Lag, Hard Start, Stall? Diagnose Car & Truck Low Fuel Pressure!

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1A Auto: Repair Tips & Secrets Only Mechanics Know

3 жыл бұрын

Shop for New Auto Parts at 1AAuto.com 1aau.to/c/26/i/fuel-sending-unit
Is your vehicle hard to start, especially after sitting? Does it stall out, or lag when you hit the gas? You might be experiencing low fuel pressure! In this video, Len shows you some ways to check out your vehicle to see if your fuel pressure is low, and then find out why!
Here are some other awesome diagnostics you can do yourself at home!
• Driveway Diagnostics!
For More Info visit us at 1aau.to/h/cgx/
⚠ DISCLAIMER:
While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

Пікірлер: 570

@1AAuto 3 жыл бұрын

√ *Watch the Video* √ *Buy The Part at 1A Auto* 1aau.to/m/Visit-1AAuto √ *Do it Yourself* √ *Save Money*

@johnfelch9088 3 жыл бұрын

@mr.professional1984 2 жыл бұрын

I have a f150 and it does all the things u say if I turn the key forward and backwards it start right up I was like is the purge valve bad? But if I fill the truck up it runs fine lol any suggestions

@Madasin_Paine 2 жыл бұрын

Well done. Thorough, well spoken, edited and useful. One question. Did you leave the key in the on position and engine off while waiting many minutes to see if pressure was holding??

@federicovasquez8709 Жыл бұрын

Hello I have a question, so I have a 2008 can-am ds 450 efi . For some reason it Turn on and drives if I continue to give it gas . But as soon as I sit in one place for longer then 30 seconds it turns off , and keeps doing that , I thought it would be the fuel pump relay but I already change it and it’s doing the same thing can you help me out

@jimcoats385 Жыл бұрын

please L

@ironcladsrightsawareness4293 Жыл бұрын

I like how fast he talks and gets right to the issue ; symptoms, testing, repairs, etc. He's not a slow talker and drags it out. Thank God. 🙂

@Mambo_sauce Ай бұрын

Bro did a 19 minute workout doing nothing but hand jesters 😂 🏋🏽‍♂️

@Dailyfiver 3 жыл бұрын

Fantastic video! I couldn’t help but to notice that he says “vehicle” like “vyrhicle” every time though 😂

@rickbrower5794 2 жыл бұрын

I couldn’t help but notice your unnecessary comment. I mean if you could decode his speech issue then he must have communicated effectively enough. There were literally thousands of other words. I am saddened by the state of our internet discourse.

@Dailyfiver 2 жыл бұрын

@@rickbrower5794 Thanks for completely overlooking my “fantastic video” comment and turning a lighthearted comment into a big deal. I am saddened by the state of our internet discourse.

@rickbrower5794 2 жыл бұрын

Backhanded compliments are just the thing everyone likes to hear. Drew, you have a responsibility in society not to be a bully. To be taken to account when you are one. And to apologize if you realize you made a mistake. This would be akin to a person saying that someone’s hat is cool then pointing and laughing because they are blind. I hope you can understand how your words matter. If not, that’s okay. I have a great sense of humor… laughing at things like this are not funny.

@zim8236 2 жыл бұрын

@@rickbrower5794 I don’t understand why people get so offended/triggered over the smallest little things. Comparing him making an observation about his dialect to laughing at someone who is blind is a piss poor analogy. If he said something like “It’s pronounced “vehicle” not “vyhricle”, idiot.” Then that would be rude and completely unnecessary, but All the guy did was comment about an observation he made. He shouldn’t apologize nor does he have a need to. If you don’t like what he said cry about it and move on. Grow up.

@cheapthrills49 2 жыл бұрын

All I hear is veerhichle.... I'm laughing wondering if he's playing around like "meow" on super troopers

@isolationmillions5227 2 жыл бұрын

I can tell this guy did extra credit on school presentations !! Great video !

@iknowlaa Жыл бұрын

im sure somebody did mentioned in these hundreds of comments which i have no time to read all, O-rings in modern in-tank fuel pump+filter+regulator, need to be changed as well to reduce/prevent gradual loss of fuel pressure over time and improve fuel pump efficiency(less workload in the long-run). sharing experiences is cool.

@mauricelee7299 Жыл бұрын

Dude, I love the fact that you mention a 96 Dodge ram all the time lol. That is the exact truck I am working on.

@kellyfuller1942 3 жыл бұрын

Lens videos are so informative! I've n ever found anyone on KZfaq who explained things more clearly! Thanks buddy love the vids!

@1AAuto 3 жыл бұрын

Glad you like them! Thanks.

@lovemyshepherd 2 жыл бұрын

I don't think it could be explained any better thank you.

@1AAuto 2 жыл бұрын

You're welcome! Thanks for watching

@ward26102 2 жыл бұрын

Useful comprehensive fuel troubleshooting advice.Thanks 1A.

@glennfoster6217 3 жыл бұрын

Perfect timing for me - am having these issues - great & understandable instruction ! I feel like I should pay you for a diagnosis ♡ you have talent bro God bless

@1AAuto 3 жыл бұрын

+Glenn Foster Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

@DEVILS_advocate05 3 жыл бұрын

What the ads

@benjaminrichards4770 2 жыл бұрын

Y@@1AAuto u

@jonlovett6173 10 ай бұрын

thank you for a comprehensive review of fuel delivery fundamentals

@ralphwaters8905 3 жыл бұрын

In my '87 Ford 5.0L, fuel pressure is relative to the intake manifold, so the gage reading (relative to atmosphere) will drop with engine running, and can vary at least 10 PSI as you blip the throttle. The fuel tank is flat and sloshes badly even when fuel level is low. The resulting weight transfer makes it much more difficult to manage (and more dangerous) than you would think, so I made an attachment for my floor jack that supports the tank more widely AND also keeps the jack itself from tipping over. This has come in handy for transmissions that like to roll off the jack.

@XTRABIG 2 жыл бұрын

Thanks for this explanation. Thorough and clear. Gonna get my pump changed out.

@UnitedWeStand2020 9 ай бұрын

By far the best video on Utube I've seen on this subject, Well done 1A Auto and thank you for ALL your videos. Very helpful !!👍👍

@81wladar 3 жыл бұрын

So many informations - thank you so much, many years of experience put into 20mins, God bless you!

@1AAuto 3 жыл бұрын

Glad it was helpful!

@BananaEskimo 2 жыл бұрын

This guy has legit taught me so much, I got a job in FL as a mechanic and I used some of his tips and made my boss look like a dumbass…. Len is very smart

@lafrancois6323 Жыл бұрын

Where in FL 😅

@tommyconner1467 8 ай бұрын

I can teach you anything you wanna know about mechanic work,

@MikeSmith-nu9wt 2 ай бұрын

@@tommyconner1467you in florida also ? I put a hoist and a cement slab in for my chevy truck projects , sometimes i need someone to bounce ideas off of ..no one around here likes to wrench ..so there all lost on this stuff when i talk to them , and im not to knowledgeable , just enough to get me in trouble 😂

@tommyconner1467 2 ай бұрын

@@MikeSmith-nu9wt I'm in Georgia

@believeinfaith2036 7 ай бұрын

I love you guys you all saved me thousands! I appreciate your videos and everything you guys do! You guys are a God send to the community that otherwise would be at the mercy of shops paying thousands, of course it helps to mechanically inclined but your videos makes life easier to understand when one has to deal with certain issues., for example me at this particular moment I'm dealing with .,.,.I love you guys! Happy Thanks Giving and Happy Holidays 2023 -Sean Robert

@edwinflood6184 Жыл бұрын

Thanks I learned a lot. My problem is surging and bad fuel response. I'm going to try these tests and hopefully find the problem.

@ariq1731 2 жыл бұрын

This guy knows his stuff 💯

@JessNW0lfG4NG 5 ай бұрын

I love you man, I know I'm a year late for saving my expedition but fuel pressure or the Fuel pump shat the bed. I had to keep my foot on pressed slightly on the gas, otherwise it would stall. It's last day with me, it stalled in traffic and thankfully I managed to steer into a side street with no power, everything just shut down so it required some strength to steer that beast. 1999 expedition with the V8 Triton engine. Lesson learned.

@adventures223 2 жыл бұрын

This is great you explain things in a easy to understand way so many people show so many different ways to do things and that gets people who are new to this confused thanks

@drop0ne_f20 2 жыл бұрын

The spark plug tip was grade A helpful. I am going to pull out my plugs and hope that is the issue. After all the videos I have watched and also the various sources of text-based information I feel I am starting to narrow down the issue I am having.

@dadosytornillos4256 Жыл бұрын

Wow, increíble information, i know it took so long to learn such thing, and making it to happen, I have learned alot watching, i made mistake but i enjoy doing it, i think this is my job field.

@kuskiy8056 2 жыл бұрын

Very detail. Great job on the explanation. Now I know what my problem might be.

@benedictfrederick1359 Жыл бұрын

you are the best on fuel pressure, I will say it didn't fix my problem yet but I will try Thanks

@treallen7178 2 жыл бұрын

I always learn a lot from this site. Since I'm a DIY shady tree mechanot...this channel is rt up my alley..keep up the good info!

@cesarguardiola4045 2 жыл бұрын

This guy was pretty awesome. Great video.

@luismarty1685 3 жыл бұрын

Thank you so much for the insightful and lucid explanations.

@1AAuto 3 жыл бұрын

Glad it was helpful! 1aau.to/m/Shop-1AAuto-Now

@gordonchandergupth6956 2 жыл бұрын

Outstanding video !!! Informative and accurate. His explanation made absolute sense and covered the issues my car was having. Replacing the pressure regulator solved my problem. Thanks dude, you saved me losts of cash for a mechanic.

@donnyjolly996 Жыл бұрын

VIDEOS VERY HELPFUL. I LEARNED SOME THINGS THAT I THOIGHT I ALREADY KNEW.. HOW AND WHY MEANS. A LOT. I NEVER THOUGHT OF A FUEL PRESSURE REGULATOR... AS. A. CHECK. VALVE. I WATCHED 2 VIDEOS AND LEARNED AT LEAST 10 IMPORTANT FACTS THAT YOU EXPLAINED IN A WAY I COULD UNDERSTAND.. I AM OVER 70 YEARS OLD.AND YOU CAN UNDERSTAND WHAT A BIG HELP YOU ARE. THANK YOU VERY. MUCH.

@Engineerboy100 3 жыл бұрын

Great job, a little animated, had me cracking up, but I did learn a few things, and that was great. Thanks for posting.

@1AAuto 3 жыл бұрын

Awesome, thank you!

@XTRABIG 2 жыл бұрын

This guy knows his stuff!! 💯

@endurofan9854 Жыл бұрын

yeah agreed

@ModernGentleman 3 ай бұрын

Except how to say vehicle 😅

@greenshootstv4117 3 жыл бұрын

One of the BEST videos ever!

@1AAuto 3 жыл бұрын

Thank you! Glad you enjoyed it!

@sean52mcardle 3 жыл бұрын

thanks for that information Len you have given me great hope

@antonioescobar8414 4 ай бұрын

From now on I will buy my parts from a1 auto you guys are 😎 🆒️ and have great knowledge

@John-xh9cl 3 жыл бұрын

I had a fuel relay on my 4.8 in backwards. Make sure your relays are not in backwards. Needs the permanent ground on 86/30.

@frank88ster 2 жыл бұрын

Excellent vid!!! Learn heaps!! Probably 'solved' my stalling problem on my 2009 Kia Carnival. Now onwards, I will keep my tank at least half full and get a pressure gauge tester to monitor my fuel line pressure. What do you know about 'sticky' fuel pump? Is that also due to low fuel, overheating, bad fuel? Worn parts, time to change? Thanks. Frank

@shirleygreenfoulks1608 11 ай бұрын

Thank you for this info. I really believe you have just helped me with my 2000 Honda Cr-v problem

@AlkandaryLightingModification 3 жыл бұрын

hi, thanks for sharing knowledge, I experienced something similar to your explanation. I have a ford focus automatic transmission vehicle which has a problem when it is started it takes a long time to start the engine and the code P0087 appears on the speedo check engine light display. What is the easiest solution you can give me to solve this problem?

@keivanabdollahpour8737 Жыл бұрын

very informative, complete and comprehensive. Thanks

@ralphjcibula4369 2 жыл бұрын

Very well done! A+. A skilled and knowledgeable presenter.

@1AAuto 2 жыл бұрын

+Ralph J Cibula Thanks for the feedback!

@blakeerdmann Жыл бұрын

Thanks for this video. I have a 2014 Silverado 3500 HD with dual tanks (gas) I've spent over 4k in the past 3 months to get it to run right, even $1400 at the dealer, and they even send me on my way not know how to fix it. I'm going to test out the fuel pressure and look into the pumps next. I've already replaced: knock sensors, all 8 injectors, all 8 coil pack plugs and wires, mass air flow sensor, tps sensor, o2 sensors, both cats. I was at a loss until this video.

@axle71698 Жыл бұрын

Great tutorial man. Thank you.

@johnwesu7772 2 жыл бұрын

Pretty good display, thank you

@gollygeewilllickerss2390 3 жыл бұрын

You guy's put out really good videos I will get me a fuel gage and scanner, thank you!!

@1AAuto 3 жыл бұрын

+GollyGeeWillLickers S Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

@raystarky3896 2 жыл бұрын

Wow GREAT video! loved every minute. Did not know any of this because never had an issue and i have been a Holley carburetor since 1977; about 4yrs ago i had a problem like this and i added and inline fuel pump and it solved the problem BUTT i know it is not proper; Thankx for this video because now i know what to basically look for on a problematic 1995 Blazer 4.3L engine

@mintypickles2298 2 жыл бұрын

definitely gonna implement this knowledge on my "Verichle"

@DonaldMadden-ch2wi Ай бұрын

I thought the video was very thorough the gentleman explained it very well and I appreciate thank you much

@manuelgigante6741 3 жыл бұрын

superb presentation. helps a lot of us regarding our cars

@1AAuto 3 жыл бұрын

Glad it was helpful! If you need parts for your cars, please visit 1aau.to/m/Shop-1AAuto-Now

@ydiscoveredydiscovered5223 3 жыл бұрын

Your videos are very helpful thank you please keep making these...

@1AAuto 3 жыл бұрын

+Ydiscovered Ydiscovered Thanks for the feedback!

@byrceblackshear4249 3 жыл бұрын

I want to say thank you your videos help me with my 99dodge ram 1500 5.2.

@1AAuto 3 жыл бұрын

Glad to hear that!

@KEITH19612006 Жыл бұрын

Len ! love your videos ! did my serpentine thanks to you piece of cake. now i have a stalling issue with my 2012 ram 1500 5.7....ive done the plugs, serpentine, throttle body cleaning, pcv valve...it stalls at the stop sign. the rpm dips below 6000 an it stalls. if i tap the gas pedal when it starts to dip, it wont stall. i hope i can avoid a fuel pump change. it had a trouble code po463 that went away with a fuel injection cleaning. next thing i will be doing is to check MAFS, MAPS, EGR VALVE, IAC

@djautomotive8738 3 жыл бұрын

Explanation is awesome bud!

@1AAuto 3 жыл бұрын

Appreciate it!

@juelzgdo2660 9 ай бұрын

NEVER A DISAPPOINTMENT ON ANY VIDEO FROM 1A AUTO 🤞🏽🤙🏽

@JohnSmith-ok9sn 22 күн бұрын

Excellent, excellent, EXHAUSTIVE video!

@francisdsa6790 3 жыл бұрын

Very good explanation and demonstration information about safety and DIY Thanks 👍👌🔧🙏💐

@1AAuto 3 жыл бұрын

Glad you liked it. If you ever need auto parts, please visit 1aau.to/m/Shop-1AAuto-Now

@lylegoodluck 11 ай бұрын

Great video!! I have a 08 5.3, torqstorm, all stock block, upgraded aeromotive 340 fuel pump and 80lb injectors. At times I'd have to bled my fuel rail to start my truck. Idk what's causing this.

@lortega5537 2 жыл бұрын

Good video! Learned a lot. Nice job 😎

@makaveli2tt Жыл бұрын

Great video and presentation. I learned a lot

@redmouse6346 Жыл бұрын

So if fuel pressure is the issue- the simplest way to start is the fuel filter? Or just go straight to fuel pump? You are so good at dumbing this down for DYI’s like me. And it’s impressive that you can do it talking so fast. Great video

@augustbiechy34 3 жыл бұрын

I love the enthusiasm... Big thumbs up

@1AAuto 3 жыл бұрын

Thanks for watching!

@smithraymond09029 3 жыл бұрын

Super cool video. But he didn't cover diagnosing fuel pressure drops at the injector end or the fuel pump side of the fuel system. In other words, is the system leaking down before the fuel rails or after?

@soundsbeyondcoolmedia 2 жыл бұрын

you 1 of the best my guy...well explained

@jimkwan1807 3 жыл бұрын

Very descriptive in the diagnosis.

@1AAuto 3 жыл бұрын

+jim kwan Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

@notwrkn2mch 6 ай бұрын

I have a 98 Jeep ZJ I just purchased with the 4.0 and this video has helped me tremendously on how to use a fuel gauge properly. I've purchased from you before with great results and will do the same if my pump turns out bad. Question: I found my fuel fill-up compartment is busted down at the bottom inside where the gas cap seats and the little flapper door is broken and pushed to the side...... I'm hoping that is the problem and i need to borrow my buddies fuel gauge. Hence this video is a big help. Thanks and Merry Christmas 🙂

@mitchellwhite2086 3 жыл бұрын

Yes got a lot of information from that thank you I have a 2002 suburban with a 53 the motor was bad I changed it didn’t realize that it was flex fuel truck and I put a regular gas motor in it didn’t realize it till I was all done and the gas was running funny finally realized it fixed a couple things now my fuel pressure is at 45 psi and it’s slowly leaking after a reasonable amount of time I’m wonderingIf it’s the pump or the regulator surprisingly I didn’t have many issues changing over from the flex fuel some said I had to reprogram my ECM I did not so please any response would be grateful thank you so much

@bobbiecooper948 3 жыл бұрын

Ha just picked up my 96 Tahoe that had a leaking regulator. Had the shop change out the old central port fuel injector to the updated multi port interior since the regulator was on it(might as well right). Oh baby she drives great now.

@1AAuto 3 жыл бұрын

+Bobbie Cooper Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

@939driver Жыл бұрын

Very informative. I changed my fuel injectors because my car was running rich and I could smell a heavy petrol scent near the engine. When I changed them my car was running a lot smoother however still some hesitation on startup and fuel scent. While I changed them I could see that my intake valves were MASSIVELY caked with carbon deposits. Could this be the cause of my car running rich and having a hesitation om startup? Or should I check fuel pressure regulator? I am going to clean my intake valves this month just to be safe, but maybe you guys know? Best wishes from the Netherlands 🍀

@jessecano2392 2 жыл бұрын

Thank you for sharing your knowledge god bless

@stevemathe2602 3 жыл бұрын

Please comment on calibration of fuel level reading. My friend constantly seems to run out of gas on his 1989 Honda Civic LX, when he actually has lot of gas in the tank and guage shows half full. When he adds just one gallon of gas car starts. Fuel pump and filter were replaced and still does the same thing. Thank you for your kind expertise.

@mariogastelum1498 Ай бұрын

Thank You very much for an excellent presentation. This video is very well explained . The information is very usefull.

@michellet_thatsme Жыл бұрын

Amazing Video! Thank you so many times over!

@eddieobrien3107 3 жыл бұрын

Very informative, thank you

@mazzarour5954 3 жыл бұрын

Thank you very much. Basically all the information needed about fule system. But what I didn't understand is why did you need to change the sending unit if the problem is the fule pressure regulator?

@alexlopez2746 2 жыл бұрын

On some cars the regulator is inside the pump and make more sense to replace the whole thing

@christopherhill57 3 жыл бұрын

Very helpful...I'm getting fuel up to the fuel rail but not coming through the injectors🤷‍♂️...my question is could it be a weak fuel pump?

@dieseldawg7132 2 жыл бұрын

Unless it’s a pop it inject, but a computer controlled injector should just open but not open based on pressure but electronic control

@annakrause2233 Жыл бұрын

This was amazing. good job

@lafrancois6323 Жыл бұрын

You're a star bro.

@realjaxon 3 жыл бұрын

Great video, and thanks for posting. I had a leaking fuel filter on the tank side of the filter. I put a hose clamp on both sides of the filter and that seems to have fixed the leak. There was and is a 2-3 second delay in combustion before and after I fixed the filter leak. I've suspected that it might be the pressure regulator causing the delay. Your video makes me lean that way even more now. And, yesterday I noticed for the first time evidence of a small fuel leak just below the pressure regulator but also very close to the fuel rail connector. I have an '02 Taurus DOHC Duratec engine. I assume there's a replaceable O-ring on that fuel rail connector ?

@seananthonyjohnson 3 ай бұрын

ran across u on accident but heard about u from another vid. U rock n I hope good on u. can't wait to work on my suv.. thx 😊

@hcooper267 4 ай бұрын

This is the best and specific vidio I ever se abbot this topic. Thank you.

@jengelenm Жыл бұрын

I have these issues, made a video with my phone with a manometer cranking and my mechanic says replace the pump. But i think better also filter and pressure regulator then. Thanks a lot!

@flightofthefatman Ай бұрын

That was really thorough. 😎👍

@romelvillanueva5206 2 жыл бұрын

informative video, i like it, looking forward to apply it on my 2016 mitsubishi mirage g4

@1AAuto 2 жыл бұрын

Glad it was helpful!

@carlkennedy2499 7 ай бұрын

Great video mate. Very informative and interesting 👍

@judykanary4393 Жыл бұрын

I am a 70 year old lady my car will not start it tries to start but just want fire. I have watch about a 100 videos and your video is the best out of all I have watched. I am going to recommend your videos to all my friends.

@CanIgetAnAmen 2 жыл бұрын

Great video you guys thanks a bunch!

@kevinfraser640 2 жыл бұрын

Great video, 2010Yukon XL, 6.2L , what if you have the leak back in morning which would think regulator or dripping fuel injectors. What if you have the drip back And you have a Rich burning system. Both banks burning rich? Would you think fuel regulator also? Thank you, I have had a very hard time finding this problem

@raymondvasquez8575 3 жыл бұрын

Hi, New Subscriber Here. GreatVideo.. 👍 I like how you explain everthing. very informative! I would've liked to see what vehicle you're using in the video and hear you touch on certain things. Such as on that particular vehicle the fuel filter is Not visible. " if I'm correct" and that's a Dodge Ram. The fuel filter is actually part of the fuel pump assembly. But again, Great Video. You Gave a lot of info, you didn't ramble and I didn't get bored!!! 👍👍👍

@jasminetatum1645 Жыл бұрын

Wow, very informative needed to hear all of this information. I will send this video to my Dad. Hopefully, it will give an idea of what's going on with my car. I have a 2009 Pontiac G6 pushing around 214,000 miles. As soon as I am about to take a turn, my steering wheel gets hard, and my gas pedal is hard as well. But all my lights are still on in my car. I can shift gears easily with no problems, but it will not go at all. But the few times it has done that, I never took notice to hear if my engine was still running or not. Had someone to place it on a machine, but no codes pulled up at all. So any information or a possibility of what might be the problem would be helpful.

@rebwar08 2 жыл бұрын

Thank you for this

@albertcabello7855 Жыл бұрын

Thank you so much bro,this is good information

@trini_boi2414 3 жыл бұрын

Good video I learned something..btw I tried this but I noticed when I rev the car the fuel pressure dropped about 2 to 3 psi instead of going up now I'm trying to figure if it's the fuel pump or the fuel regulator

@aaronautry1981 2 жыл бұрын

You lost pressure while revving because it consumed higher volumes of fuel this it robbed the pressure. Could be a throttle response issue. Like a delay or it could be a clog somewhere

@Franklinveterinarycenter1of4 Жыл бұрын

awesome presentation

@reginaldjackson3754 11 ай бұрын

Len did good on the video however i felt that he couk have went more in depth with the fuel pressure gauge he ran through the demonstration to fast and i would have liked to see every step of him attacking the gauge and seeing the results overall he done a great job /// my question to him is how do i get the fuel pressure up to regulation on my Toyota sequoia 2003 to allow it to start ??