Fuel Rail Pressure Sensor Diagnosis

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4 жыл бұрын

In this video I go through the process of verifying a bad fuel rail pressure sensor. The Specs and Initial diagnostic process is pretty standard. Always look at your shop manual for diagnostic information.
Hope you Enjoy:)
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Пікірлер: 119

@mike-yp1uk 9 ай бұрын

Great video it's nice to see a multimeter being used properly.the decade box allows you to dial in resistance into the signal wire and they are cheap

@JLsAutoSolution 9 ай бұрын

Great point

@aliasskipstevens4246 Жыл бұрын

Your voice sounds like an HVAC tech from another channel...either way you have good diagnostic skills. The best part for me was the repair completed side showing the signal voltage of 1.7. I believe I can diagnose my 0193 code better now thanks to your efforts. Thanks, man. Good job.

@JLsAutoSolution Жыл бұрын

Glad to help

@lewissmithmk7622 11 ай бұрын

This video helped me out big time!! I was seriously giving up with. 1.4 hdi, 3 days of time wasting tried this could not believe it!! removed the p0193 code , watched this had to go out at almost midnight to try it 😁 thank you!!

@JLsAutoSolution 11 ай бұрын

Glad I could help. and thanks for watching

@selvamg635 3 жыл бұрын

Awesome technical explanation with wiring diagram, test light and step by step diagnose without any skip. please continue this way of video presentation. thanks for your video

@JLsAutoSolution 3 жыл бұрын

I will try my best

@mechanicmatt871 4 жыл бұрын

Nice use of a LED test light and live data, thanks Jeremy

@JLsAutoSolution 4 жыл бұрын

Glad it was helpful! any time.I haven't finished your video on the fuel pressure issue yet.. going to get to that tonight. have a great day

@verajavi12 3 жыл бұрын

For the 5volt reference u can use test light or 20ohm resistor to voltage load and if your 5volt remains it's a healthy 5v reference.

@hammerhead6537 4 жыл бұрын

Great video. Clear troubleshooting technique using the electrical schematic, very educational. Thank you.

@JLsAutoSolution 4 жыл бұрын

You are very welcome come😀

@francisdsa6790 3 жыл бұрын

Very good demonstration and good explanation thankful to you 💐👌👍🇦🇨

@reypaypa7494 3 жыл бұрын

I'm one of your fans I hope I can work to your shop someday because I want to learn more specially for you because your the best

@kivet0n Жыл бұрын

A very comprehensive and methodical video of the troubleshooting process. Thanks for the straight forward detailed explanation of every step you were performing.

@JLsAutoSolution Жыл бұрын

Thank you

@stevenkietzke5582 4 жыл бұрын

Learned a couple of test with scanner danner Good video

@sergiobuitron6736 4 жыл бұрын

Just found your channel. Awesome Job, keep it up. Congrats!

@JLsAutoSolution 4 жыл бұрын

Thank you

@Paulhenri80 4 жыл бұрын

I have currently the same problem - I narrowed it down to the sensor for now but i will définitely test things again with your method. Thank you for sharing this.

@JLsAutoSolution 3 жыл бұрын

Did it work?

@Paulhenri80 3 жыл бұрын

JL's Auto Solution Sadly, no :( Injection module does not supply any current to the sensor. It will not be for nothing, i know more now :)

@davsky7280 3 жыл бұрын

What is the problem of the engine before the test, it can't start?

@TT-cv7rx 3 жыл бұрын

Thank you for this great video.

@JLsAutoSolution 3 жыл бұрын

Glad it was helpful!

@davesterl 4 жыл бұрын

Nice bypass with the LED Jeremy

@JLsAutoSolution 4 жыл бұрын

Thank you. I learned that 3yrs ago.. and has been a great time saver ever since.

@duanedonaldson2262 2 жыл бұрын

It would be nice to see the fuel pressure sensor working showing different pressure voltages during the engine revving up, Thanks for a good video with schematic, diagnosis, codes, and some repair procedures, my first time here, a little more data on a running engine would have been a gold star.

@daliborjurjevic1979 2 жыл бұрын

i howe problem on 530d the car losin gas pedal and ticking rmp when i driving

@LukeNixsound 3 жыл бұрын

Very helpful, thanks

@JLsAutoSolution 3 жыл бұрын

You are welcome

@paul914 3 жыл бұрын

Top video mate!

@JLsAutoSolution 3 жыл бұрын

Thanks a lot!

@jacobs3883 Жыл бұрын

Thank you for your help.

@JLsAutoSolution Жыл бұрын

Glad it helped

@hasmukhchampaneri9668 3 ай бұрын

Very good well explained, I manage to understand most of troubleshooting process, just I am not able to work out the fix detail, please can you explain what you did, Thank you.

@EdgarLopez-ik3yk 4 жыл бұрын

Awesome vid keep up the good work

@JLsAutoSolution 4 жыл бұрын

Thank you

@nigelclark7360 3 жыл бұрын

Very good we'll explained

@JLsAutoSolution 3 жыл бұрын

Thanks and welcome

@MrHeffnerpf 5 ай бұрын

thanks. Just wondering where you got value for the expected KEKO sensor voltage?

@lutfilamat4215 2 жыл бұрын

What tool did you use to back probe the connect?

@Albrtherrera10 3 жыл бұрын

I have the same issue but a low input p0192 code. Would my troubleshooting process be the same?

@ivandrago2557 3 жыл бұрын

Find you on mechanic Matt channel I am subscribed now, keep doing methodical videos

@JLsAutoSolution 3 жыл бұрын

thank you... i will try my best

@amarabdelli487 2 жыл бұрын

Thanks for the video, the sensor connector has 6 wires, 3 wires for the pressure sensor and the other 3 wires why ?

@AaBb-kk2wn 3 жыл бұрын

you are the best thank you

@JLsAutoSolution 3 жыл бұрын

You're welcome!

@tmanda323 3 жыл бұрын

With all respect to JLs Auto Solution but ScannerDanner is the best.

@RobertRafai 2 жыл бұрын

I got same error code but on the end, was poor contact on computer ECU connector, that one with a lot of wires... check that too.

@liquidh6344 3 жыл бұрын

Thanks. This was very helpful for me to find out whether it’s the ECM or the wiring/sensor. I’m also getting a P0193 in my 2009 Lexus IS250. If you have experience working on the IS250 for this issue, do give me a tip or two. Thanks, and Merry Christmas!

@budj7898 Жыл бұрын

Sorry old video but just found it. If you looked at parameters on the diag tool would the fuel pressure pid change when pulling the signal down with the led test light?

@JLsAutoSolution 11 ай бұрын

yes it would, you could make it climb and fall if the wiring is good.

@MattyMind 6 ай бұрын

I don't know if anyone asked, but if someone could answer this for me are those voltage values basically for most cars or all cars. Or does this specific use 5? Just trying to see If I need to go searching for my Ford 500. Voltage values Yes, I'm still having a problem. Even after a place in the sensor which i'm starting to believe was junk from the store.

@ridwaanessa1886 3 жыл бұрын

Hi , would code P2291 be referring to the same sensor?

@smartdiag7136 2 жыл бұрын

Thanks for video

@JLsAutoSolution 2 жыл бұрын

Most welcome

@iankelly2110 3 жыл бұрын

well done nice job

@JLsAutoSolution 3 жыл бұрын

Thank you! Cheers!

@iankelly2110 3 жыл бұрын

@@JLsAutoSolution so its ground side switched yea the signal wire

@shervzmedz8546 5 ай бұрын

Did u change the sensor ??

@Studio-Nelly-Ri 2 ай бұрын

thx,helpfull

@user-ky7ty3ie1x 5 ай бұрын

Hi ive got po193 would that couse active short on my 10a fuse no crank no start effectively

@puckhead7008 2 жыл бұрын

JL's, nice video. I subscribed :-) Hey, I'm ready to start up an '03 Mercury Marauder that I had the engine and lots of other items rebuilt/replaced on, including the fuel pump. I added a fuel pressure pod gauge that has a sender that sits right on top of the stock fuel rail pressure sensor (frps). Anyways, I'm not getting the pump to run unless I give it 12 volts from the battery. When I use the fuel pump driver module and the PCM , the pump won't run. I'm trouble shooting the frps and your video helped. I get 5V, 5V, and 12V on the three pins when the connector is disconnected...like you do. I get 5V, .5V and 12V when the key is on and a pin is stuck through the weather pack like you did (great trick!). Is this .5 in the right range for a completely depressurized system? Also, I guess I do not know if .5 volts would be for relatively high pressure or relatively low pressure...do you know? Thanks so much! :-)

@JLsAutoSolution 2 жыл бұрын

Thank you watching and the question. So i did a little research and found that at KOEO that the voltage should be roughly 0.2V. So that means that low voltage equals low pressure. Is 0.5V something to be worried about? Since your vehicle is not running I would say not at this time.. I would keep focus on getting the vehicle to run before going towards a FRPS Fault. I would check to make sure the inertia Switch is not open- this will cause no power to flow to the FPCM- it is located in the truck on the left support. Thanks for watching.

@jamesself2409 7 ай бұрын

Hi, what is steps on erase engine code po193 with ya301 scanner? gas not leaking

@timmoy3037 3 жыл бұрын

Great Video ! may i ask if i can still use the bulb test light when doing the bypass ? :)

@timmoy3037 3 жыл бұрын

not the LED one ?

@JLsAutoSolution 3 жыл бұрын

using an incandescent or and L.E.D test lamp will give you the the same result. just be aware that the voltage that will will be dropped will be greater with the incandescent test light.. Also note that there at 2 styles of signals out there with bias voltages.. one is voltage-- 12v or 5v monitored signal or a ground monitored signal.. you need to test in order to be certain which system you have.. thanks for watching..😁

@timmoy3037 3 жыл бұрын

@@JLsAutoSolution wow thanks for responding ! but LED is better for bypassing ?

@s3nata16 8 ай бұрын

Hello i would be happy if u help me with my issue bcs no one could do so far.i have dtc p0090 p0091 p0092 popping and so far I've replaced fuel filter fuel pressure regulator fuel rail sensor and fuel pump has been removed and checked but the problem still remains i have checked voltage on the plug its 2 wire's one is shown 8.8volts engine not running so is this a bad ecu or something else thats a fiat ducato 2.3multijet engine is stalling when its driven thank you in advance🙏

@kyleriley7362 3 жыл бұрын

Hey JL’s Auto Solution I have a quick question. You said the signal wire should be 5 volts like you showed. I saw elsewhere that it should be around half a volt with the engine off and mine is .5 - .6 volts. Is this correct or does every car vary? Thanks

@JLsAutoSolution 3 жыл бұрын

Hi kyle.. So first off thanks for thw question.. Always check service data for your vehiclw. Now.. All frps That i have tested have been between 0 .6-1v(signal wire) .. Key on engine off and sensor connector plugged in( connected) and 5v when disconnected. Now you shod always have a 5v feed and a sensor ground. I mention this at the 2:50(ISH)mark.. THANKS for watching..

@kyleriley7362 3 жыл бұрын

@@JLsAutoSolution awesome thanks for the quick reply. So yea I’m definitely losing voltage somewhere on the signal since it’s only .5-.6 unplugged. My ground is 9v and reference is 5v (unplugged)

@user-ky7ty3ie1x 5 ай бұрын

Hi what 0.003 Oms compering to open means

@leepeezy 2 жыл бұрын

My sensor signal wire is 3 volts ignition on plugged in so 4.9 volts 3 volts ground is something wrong? Getting low pressure codes and car isn't running.

@menradurriza8034 Жыл бұрын

thanks

@JLsAutoSolution Жыл бұрын

welcome

@drcod3r329 2 жыл бұрын

can you tell me which diagram software you using if dont mind

@JLsAutoSolution 2 жыл бұрын

This was the oem wiring diagram. you can get this off of mitchel or alldata or identifix or motologic

@shamelect693 3 жыл бұрын

Well done brother 👍. I had two codes at the same time on my range Rover sport 2010 . 1, P0088 fuel pressure too low 2, P0087 fuel pressure too high Please could that also be rail pressure censor ??

@JLsAutoSolution 3 жыл бұрын

In all situations it is highly suggested to perform a thorough diagnostics. the last thing you want is to replace a component only to have the same issue afterwards.. thanks for watching.

@shamelect693 3 жыл бұрын

@@JLsAutoSolution thanks stay safe

@upkarbath 4 жыл бұрын

👍👍

@FrankRizzo707 3 ай бұрын

Should any of the wires in the connector have power when testing with a circuit tester? Car on engine off.

@JLsAutoSolution 3 ай бұрын

12v no.. power is fed through a 5v circuit, so withe the connector connected you should have a 5v a ground and a signal wire, the singal wire will vary depending on the pressure in the system

@hpfza 3 жыл бұрын

Can you test for continuity on the sensor itself?

@JLsAutoSolution 3 жыл бұрын

you can, but it will be in the m.ohms reading if im not mistaken, unless there is a straight short to ground or 5v circuit, which then would give other issues. thanks for watching

@MuhammadRafiq-is3fd Жыл бұрын

Can we bypass the rail pressure sensor by looping those signal wire and supply wire ?

@JLsAutoSolution Жыл бұрын

no, if you try to bypass the signal wire you will get 5volts or 0volts, the sensor needs to be use for proper fuel delivery.

@MuhammadRafiq-is3fd Жыл бұрын

@@JLsAutoSolution 👍

@edgarvazquez1128 3 жыл бұрын

I have the same problem in my audi q7 code p0088 fuel rail pressure high

@lanaya6261 2 жыл бұрын

So my sensor is dead! Ty so much!

@JLsAutoSolution 2 жыл бұрын

You are welcome

@ningbohenshineprecisionmac2281 Жыл бұрын

hello, we are the original manufacturer of the rail pressure sensor,

@gulag8735 Жыл бұрын

Only of use if you've good understanding of systems and tools

@RickyPisano 3 жыл бұрын

I'm pulling 274.21 psi on my fuel rail pressure on my Ford 3.0L DOHC Duratec V-6 at idle. I need to check it with key on engine off. No engine light. Seems high to me.

@JLsAutoSolution 3 жыл бұрын

What vehicle is this.. And year..

@RickyPisano 3 жыл бұрын

@@JLsAutoSolution 2005 Ford 500 Limited 3.0L Duratec DOHC V-6.

@JLsAutoSolution 3 жыл бұрын

So 240-485 kpa is normal which equals to 30-70psi.. Check your pressure setting and make sure the scan tool is not reading it in kpa.

@RickyPisano 3 жыл бұрын

@@JLsAutoSolution Thanks. It WAS k/pa. I had my scanner in text mode and for some reason it was reading psi AND k/pa the same... as k/pa. I switched to the guage and it's about 50/60 psi. Appreciate the help man!!

@RickyPisano 3 жыл бұрын

@@JLsAutoSolution Upon further investigation of my lean condition, especially in Bank 1, I found oil in the spark plug well on cylinders 4 and 5, Bank 2, on my Ford 3.0L DOHC Duratec V-6 engine. Cylinder 6 was clean. I haven't been able to check Back 1, the 1, 2 and 3 cylinders because I can't even see them. Against the firewall. I need to remove the Intake Manifold. So I know at least 2 cylinders on bank 2 were misfiring. I'm not sure how this would cause a lean condition in Bank 1 though. I can't imagine Bank 1 looking like this because the car ran pretty good. Idled a bit rough but still not as bad as I'd have thought this would make it. At any rate I found what could possibly be causing everything. What a pain. This car was meticulously maintained and is in perfect condition. Just a shame. I have my work cut out for me now. Freezing out now too!! Any advice would be appreciated!! Thanks a million man. Your help has been appreciated!!

@DJ-tn7vj Жыл бұрын

Bro excellent work. I use jarhead 5volt ref box to pull it down but SD did teach us that on his premium channel.

@JLsAutoSolution Жыл бұрын

thank you. We all get our information from the same places, I read this in a book and then seen it on one of scanner danners videos, then tried it out myself lol.. and it works great.

@aymenmohamed1134 Жыл бұрын

👍🏻👍🏻👍🏻

@kermets Жыл бұрын

6:14 lucky you didnt blow the ecu up putting 12 volts down the 5 volts ecu power side......

@JLsAutoSolution Жыл бұрын

The meter was reading a voltage drop. No cause for concern since I was set to check voltage and not amperage.

@brandinfisher 2 жыл бұрын

Can I just take my car to you lol

@JLsAutoSolution 2 жыл бұрын

Lol. I dont have a place of work, I am a teacher and own a mobile diagnostic business.😁

@illahboii225 Жыл бұрын

I was braking an my car killed like wtf

@Hasohaso9 5 ай бұрын

Los video

@juanlanda2441 2 жыл бұрын

I noticed these newer engines that have a FRP sensor don't have a Schrader valve to test actual pressure. So why don't you explain in your diagnostic how much voltage is normal and how it's suppose to fluctuate depending on the actual pressure? You went straight to test if the wiring was shorted. Isn't the scanner suppose to tell you the voltage? Another thumb down 👎 test your fuel pressure first guys

@JLsAutoSolution 2 жыл бұрын

I agree with what your saying... if this was a fuel pressure related issue which then the pcm would have set a code for fuel pressure low or high. Now since the dtc that was in the system was fuel pressure CIRCUIT high, there was no need to go towards the fuel pressure. the pcm was seeing a higher than wanted voltage on the signal line due to the sensor being stuck or open. and thats all i was showing in this video.. thanks for watcing