Testing Toyota's Four Wire Ignition Coils The Low Tech Way

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6 жыл бұрын

Brian Eslick from How to Automotive www.howtoautomotive.com/ takes you step-by-step through the process of testing Toyota's four wire ignition coils for misfires. All test are done low tech with out fancy test equipment.This video is sponsored by Bosch.
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Owing to factors beyond the control of How to Automotive/Brian Eslick, it cannot guarantee against unauthorized modification of this information, or improper use of this information. How to Automotive/Brian Eslick assumes no liability for property damage or injury incurred as a result of any information contained in this video. How to Automotive/Brian Eslick recommends safe practice when working with power tools, automotive lifts, lifting tools, jacks and jack stands, electrical equipment, blunt instruments, chemical lubricants, or any other tools or equipment seen or implied in this video. Because of factors beyond the control of How to Automotive/Brian Eslick, no information contained in this video shall express or imply warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or information contained in this video is the sole responsibility of the user and not How to Automotive/Brain Eslick. #howtoautomotive

Пікірлер: 145

@Iarecutter 3 жыл бұрын

Awesome explanations; the coils are like the V6 Toyota Sienna I have.

@fradaja 5 жыл бұрын

I love it when just by chance it’s your engine in the vid

@itzpro. 2 жыл бұрын

Just a male thing😂

@walterwiniana 6 жыл бұрын

Awesome video! It was very helpful 👍

@HowtoAutomotive 6 жыл бұрын

Walter Winiana Glad to heat thank you for watching!

@DougHinVA 4 жыл бұрын

good and simple tip to disconnect each coil and listen for RPM 'lack of drop' to spot a faulty coil. Any back-yard mechanic can do it

@josealeman691 5 жыл бұрын

Good explanation mate , good on ya

@bobbyowens8226 Жыл бұрын

Awesome video, thanks for the help

@zulfishoro1447 6 жыл бұрын

Best information my dear.

@KelleyTannerKent 7 ай бұрын

Thank you for this video!

@spsk591 6 жыл бұрын

Awesome and I am able to identify problem one.. thanks a lot

@HowtoAutomotive 6 жыл бұрын

Spsk thank you for watching

@glorianica428 2 ай бұрын

God bless your heart, this is the best ignition coil testing video with the right tool, not the one, where they connect the electrical connector to the tester, while the coil still in the engine, is the coil or plug in question,.I knew my basic electronics was not wrong, thank you, will be buying that orange tool.

@ssmanalways3035 4 жыл бұрын

Great video, thx for the knowledge.

@HowtoAutomotive 4 жыл бұрын

Ss Man Always thank you for watching!

@enriquefranciscocarelamoya4588 5 жыл бұрын

excellent very good explanation, i was having problem with my toyota camry 2004, and following your instruction I could solve the problem Thank you

@HowtoAutomotive 5 жыл бұрын

enrique francisco carela moya Glad the video helped. Thank you for watching!

@suckOnThese3 11 ай бұрын

Hopefully you went with a Denso coil and not Bosch or you probably had to watch this video a year later.

@jgeorges3061 6 жыл бұрын

Brian, good video and info for diagnosing misfires this way is universal way for all make and models thanks for sharing. cheeers

@HowtoAutomotive 6 жыл бұрын

j georges thank you for watching!

@robswrenches9501 6 жыл бұрын

j georges Agreed J! Thanks Brian.

@dinonaccarato2989 5 ай бұрын

Excellent info

@anthonysacco2276 2 жыл бұрын

Thank you. Great help.

@Powerstroke57 2 жыл бұрын

This really helped me. However after all this testing, I swapped plugs in cyl 4 to 6 and code followed. I had a failed Iridium plug with only 15,000 on it. never would have guessed. So I say have a new plug on hand to rule out it besides coil pack

@thaershaheen2946 3 жыл бұрын

Hi sir. Please, i need to inform me the c.o.p 4 pins wiring, functions, and what about the signal polarity, and voltage ?. Many thanks

@chieflouie2821 6 жыл бұрын

I had a persistent p0302 code on 2000 celica gt. You mentioned it might be electric if error stayed on same cylinder despite coil switch. But if it was electric, why would there be a spark? All injectors replaced, no oil leak, compression good across all 4. What might still be the problem? Do you have video tutorial on how to test electric connector? The car runs fine except for the engine light comes back on after reset.

@brynden29 Жыл бұрын

Great video, I have a 2002 Tundra that is throwing the igniter code for the entire drivers side bank, cylinders 1, 3, 5 ,7. I suspect it is a ground issue. I want to test the ground at the coil plug, would i connect my multimeter to the negative battery terminal and then touch the ground wire on the clip? Or do I need to find where the coils are grounded on the engine and use that as the grounding point for the test?

@lita7041 4 жыл бұрын

Thank you for your help!!

@HowtoAutomotive 4 жыл бұрын

estelita thank you for watching!

@nikkiwillis3338 6 жыл бұрын

Brian, I have a 97 Rav4 that has been making a knocking/rattling yype noise for a while. I'm certain it's not an engine or spark knock. It has over 200k miles & burns a good bit of oil which I check & refill every few days. Yesterday I was driving slow on a back road and out of the blue it shut off. I checked the oil (full) and all other fluids, etc were good. Belts are intact, battery good... It will not crank. It sounds like the starter is turning but the engine isn't turning over. Any thoughts or ideas you might throw at me?!? Thanks in advance!

@diydantex6150 2 ай бұрын

On a 2010 0r 2011 corolla from my experience and my brothers if one coil is bad change them all. I changed one on a friends car because i only had 1 cylinder misfire code. After i changed it i had intermittent codes on 2 other cylinders. If a coil is dead completely the ECM will turn off the injector. The injectors are easy to get to so you can listen for a click with a screw driver. I wasted time checking for a broken injector wire.

@kevingliebe5607 3 жыл бұрын

can you also back-probe for resistance in ohms?

@rogetnix8354 5 жыл бұрын

if a bolt is loose and wont tighten can you use a longer bolt to tighten a coil pack?

@bareknucklesmick9761 3 жыл бұрын

How do you get the coil out if it wont slide out after its disconnected and the securing scew have been removed? I keep pulling and wiggling it but it wont budge,

@redryder8834 17 күн бұрын

Good video 👍🏻

@HowtoAutomotive 17 күн бұрын

Thank you!

@edgardoelona2949 3 жыл бұрын

Any way Sir, I changed the 2 coils #1 and #2 but no effect at all the same problem/thanks

@captainover-tighten6729 3 жыл бұрын

Thank you

@samadahmad5224 Жыл бұрын

can you verify the wire leads off the coil as I have a diagram which state that what you mentioned to be the power and ground leads are reversed. Also judging by the color of the leads in the video, it may be reversed from what you mentioned.

@zulfishoro1447 6 жыл бұрын

My car Toyota corolla xli 2011 model have a problem' few minutes run then stop engein what is the problem sir how can I fix it.

@supertony4708 2 жыл бұрын

The top plastic part has a crack (hit buy a wrech when I installed them back), just the outer plastic, not the Epoxy, will I have to buy a new one? It's pretty expensive and the coil is very new.

@danielarriaga1143 2 жыл бұрын

Hello my 06 Toyota Avalon shutdown while driving it being checked found short circuit on coils pls help any suggestions where to look not even an electrical could find

@iselaj327 2 жыл бұрын

Hi I know tis video is old but I have a question regarding the connector wires? 2 of the connectors on my Camry completely fell apart and now I am not sure the order in which the wires go back into the new connector I've purchased. How do I know what order the wires go? I have not been able to find a diagram for this particular car. Do you have any pictures I can take a look at to see the order in which the wires are connected?? Or any other way of knowing what order they go???

@jaycris1980 Жыл бұрын

I have a spark tester but i dont have that orange foam that you put in the cylinder. What is that?

@Jodka96 Жыл бұрын

Question, is it safe to unplug the coils while the car is running on a 2010 Prius?

@buya_pr Жыл бұрын

I am having Coils issues with CEL code of P0351/52/53/54 I replaced all Spark Plugs with NGK and all 4 Coils with Denso. And I'm still having the same issues. The cars has cut off on me while taking off at a stop sign or light and sometimes it has cut off while parked. It's 2006 Corolla CE Manual. Some people have told me it could be the ECU. Others have told me that it could be the fuel pump. Others have told me that it must be a ground problem. I had reputable mechanic check the car and I was told that the wiring is fine, but the mechanic couldn't figure out what was the issue. I've had this car for almost 5 years and it had never given me any issues until now.

@faviles56 2 жыл бұрын

Hi there! So with the coil swap test, after swapping coils should we wait for code to change on its own or do we clear the CEL and wait for it to come back on? How long does it usually take after the reset?

@normanmambweemmanuel7709 3 жыл бұрын

Explain it in detail what's inside the Coil.. I want to know

@yallhatebaadddyoung7356 5 жыл бұрын

Best info I’ve found good video

@HowtoAutomotive 5 жыл бұрын

Thank you!

@yallhatebaadddyoung7356 5 жыл бұрын

You just made it easy

@chibweevans1398 4 жыл бұрын

That's a good teaching.

@shabibajwa9816 5 жыл бұрын

Awesome very informative video

@HowtoAutomotive 5 жыл бұрын

Shabi Bajwa thank you and thank you for watching!

@bobcormier5098 2 жыл бұрын

Would of helped if you told us what year rave it is

@maocallejo1589 6 жыл бұрын

Nice video. What should be the resistance reading of the ignition coil? Cheers

@HowtoAutomotive 6 жыл бұрын

Mao Callejo unfortunately I don't have those type of specs memorized and I'm not anywhere near a computer for a while.

@TheKellisunshyne Жыл бұрын

@@HowtoAutomotive are you near one now?

@MrKatfishHimself 2 жыл бұрын

Does anyone know what to do with a cylinder 1 misfire detection on a 2011 Toyota Corolla?

@shabibajwa9816 5 жыл бұрын

Hi my car commodore vz v6, found cylinder 2 misfire for make sure I swap #2 with #4, than check again but still cylinder #2 misfired instead of cylinder #4. Please advise me Thanks

@charliethompson2338 4 жыл бұрын

I have the exact same issue. Did you figure it out

@nathanrice1796 2 жыл бұрын

How about including a pin diagram?

@happycat0411 9 ай бұрын

If you suspect the coils (BTW coils will go tend to go bad around the 250,000 km mark and you have a 4 cylinder engine, just replace the coils. Most 4 pack coils for 4 cylinder engines are less that $100 and that way you are good for another 250,000 km. Inspect the coils when you have them out and if you see tiny hairline cracks in the coil's shaft end, that indicates the coils are getting old and on their way out. Anther indication is the car's engine will begin to hesitate upon light acceleration and sometimes possibly stall

@Lifewithpets1234 Ай бұрын

I thought you didn't need special tools.

@jamieolson20 Жыл бұрын

Won't it damage computer or pcm unplugging coils while engine running 🤔

@kylebjalme9006 6 жыл бұрын

if the valve cover is leaking a slight amount of oil into the spark/ignition coil tube, would that effect the operation of the ignition coil?

@HowtoAutomotive 6 жыл бұрын

Kyle Bjalme over time it will affect how the coils operate. I would fix it as soon as you can.

@glorianica428 4 жыл бұрын

@@HowtoAutomotive mate, could you please help me,. I got a 2004 Camry & about 2 weeks ago, the car started normal, but shortly after the car jerk & a rotten egg smell with smoke occured, it also showed the check engine light, started the car again with some difficulty while accelerating; that is been the norm since then, sometimes it starts without accelerating, .I replaced the maf sensor, but still the car's rpm doesn't go over 3000 & it jerks with hesitation upon reaching it, what do you think it could be the problem & what scanner I should I use for your help & response thank you.

@colinknutsen 4 жыл бұрын

@@glorianica428hey not a mechanic but I hope I can help or draw attention to your problem. It sounds like it could be a fuel pump going bad just from my initial thoughts. You can check it at any auto parts store by asking them for a check engine diagnostic through the obdII port for free. Sorry your car is messing up mate.

@glorianica428 4 жыл бұрын

@@colinknutsen Thank you, for your time & input, blessings.

@gregrein6761 4 жыл бұрын

@@glorianica428 Catalytic converter

@ziaulhassan472 6 жыл бұрын

dear brother please teach us Car Ac wiring diagram

@patrickhabegger1262 4 жыл бұрын

Hello, What is the Diagnostic tool that you are using to read the engine? and how much does it cost? if Expensive is there a smaller home use version that does the same thing?

@HowtoAutomotive 4 жыл бұрын

Patrick Habegger this was a Autel scanner. More of a professional tool. For home use I would recommend The Autel AL319 it’s not very expensive. Here is an affiliate link for it amzn.to/2MAgRYy

@1800levso 6 жыл бұрын

my coils are good, but still getting p0303 cylinder 3 misfire message, I installed new spark plugs, and bought a new coil, tested and switched on each one, still getting misfire message, any ideas?

@HowtoAutomotive 6 жыл бұрын

oosveluzo levso Check compression and make sure there’s no a Engine problem. If that’s ok Test injectors next and if all of that is good check timing.

@1800levso 6 жыл бұрын

oh, thanks for the reply, I bought a noid light tester, surely cylinder 3 was not getting any pulse, then I though it was an electrical problem, I inspected all the wires, they were perfectly fine, I did a continuity test and something odd happened, the test I did was with everything off, I did the test on power for the fuel injectors and all 4 were good they got a continuity, ( I did the test by touching power cable from fuel injector, and ground or power on battery) I did the same to the 4 cables that connect the computer to the fuel injector, 3 of them had no continuity which is normal since everything is off, but the one from cylinder 3 had a continuity same as with power cable, so I though it must be touching a power cable, I did single cable continuity test from bad cylinder 3 cable, traced all the way back to the computer brown cable with gray dots where it connects to the computer , continuity was good, so I removed the cables from the computer and did the first test with the computer cable to battery (same like I did with power cables to battery), and the continuity was gone, it looks like inside the computer somehow there is a short or just the cylinder 3 connection is touching power, I opened the computer and everything looks perfectly fine almost like new, but this is beyond my knowledge I can't deal with tiny parts on the computer, I'm not sure if I should bring the computer or the whole car with computer to the dealer for a test, or just buy a computer from ebay and switch it to see if the problem will be gone. I can't go beyond this right now, I don't know what else could be.

@nobodyimportant8695 5 жыл бұрын

I had the same thing happen to me a while back, and it turned out it was a bad Fuel Inj#3 - I had it replaced and it fixed the problem. One of the most expensive problems on most older Toys is that the Fuel Injectors go pretty quickly. If one is at its end, be sure you can bet the rest will eventually follow. Best advice is when they have the shell cracked you should change them all at that time and possibly have them do the Gasket Seals also it'll save some money. Then you should be good for another 100k or so. My first failure is when my truck hit 218k Fuel Inj #5, At 249K Fuel Inj #3 went, then at 267K Fuel Inj #2 went and at that point I had Fuel Inj #1, 4, and 6 Replaced as well as my Valve cover gasket seals cuz they were leaking a little bit.

@beautybybruce6858 5 жыл бұрын

Hi i have the same problem 2006 corolla p0351 already replaced all the coils. same code. but I dont get any change when I remove either the coil connector or the fuel connector. I think its a wiring problem.

@beautybybruce6858 5 жыл бұрын

I bought a computer on ebay for 50.00 didn't help same problem

@garcia_2615 3 жыл бұрын

Hi I have a 2001 corolla with check engine light for a misfire in cylinder 1.switched all 4 spark plugs out with new ones and light is still on so I proceeded to pull every plug from the coil 1 by 1 but when I did that the car wouldn’t start for any plug. Any idea why it shows a misfire in cylinder 1 ?

@HowtoAutomotive 3 жыл бұрын

Alberto Garcia Take the ignition coil from one and swap it over from two and two to one. Now drive the car iif the misfire now switches to cylinder number two you know it’s the coil. If it still shows number one then I would do a compression test.

@velocity800 5 жыл бұрын

Hi please show me how to erase the igniter codes after pulling the coils for testing.

@HowtoAutomotive 5 жыл бұрын

velocity800 you need to use a code reader or scan tool to clear the codes.

@dennisakoglu2718 Жыл бұрын

The problem is theres no video how to change 2009 coil cables replacement

@pb08wale70 2 жыл бұрын

Hi I got Toyota estima 04 & git miss fire engine

@edgardoelona2949 3 жыл бұрын

Dear Sir. I have 2006 corolla manual type the problem the cylinder 1 and 2 not working but there is current from the coil. I tried to un- plug the coil form spark plug 1 the rpm not change and also #2. The #3 and #4 if you un plug the coil the rpm is going down. possible what cause this problem.Thanks

@souperdave2009 3 жыл бұрын

Spark plugs and or wires

@kiterpr 3 жыл бұрын

Yesssss!!!!!

@rusty358 2 жыл бұрын

You can check the signal from and to the computer with a multimeter that measures AC.

@markvermeulen1372 11 ай бұрын

I doubt that

@user-tr3oo8yr2s 3 жыл бұрын

hello guess please I have a camry 2.4 diagnostic error p0351 p0352 p0353 p0354 starts and stalls

@llugo9399 5 жыл бұрын

I have a p1310 code that stays in the same #3 cylinder even if swapping the coils. How would I change to wireing to the ignition coil? Or do you have to replace the whole wiring harness

@HowtoAutomotive 5 жыл бұрын

Leticia Lugo I’m not sure why you need to swap the wiring or what you mean by that? If you swapped the coil with out unplugging it then it would misfire on two cylinders.

@llugo9399 5 жыл бұрын

@@HowtoAutomotive i did the trick where you switch the ignition coils to see if that would be the cause of the code and that when you swap the coil the code would change from p1310 to like p1315 but mine has remained a p1310.

@llugo9399 5 жыл бұрын

The ignition coils are plugged in correctly as well

@Tarekaziz7642 5 жыл бұрын

@@llugo9399 Then you have to take a good look at your wires going to that coil. Usually they harden over time due to heat and breaks. Also check if the pins inside the wire harness are pushed out or having carbon built up.

@zueszues3178 5 жыл бұрын

I have a 2002 sequoia i replaced the spark plugs and ever since it seems like it want to turn off

@YungSteambuns 5 жыл бұрын

Did you get the correct brand/type? Denso or NGK And are your coils properly plugged in and seated?

@hasiburrahman7132 5 жыл бұрын

Can you give me toyots car circuit diagram.

@willlarrea7939 5 жыл бұрын

Great video, my 2012 Prius has a cylinder 1 misfire. How can I tell which cylinder Is which. Your input will be greatly appreciated. Again, thank you.

@HowtoAutomotive 5 жыл бұрын

Will Larrea on your Prius the cylinder closest to the drive belts it’s going to be cylinder number one. Then they go in order 2,3,4

@willlarrea7939 5 жыл бұрын

@@HowtoAutomotive thank you so much for your prompt response

@HowtoAutomotive 5 жыл бұрын

Will Larrea thank you for watching!

@kajkool007 4 жыл бұрын

Nice

@joed8016 6 жыл бұрын

Can u check the coil itself with a multi meter. Just bought 4 Bosch coils n still lugging n studdering

@HowtoAutomotive 6 жыл бұрын

joe d If you tried the simple stuff and it still misfiring you may wanna look into a lab scope. Also don’t forget to check the basic stuff like compression timing.

@sirsweetness8332 5 жыл бұрын

joe d If you have a Toyota, use Denso parts. These are OEM. Many Toyota models will not communicate with other aftermarket brands. I experienced this before. Also Denso is more reliable and is generally cheaper than Bosch.

@MC-mh2ju Жыл бұрын

DENSO for life!!!!!

@chizki1 Жыл бұрын

Isnt suposed to be disconect each coil & the that makes the engine to shot down / stutter is the bad coil ?

@johnryall815 5 ай бұрын

@24hourgmtchannel64 Жыл бұрын

My wifes 1999 Lexus RX300 is getting a P0304 and I installing a new one still didn't resolve. My diagram shows the second wire from the 12v power as the 5v ecm signal wire which I get 5v with the key on. Even though this is showing 5v it doesn't further diagnose the lack of signal which for that I'd meed an oscilloscope. I know my wife loves her suv but a 390k I think its time. We;ve had it since 2008. Would still like to solve this issue though.

@chestonanderson 3 жыл бұрын

I got power signal low ref and ground no spark on any plugs what could cause that 🤯🤪 it's a 08 DTS

@HowtoAutomotive 3 жыл бұрын

Check for crank signal. The computer will not operate the coils without a crank sensor. Or the injectors

@chestonanderson 3 жыл бұрын

@@HowtoAutomotive yeah I got signal to coils when cranking 🤯 so that pretty much means I got cam and crank signal I have changed both of those

@latomyamarleu5671 Жыл бұрын

But what makes a car misfire

@blakejones6648 4 жыл бұрын

2:45

@russwilkinson5483 4 жыл бұрын

The original equipment is Denso on a Toyota.

@carlosquiahua1614 Жыл бұрын

Where did you buy the orange plug adopted

@gtrr3246 Жыл бұрын

The average Joe does not have those high-tech scanner. So much for the average person lol

@ryangardner1577 3 жыл бұрын

Just buy new ones and replace at $100, by the.vtime u buy s and ark tester, your 1/4 int cost.

@calvinma9493 5 жыл бұрын

+How to Automotive Should I worry if one of the bolts doesn't tie down the coils all the way since i probably stripped it? The bolts I am talking about is in time 1:05 of the video.

@HowtoAutomotive 5 жыл бұрын

Calvin Mahk Most likely will not but there’s a possibility of the coil lifting up and that will cause a misfire. You may want to run a tap in it in or put a shorter bolt

@calvinma9493 5 жыл бұрын

ok Thanks for the fast reply!

@robbiesantos7677 6 жыл бұрын

Why did you replace all 4 coils ?

@billymurrell6761 6 жыл бұрын

Robbie Santos

@sirsweetness8332 5 жыл бұрын

Denso parts on a Toyota. NOT Bosch. Some ECU’s will not communicate with some brands. Toyotas are one of these

@Treaxvour 4 жыл бұрын

When I unplugged them , the car just shut off

@Johonavich49 4 жыл бұрын

No scan tool.

@DougHinVA 4 жыл бұрын

they are at Northern Tool for about $35 new...

@alfredcastro8822 2 жыл бұрын

VW= Bosch. Toyota= Denso. There is a reason why factory parts are expensive. Factory parts work the best.

@AaronHarkonnen Жыл бұрын

I mean of course he said bosch they sponsored it....

@MeluckyIndian 2 жыл бұрын

I only have $1,000 computer to check if the coil is bad but I'm (low tech).

@Meleeman011 3 жыл бұрын

couldn't i just use a multi meter?

@HowtoAutomotive 3 жыл бұрын

Yes and a lab scope. There’s multiple ways to go about it.

@joeeoj6187 9 ай бұрын

Of course it’s a Land cruiser 😂

@firstlast1732 3 жыл бұрын

Didn’t show how to test it really

@beansoup6056 5 жыл бұрын

My car doesn't start or turn over so your videos no good for me

@DougHinVA 3 жыл бұрын

sorry, but his explanation is too complicated for a normal person.

@zulfishoro1447 6 жыл бұрын

Sir my car Toyota corolla xli 2011 model have a problem' few minutes run engine then auto off engine. what is the problem sir how can I fix it?

@HowtoAutomotive 6 жыл бұрын

Zulfi Shoro it could be a lot of things. I would start by pulling codes with a scan Tool

@zulfishoro1447 6 жыл бұрын

How to Automotive OK sir thanks for further detail thanks.