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Discussion Starter · #1 ·
Only this morning has my R32 started misfiring again. sounds sick and out of timing when idling at the lights. when I put my foot down it sounds even worse.

I had a problem with one of the coilpacks a few months back. VW replaced it and the misfiring went away. Good as new!

I presumed this was the case now but I've taken out all 6 coilpacks but they all look fine to me (an untrained eye). nothing looks damaged or broken

I havent hit anything in the current snowy conditions but I have been skidding and sliding everywhere. unless i did some damage by doing that? But I doubt it....

I dont have time to visit a garage as I fly home for Christmas early tomorrow morning.

Any suggestions where to try next?
 

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The coilpacks wont be visibly damaged but internally damaged. Get a diagnostic scan and it will tell you whats up. Hope all can be sorted for you.

Peter
 

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Or if you dont have a scanner, simply open the bonnet (with the engine running) and disconnect the wiring plug from the first coil pack...

If there is a change in the engine noise/note, then re-connect it as you know that coil pack is working. If you find that after disconnecting a specific plug that the engine does not change, then thats the faulty pack [y]

Of course it may also possible be a different fault all together...

Luke
 

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Heres the trick... if you can get to them? disconnect the Injector plugs individually to determine which cylinder the misfire is on? once youve found that out....switch the coil pack over to another cylinder...then repeat the process, if the misfire follows the coilpack to the cylinder you changed it to, it can only be the coil pack! if it stays with the first cylinder its either the plug, injector ...or alot of exspense :p. Good luck mate!
 

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Heres the trick... if you can get to them? disconnect the Injector plugs individually to determine which cylinder the misfire is on? once youve found that out....switch the coil pack over to another cylinder...then repeat the process, if the misfire follows the coilpack to the cylinder you changed it to, it can only be the coil pack! if it stays with the first cylinder its either the plug, injector ...or alot of exspense :p. Good luck mate!
Same difference as disconnecting the coil packs one by one then do like you said swap a faulty one over with the cylinder next to it to see if the fault moves cylinders or not.
 

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Heres the trick... if you can get to them? disconnect the Injector plugs individually to determine which cylinder the misfire is on? once youve found that out....switch the coil pack over to another cylinder...then repeat the process, if the misfire follows the coilpack to the cylinder you changed it to, it can only be the coil pack! if it stays with the first cylinder its either the plug, injector ...or alot of exspense :p. Good luck mate!
Same difference as disconnecting the coil packs one by one then do like you said swap a faulty one over with the cylinder next to it to see if the fault moves cylinders or not.
I have in the past been disconnecting the coil packs with the engine at runnin temp...warm enough to ignite the air/fuel without the spark :| so if in doubt injectors...
 

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Huh?! Air/fuel needs a spark to ignite. Its not a diesel you know.

Peter
well thats what i thought lol, until i got mugged of by a little 4 cylinder(forget what make the car was), i unplugged the coil packs one by one with no difference? but then when i stopped the fuel i could notice the difference! so surely the air/fuel was igniting without the spark? you tell me lol.

Tom
 

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my mates an mechanic. he put a handheld fault finder on it and it came back with an fault with a coolant temp sensor.
I've had one of them go, cost about £30 to fix. Just felt sluggish and threw the engine management light on.

Make sure you get the upgraded green one [Y]
 

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Discussion Starter · #18 ·
my mates an mechanic. he put a handheld fault finder on it and it came back with an fault with a coolant temp sensor.
I've had one of them go, cost about £30 to fix. Just felt sluggish and threw the engine management light on.

Make sure you get the upgraded green one
I've mentioned that to him, thanks. hes getting it today for me fingers crossed! My flight back to Newcastle was cancelled til tomorrow, meaning I'm around today to hopefully sort it out.
 

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Discussion Starter · #20 ·
my mates an mechanic. he put a handheld fault finder on it and it came back with an fault with a coolant temp sensor.
I've had one of them go, cost about £30 to fix. Just felt sluggish and threw the engine management light on.

Make sure you get the upgraded green one
i spoke to a main dealer. he said the 4 pin green is for the mk4 and the 2 pin grey is for the mk5. I got the wrong one!!! Doh!
 
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