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Please help, misfire on cylinders 3 and 4. What do I do??

TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

Please help, misfire on cylinders 3 and 4. What do I do??

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Old

Aug 8, 2006 | 08:19 PM

#1

Bonefish

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Please help, misfire on cylinders 3 and 4. What do I do??

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Old

Aug 8, 2006 | 08:35 PM

#2

JohnLZ7W

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ummm, swap coilpacks from #3 and #4 to #1 and #2

if problem stays at cylinder #3 and #4 replace the spark plugs, if it moves to #1 and #2 replace the coilpacks. That's what I would try.

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Old

Aug 8, 2006 | 08:40 PM

#3

Bonefish

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Re: Please help, misfire on cylinders 3 and 4. What do I do??

cleaned filter and recharged with K&N cleaning kit. Then check engine lite goes on. cleaned out MAF and lite still on. I got frustrated and went to pep boys and got me one of those actron code reader thngs for oboII and found out that it was the MAF. Went to go check on it again tonight and played around with the Actron and cleared the code to. Then i noticed that the idle was alittle rough, so i tried the actron reader and found 3 codes 1) 0300, misfire 2) 0303 misfire on cylinder3 3) 0304 misfire on cylinder 4. That the hell is going on. I did a search on it could I have a bad coil pack? I never replaced one so am I due for changing it? I have APR 93 octane 100 octane chip that has been in there for about a year. Please give me some advice on this. Thanks in advance

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Old

Aug 8, 2006 | 08:42 PM

#4

Bonefish

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ok ill try that, seems simple enough.

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Old

Aug 9, 2006 | 05:44 AM

#5

kodeTT

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if its a coilpack...it would be very obvious and difficult to drive the car...

you shouldn't drive it far as it could damage your cat and then you'll have a bigger price to pay for repairs.

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Old

Aug 9, 2006 | 09:48 AM

#6

l33tt

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Unfortunately

Some coil paks only fail under load. I had a random misfire when boost was > 20 psi that was solved by replacing a coil pak, but in normal driving, everything seemed fine.

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Old

Aug 9, 2006 | 12:39 PM

#7

Bonefish

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Thanks everyone for your knowledge and advice, I found out the root of the problem

I recleaned the MAF and all is fine.

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