CAR WILL MISS FIRE AND CODE ON COLD START.ONCE IT WARMS A LITTLE IT RUNS PREFECT.

2000 Volkswagen Jetta

Tiny

lprice

March, 19, 2012 AT 2:24 PM

Cleaned injectors, replace plugs and coil packs, check for vac. Links ect.

FOUND 2123 RELATED QUESTIONS

Mis Fire -

17 ANSWERS
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9 Answers

Tiny

rivermikerat

March, 19, 2012 AT 5:31 PM

What code(s)?

Tiny

lprice

March, 19, 2012 AT 8:08 PM

The code is a misfire code on #3 cyl.

Tiny

rivermikerat

March, 19, 2012 AT 8:32 PM

Check wiring to the coil pack. Swap the coil packs around. Check compression. Check fuel pressure during cold start.

Tiny

lprice

March, 19, 2012 AT 10:34 PM

Did all that compression good

Tiny

rivermikerat

March, 19, 2012 AT 11:18 PM

What about fuel pressure? Have you checked the injector to see if it's pulsing properly?

Tiny

lprice

March, 20, 2012 AT 1:16 AM

Replace fuel filter and # 3 injector and all is dong well. The presser is good. Just thought you have heard of this problem before and found some off the wall thing going on with it. It just does it at cold start. With in a few mins. It clears out and run like new.

Tiny

rivermikerat

March, 20, 2012 AT 2:43 AM

Nope. What size engine does it have?

Tiny

lprice

March, 20, 2012 AT 10:33 AM

1.8t

Tiny

rivermikerat

March, 20, 2012 AT 11:04 PM

One idea would be to take it to a shop that has the special VW scanner and either scans live data for free, or doesn't charge much to do so. Live data will show what's going on when the code is set.

You said you'd swapped the coil packs around. What happened when you did that? Did the misfire code follow the coil pack, or stay on #3?

Have you checked the injectors and coils with a noid light to watch how they're pulsed?

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