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Old 04-22-2008   #13 (permalink)
thepaintballguy
Water Injection
 
Join Date: Apr 2008
Posts: 15
Default Re: Audi S4 Misfire Issues. REALLY confused

OK so just to make it easier on everyone here is a list of everything I have tried with the outcome of each test:

1. Checked W/M check valve - clean, still having misfire problems.
2. Completely disconnected the W/M kit - still having misfire problems.
3. Switched Coilpacks around - still have misfire problems on same cylinders. Did not follow coilpacks.
4. Pulled and tested the ICM's - both are good (according to the test) and still have misfire problems.
5. Swapped ICM's - still misfiring on same cylinders
6. Swapped spark plugs around to see if misfires follow them - no go, misfires still on same cylinders as before.
7. Replaced all the spark plugs with new ones - still having misfires on same cylinders
8. Pressure test - could not find anything leaking. Still having misfires.
9. Visually inspected all all the vac lines - could not find anything. Still misfires.

I am pretty sure thats it.

Here is my list of what I am going to try again today when I get off work:

1. Disconnect the wire from the MAP sensor that goes to the W/M kit and see what happens.
2. Compression Test (If this fails I will be ROYALLY PISSED!!!!!)
3. Spray down the engine with soapy water and re-try the pressure test.
4. Check all fuses that have to do with fueling... I will probably check them all anyways.
5. Throw a freaking wrench.
6. Have it towed to a buddies shop and see if a fresh set of eyes can find anything.

If anyone has any other ideas of stuff for me to try please please please LMK. I am getting desperate.

Josh
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