This video shows you the method I used to determine the problem causing the misfires in my b5 Audi s4.
Spark Plug Torque Spec: 22 ft.-lbs = 29.8 Nm (newton-meters for all you Americans out there)
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Matt
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Wouldn't a bad icm throw a code for multiple cylinder bank entirely?
Super Helpful video… I like to know what my problems could be before I call the mechanic. This way i can tell if they are being honest. This is a great troubleshooting technique, if it wasn't below freezing outside i'd do these tests myself. Fortunately my mechanic has been super honest and fair. Thanks again.
I have a 2002 audi a6 Quattro 2.7t Automatic
I started off with 2 codes and no check engine light I ran the computer, It was the Torque converter and a #2 Cylinder misfire. I could feel it kicking while driving so I replaced the spark plugs,checked the cylinder pressure with the tool it was at 130 supposed to be at 140 if correct my mechanic said it was fine , I gaped them all at 0.28 Torqued them all to 22lb. I Checked the coil packs and boots, They looked fine to me so I didn't replace those. The 2 codes went away, but when i was idling I can still feel a little kick every now and then, hmm?? After that..
No check engine light
No codes pop up I drove it 50 miles+ before I ran the computer with the diagnostic scanner.
The car is in limp mode
PRNDS light stay on don't flash
When I start the car the PRNDS works in Drive if I put it there first but if I put it in Reverse after starting it up it goes striaght to limp mode again, because when I start it up and put the shifter straight to drive it will work for a little before it goes back in limp mode It first started with the tip tronic before any of the codes started now its in limp mode With the PRNDS all in red?? Any help or advise on where to start I try to do the work I can myself.
The Yellow coolant light is the center LCD screen were the service indicator is located in the center of the dash.
I'm pretty sure I have a leak in the coolant resavor. I can see the build up next to the front hose connected to the coolant resavor, and the yellow oil light indicater. For that one I think its the oil senser??
Any help for my situation will be much appreciated thank you.
Good video bro I have a c5 a6 2.7t with the o1e 6spd
It looks like I labeled the cylinders incorrectly – The cylinder layout is:
Back
3 6
2 5
1 4
Front