maclem8223

Mine was bad and I just switched it out the car is running fine now but the check engine light is still flashing. Will it just clear itself or is there a way for me to clear it without a vag??? Thanks in advance.

Nate (ETKA+Scumbag)

No, it means you might still have another problem.

maclem8223

The only clues I had was the rough idle and stuttering?

Nate (ETKA+Scumbag)

You should never replace parts on a whim without first checking for fault codes. That's basic troubleshooting 101.

The exception to that is if the part cannot be monitored by the ECM, e.g. something purely mechanical. However, in your case the part is being monitored and replacement should have come only after diagnostics.

maclem8223

Did the DIY for the ICU and came up with open loop on cylinder 4 the other three were fine...

Nate (ETKA+Scumbag)

That's odd, because typically it's #2. You still need a VAG-COM to see what it's complaining about.

maclem8223

here's the deal I'm stationed in 29 palms, ca in the middle of nowhere I'm going to drive down to newport beach this afternoon. It's about a half hour mike at purems so I'll hit him up on tuesday for the vag and see what else might be going on. I thought it was normaly #2 as well but they all held around 300 ohms except for #4 nothing at all.

audinutt

Change your plugs it might be fouled on #4 now. flashing CEL= misfires most of the time