View Full Version : HELP!! Rough idle blinking CEL.. car still runs but like sh*t

05-25-2007, 08:06 PM
I was drving normal and all the sudden my car bogged down and almost complete loss of power and my CEL starts to blink so i immediatley limp to the side of the road and turn off the car..
I pulled code P1612 Electronic Control Module Incorrect Coding... I already stfa but didnt get a clear answer as to what is causing my car to idle hard while having a blinking CEL...
I already checked my TIP, boost lines, airbox and my intake mani hoses and everything was secure...I also unplugged my ecu and nothing.. Only thing I havent been able to check was the pipe that connects to the DV and runs in front of the car that goes across to the SMIC...
Anybody have an idea on what it could be? Its a 2001 1.8T


05-25-2007, 08:37 PM
I really have no idea on what it could be rough idle smell of gas out out of my exhaust and my car sounds like a subaru sti blinking CEL..

05-25-2007, 08:42 PM
It's a coil pack. Very common for 01's.

05-25-2007, 08:45 PM
My buddy had a brand new coilpack so I called him up and I installed it in my car and the misfire code went away.. I also took the plug out of cylinder 2 and swapped with 1 just to be sure and there was no more code all i got was p1612 Electronic Control Module Incorrect Coding

05-25-2007, 09:04 PM
blinking check engine lights are bad

05-25-2007, 09:17 PM
I know thats y I immediately pulled to the shoulder

05-25-2007, 10:33 PM
Fuckin A...


05-26-2007, 09:56 AM
Fuckin A...


01's do not have ICM's.

05-26-2007, 10:29 AM
change ur spark plugs also. i change mine every 5k miles or every 3k when i do an oil change.

05-26-2007, 10:36 AM
all i got was p1612 Electronic Control Module Incorrect Coding

P1612 really means that the ECU has a value programmed that does not match the spec of the car.

The ECU coding is a 5 digit code that must be entered in VAG-COM.

Here is the list of the code digits:

Country (first 2 digits) - 16 (USA ULEV emissions)

Drivetrain (third digit, choose one of these) - 0=FWD w/ABS, 2=AWD w/ABS, 5=FWD w/ ASR/ESP, 7=AWD w/ ESP.

Tranny (fourth digit, choose one) - 0=Manual, 5=Automatic

Vehicle Model (fifth digit) - 1 (Audi A4, only choice)

So, if you had a USA car with AWD, ABS and manual tranny, you'd enter 16201.

Check your coding and make sure it matches your car's features.

05-26-2007, 11:02 AM
Thank you guys so much My plugs are brand new I changed them a week a ago. But i will check to see if they are fouled. Anybody know off the top of their heads where I can find a spark plug color chart?

thanks a bunch guys

05-26-2007, 11:33 AM
Anybody know off the top of their heads where I can find a spark plug color chart?

thanks a bunch guys

Color chart? What's that?

05-26-2007, 11:55 AM
maybe he's talking about a chart comparing the electrode colors after use?

05-26-2007, 12:20 PM
thanks guys for all your help.. As for the color chart I was referring to what a spark plug is suppose to look like when it is fouled/ running rich/ too lean.. Ill just keep searching sux that the zine crashed im having to do most of my research at the world and I hate trying to read there forums

05-26-2007, 12:41 PM
This should be what you're looking for:


05-26-2007, 03:38 PM
First of all daft you ARE THE MAN It turns out that it was actually the coilpacks.. I have no idea how it didnt work in the first attempt... Totally beyond me. But with a little vag com magic, things are back in order. thank you daft for helping me great responses from a couple great guys