My '99 A4 2.8L 30V wouldn't run this morning. It started, but idled extremely rough and wouldn't stay running. I bought a basic scan tool, and got the P1237 through P1242 codes, which equal "Fuel Inj.Circ. Open Circ.".

I really doubt all six injectors went bad instantly, overnight. The car ran fine yesterday. What could be my problem?

 

Remove a injector connector & see if there is a power supply with the key on.

 

im having the same problem with my 1994 90 series? but my maf sensor is all messed up i got a new one n cut the clip off cuz i thought it was bad but now i cant remember how to wire it back in is the a wiring diagram anyone would know of?

 

I didn't have the time to mess with it myself, but I did just pick it up from my mechanic.

Strange problem, turned out to be fouled spark plugs, bad enough to cause the constant misfiring. Injectors dumped a bunch a fuel which flooded the engine, explaining why I couldn't get it running after it happened. Cleaned up the plugs and now it's running fine, no CEL. I don't know why the car didn't throw any misfire codes, but I wasn't checking with a vag-com. Maybe I missed it.

 

Glad you got it fixed!

Thanks for posting the resolution of your problem.