Got a P1689 today. Started car, stuttered, tapped throttle and the car continued to stutter.

05 R53
Catback
17%
550cc injectors
Intake
plugs, wires n coil pack.

Tuned by RMW on Helix's dyno.

When I got the car home after a few days I noticed when it first started up sometimes I would have to tap the throttle pedal to get it to idle correctly (in this case ~1000 rpm).

Any ideas on this? Would like to get it fixed ASAP so the car doesnt randomly go into limp mode.

Does anyone have Jan's email? Thanks everyone.

 

Cant help with the issue, but Jan's email is on this website.
www.revolutionmini.com

 

started the car this morning. rough idle. not happy. almost stuttered to a stall but i tapped the throttle to keep it alive. going to see if I can clean the throttle body at work today.

Also check engine light is out.

 

Apparently the code is something to do with throttle control and just needs to be cleared out of the computer. If that doesn't fix it, then it sounds like perhaps a vacuum line is unplugged or cracked somewhere.