Join Date: Feb 2011
Location: United Kingdom
County: Rhondda Cynon Taff
Accelerator Pedal Woes
been having some real trouble with my 156 recently, and it's starting to seriously p*** me off.
It's a 2.0JTS, and a few weeks ago started hesitating under acceleration. This would be closely followed by a MCSF message, which my code reader tells me is "Throttle pedal position sensor A circuit". After speaking to a couple of people I found that this means the throttle pot is faulty, and this is a common problem on 156's. After the message appears, the engine goes into a sort of low power mode, and although the car still drives, it's painfully slow. i can erase the code with my reader, and the car returns to normal, and may be ok for 100 yards or 20 miles but it always comes back.
I replaced the pedal/sensor assembly with a salvage part bought from a well known Alfa breaker, and it cured the problem for a day or 2, but then it came back. I just replaced the pedal again with a brand new one from AR, and guess what, 2 days later and here we go again!!!
I'm not spending any more money on it till i know what's really wrong with it. Effing thing.
Thanks in advance,