Hi Gang,
A have an issue with my s54 / e30 swap. I put a new fresh motor into the car and it has sat for the last 2 years while work and family commitments got in the way.
#1 no start - on occasion (intermittent) the ITBs do not cycle at startup when power and ignition circuits are energized (this results in a no start). This can be remedied by unplugging and re plugging the TPS at the front of the engine. Effectively if I see the ITBs cycle the car fires right up, if it doesn't than the car will just crank.
#2 engine when running has a high idle. Approx 1300rpm
I scanned and got the following codes:
0121 - throttle / pedal position A - circuit range perm problem
0123 - throttle / pedal position A - circuit high
1637 - throttle valve position control
0444 - evaporate emissions purge control open
I cleared the codes and have subsequently checked both TPSs and the pedal and they all test fine across all pins. Only thing I did notice is that one of the voltage pins on the pedal (pin 5 or 3) which should show 5v shows 4v. This is with the pedal unplugged and comes direct from the ECU IIRC.
Although I haven't put any miles on the car since clearing I have started and shut down a number of times and the codes have not returned but the conditions described are still present.
Any ideas? Thank you
AK
A have an issue with my s54 / e30 swap. I put a new fresh motor into the car and it has sat for the last 2 years while work and family commitments got in the way.
#1 no start - on occasion (intermittent) the ITBs do not cycle at startup when power and ignition circuits are energized (this results in a no start). This can be remedied by unplugging and re plugging the TPS at the front of the engine. Effectively if I see the ITBs cycle the car fires right up, if it doesn't than the car will just crank.
#2 engine when running has a high idle. Approx 1300rpm
I scanned and got the following codes:
0121 - throttle / pedal position A - circuit range perm problem
0123 - throttle / pedal position A - circuit high
1637 - throttle valve position control
0444 - evaporate emissions purge control open
I cleared the codes and have subsequently checked both TPSs and the pedal and they all test fine across all pins. Only thing I did notice is that one of the voltage pins on the pedal (pin 5 or 3) which should show 5v shows 4v. This is with the pedal unplugged and comes direct from the ECU IIRC.
Although I haven't put any miles on the car since clearing I have started and shut down a number of times and the codes have not returned but the conditions described are still present.
Any ideas? Thank you
AK
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