Nigelhobbs

Smart 450 no accelerator

2 posts in this topic

Hi all just joined up to this.  But going to ask some help 

just done a complete rebuild on a 600 engine. 2002 car  after it had burnt a valve out  , before the strip down engine would run ,accelerate ,and drive the car although it was running on 2 cylinders  .

completed rebuild and put it back into the car  .she started up quite well after a few turns on the starter  It ticks over really nice and has run up to temperature on idle speed  ,I never rev an engine till it’s run at idle power for a while , problem is I have no acceleration  the gas pedal is not responsive. To rev the engine. The car goes into gear 1 and reverse while in gear pressing the accelerator pedal makes the car try to move ie the clutch is getting a signal from the gas pedal  

I have tried diagnostics with DS125 Delphi cars  I am getting fault code P0120 throttle circuit A  fault  .Removed the throttle actuator and cleaned it measured resistance on it and i get good readings as I move the gear  

I’ve checked all the connectors are on thier sensors around the engine  the only thing I question is the alternator  for some reason when I got the car as a non runner the alternator belt had been removed  I’ve read some stuff about replacing an alternator can chuck up a fault with the throttle 

Any help on this very much appreciated  

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