What those code mean - Alfa Romeo Forum
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(Post Link) post #1 of 2 Old 04-03-13 Thread Starter
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Join Date: Jan 2013
Location: Australia
County: New South Wales
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Alfa 156

Wave What those code mean

I have intermittent problem with my Alfa 156 MY2001 whereby accelerator stops to respond while engine is still idling. When I switch engine off and on works normal.
Took it to the local mechanic's computer and t hree codes were found:
1. P1653 intermittent - Camshaft position regulation.
2. 1691 intermittent - Please refer to relevant technical manual
3. 3c86 intermittent - Please refer to relevant technical manual

He recommended Cam Position Sensor to be replaced but did not know what are other two codes.
Can someone please help with the above codes.
Lale is offline  
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I would be looking at the throttle potentiometer at the pedal. The car in 2001 is Fly by Wire (I think).

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