Please help! Have a trouble with revs & idle ! - Alfa Romeo Forum
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Help Please help! Have a trouble with revs & idle !

Hi, Everyone!
Alfa 156, 1.8 TS
Didnít drop down revs when I switch from first to second gear, and very bad idle when itís cold, they starts fine but after few seconds make a trouble, sound like only 2 or 3 cylinders working and than after about 1 min fine.
Someone have any idea?

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Could be a number of things. I had a similar problem and it turned out to be a coil pack. It could also be one of a number of sensors as well. Such as a crank or a lamda sensor. I diagnostic check should identify the problem either way.
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Try resetting the throttle:

Without touching the throttle pedal through the process:

1) Turn on ignition for 90 secs
2) Turn off for 90 secs
3) Start engine and leave to idle for about 5 mins ... it will fluctuate and then should settle down to around 850rpm.

Stop, restart and take for a run.

It's often the Idle Actuator on the side if the throttle body (not helped if throttle is opened by hand), lambda or MAF.

Last edited by gazza82; 21-08-09 at 15:18.
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Thanks! I change the MAF works good

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idle , revs , trouble

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