156 warning sign - Alfa Romeo Forum
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Wave 156 warning sign


few times i noticed that a red symbol pops up on the rev counter dialogue. it loated on the end of the rev counter number, it looks like a spark plug.

it came on few times, i did notice that my power was little less. before my rev counter reches for exampl 3, and hits i think 60 or 70 miles speed.
but then when that light is on, its drops rev count by half or a whole digit.

any ideas, anyone
punish9200 is offline  
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156 1.9 JTD

Not an expert but I had it on my old 2.4jtd and it was the throttle position switch
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sounds like throttle position sensor - this could either be the throttle body or the accelerator peddle. I assume your 156 is post 2000 and therefore has drive by wire. Diagnostics will confirm the problem but mine was sadly the throttle body. You can try resetting the throttle position sensor and I believe the method is as follows
Turn the ignition to MAR 2 for 10 minutes
then turn the ignition off for 2 minutes
start the engine and let it idle for 10 minutes
The take it for a run ensuring that you use the full range of throttle travel
If this is not correct then someone can correct me on the procedure
alfa amore is offline  
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Throttle and ecu reset here;


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156 , sign , warning

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