MBWorld.org Forums - Any ideas what can cause ignition timing retard? w210 amg E55

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vasil_r19

11-07-2013 04:04 PM

Any ideas what can cause ignition timing retard? w210 amg E55

Hello everyone. I have very strange problem with my car. Something is telling my ecu to retard timing even when the car is at idle.
The car has no fault codes in memory.
Here are my engine data readings.
MAF at WOT - 950kg/h
Ignition advance at WOT 19-20*
Ignition advance at idle 7-9*

I checked the ignition advance of few other cars with same engine and all of them show
Ingition advance at WOT 27-29*
ignition advance at idle - 14-15*

Mep_q8

03-18-2014 08:48 PM

Check ur dtcs.. Might either be a faulty IAT sensor or Knock Sensor.. Those usually keep the vehicle on the low octane tables just to be sure..

Exotic-metal55

07-09-2014 04:18 PM

Quote:

Originally Posted by Mep_q8 (Post 5978051)

Check ur dtcs.. Might either be a faulty IAT sensor or Knock Sensor.. Those usually keep the vehicle on the low octane tables just to be sure..

Ditto .

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