Idling/Throttle Issue
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Joined: Jan 2014
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2004 E55 AMG
Idling/Throttle Issue
I have a 2004 E55 AMG that I recently pulled the ecu out to have it tuned.
After putting it back in (and checking connectors multiple times) I am having an issue with the car idling and not responding to the accelerator pedal at all. This could be a complete coincidence, and something could have failed at the same time, however I still want to give some background as the car has basically set while I waited on the ecu to come back.
When I start the car now it surges and idles very roughly, and does not respond the the gas pedal at all. There is also an ESP warning light constantly present on the display.
At first I thought it was the throttle body sticking open (as suggested by the ever helpful Philip Bulderbergs of EC) which I found to be true at first, but once it was unstuck it has not become stuck again, and I am still having the same/similar issue.
Any thoughts or suggestions? I am working on getting a copy of STAR DAS so I can get more info, but I would still really appreciate any helpful feedback in the meantime
Thanks in advance!
After putting it back in (and checking connectors multiple times) I am having an issue with the car idling and not responding to the accelerator pedal at all. This could be a complete coincidence, and something could have failed at the same time, however I still want to give some background as the car has basically set while I waited on the ecu to come back.
When I start the car now it surges and idles very roughly, and does not respond the the gas pedal at all. There is also an ESP warning light constantly present on the display.
At first I thought it was the throttle body sticking open (as suggested by the ever helpful Philip Bulderbergs of EC) which I found to be true at first, but once it was unstuck it has not become stuck again, and I am still having the same/similar issue.
Any thoughts or suggestions? I am working on getting a copy of STAR DAS so I can get more info, but I would still really appreciate any helpful feedback in the meantime
Thanks in advance!
Last edited by Meesha; Sep 19, 2015 at 11:30 PM.
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Joined: Oct 2011
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From: A to the Z (the state)
'06 E55
Have you disconnected and reconnected the ECU again?
You can try the throttle body reset:
1. Clear ECU with scan tool
2. Unplug throttle body
3. Turn key to position 2 and wait 20 seconds.
4. Turn key to position 1 and plug in throttle body.
5. Turn key to position 2 and wait 3 minutes.
6. Start car from position 2 (don't key off first).
You can try the throttle body reset:
1. Clear ECU with scan tool
2. Unplug throttle body
3. Turn key to position 2 and wait 20 seconds.
4. Turn key to position 1 and plug in throttle body.
5. Turn key to position 2 and wait 3 minutes.
6. Start car from position 2 (don't key off first).
