SL/R230: Help with fault codes
Thread Starter
Junior Member
Joined: Nov 2005
Posts: 28
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Help with fault codes
2007 SL550 w/68000 miles. Can't get it inspected for fault codes. To start with, it threw fault for O2 sensor. Replaced with Bosch from Advance. After that it threw P0228,P0443,P0447, and P1337. Now it won't even communicate with the North Carolina computer system for inspection. It is hard for me to believe that all these things happened at once. Can anybody tell me what I should do?
Thanks.
Thanks.
Newbie
Joined: May 2007
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I've had similar issues on my 05 CDI but no check engine light. I tracked it back to the EGR valve. I would have no boost or kick down. I had no interest in replacing the EGR valve so I bought a Green diesel engineering tune that took the EGR out of the picture. Now I have more power and better fuel economy with no soot emitted after kick down.
Not sure if this is your issue but it would be worth looking at.
Not sure if this is your issue but it would be worth looking at.
Last edited by REXY WAGON; Sep 18, 2017 at 08:09 PM.
Thread Starter
Junior Member
Joined: Nov 2005
Posts: 28
Likes: 1
What the mechanic told me:
P0228-Throttle/Pedal position sensor/switch C circuit high input
P0443-Evaporative Emission Control System purge control valve circuit malfunction
P0447-Evaporative Emission control system vent control circuit open
P1337Faulty Engine control module,ECM harness open or shorted,ECM circuit poor electrical connection
Does any of this sound like it could be a problem? How would be the best way to straighten it out?
Any help would be greatly appreciated. Sorry I did not get back to you right away. I have been traveling.
P0228-Throttle/Pedal position sensor/switch C circuit high input
P0443-Evaporative Emission Control System purge control valve circuit malfunction
P0447-Evaporative Emission control system vent control circuit open
P1337Faulty Engine control module,ECM harness open or shorted,ECM circuit poor electrical connection
Does any of this sound like it could be a problem? How would be the best way to straighten it out?
Any help would be greatly appreciated. Sorry I did not get back to you right away. I have been traveling.
