o2 heater code problem.
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Joined: Apr 2014
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Amg e55
o2 heater code problem.
The problem started after deleting the cats and it started throwing the check engine light. They were spaced first, which still threw the code. Second some simulators were installed. The o2 side harness was cut and soldered to the simulators. Some small 2 inch extentions were added. At this point is when it started throwing po412 (secondary air injection switching valve a circuit), po448 (evaporative emission system vent control circuit shorted), po458 (evaporative emission system purge control valve circuit low), po135 (oxygen sensor heater bank 1 sensor 1), po155 (oxygen sensor heater circuit bank 2 sensor 1). It was actually still throwing the o2 codes also, so i removed the simulators and extensions and put it back to normal.
At this point the ecu was sent to kleeman to have the rear o2s removed. Now it throws all the same codes, minus the rear o2 codes. Still throwing all the codes above. The only thing I can think of is soldering the 02 wires damaged something or is not reading right. Ive read about a fuse 19 in the ml350, but its a no go in this amg e55. no fuse in that slot. Thanks for any help.
At this point the ecu was sent to kleeman to have the rear o2s removed. Now it throws all the same codes, minus the rear o2 codes. Still throwing all the codes above. The only thing I can think of is soldering the 02 wires damaged something or is not reading right. Ive read about a fuse 19 in the ml350, but its a no go in this amg e55. no fuse in that slot. Thanks for any help.
