P0170 fault code
Thread Starter
Junior Member
Joined: Dec 2003
Posts: 52
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P0170 fault code
hi guys
i got a werid code today, when i looked it up it says "fuel trim malfunction"
anybody knows what the hell that is?, the car starts and runs pretty good, Its a 97 e 320 with only 28000 miles on it.
somebody please let me know
pete
i got a werid code today, when i looked it up it says "fuel trim malfunction"
anybody knows what the hell that is?, the car starts and runs pretty good, Its a 97 e 320 with only 28000 miles on it.
somebody please let me know
pete
Super Member
Joined: Nov 2004
Posts: 588
Likes: 1
'98 E320 4Matic, '85 380SL
It's telling you that your air/fuel mixture reading is outside its "normal" range at idle and/or partial throttle. According to AllData, possible causes include intake air leak, injectors, diaphragm pressure regulator and engine wear.
The normal range can be reprogrammed by driving for 30 minutes. The coolant temp at startup must be less than 60 degrees C (i.e. completely cold).
The normal range can be reprogrammed by driving for 30 minutes. The coolant temp at startup must be less than 60 degrees C (i.e. completely cold).
Newbie
Joined: Jun 2004
Posts: 13
Likes: 0
From: Reading, PA
'98 E320 Wagon
I can't help with the tie rods, but I can for the Mass Air Sensor. I had the same code about 6 months ago, and I ignored it (and the CE light) until one day when I was trying to accelerate hard on the highway, and the car bucked like it was having a transmission problem. I guess I don't floor the car very often, but after reading about the P0170 symptoms, I gave it a shot. It's been problem-free ever since.
See http://www.mercedesshop.com/ Under FastLane's Special Order Parts, order #1120940048. It was $299.00 delivered.
Regards,
Steve
See http://www.mercedesshop.com/ Under FastLane's Special Order Parts, order #1120940048. It was $299.00 delivered.
Regards,
Steve
