My Green Beauty is a teenager now (14 years young) and started to misbehave :wink:. Last week windscreen washer pump (replaced), this week "Check engine" light. I did OBDII scan using my home equipment and I got this:
I did the reading about P0170 and looks like it will be job for my garage to figure out what's exactly is wrong. Additional info:
1. I could bet I smell fuel after starting the car during last week. Something that has never happened before. It was like engine was getting too much fuel in good old days without any electronics on-board.
2. Few time observed power fluctuation when driving at low speed. It was like I was moving my feet on the accelerator gently back and forth. Except I wasn't.
3. MIL light cam on when driving at 100 kph, a few minutes after very heavy acceleration. I got on a main road, up hill, so it was "pedal to the metal" up hill acceleration.
I want to ask dear forum: what's the most common reason of P0170 OBD-II Trouble Code: Fuel Trim Malfunction (Bank 1)?
MAF sensor? O2 sensor(s)?
Code:
[..]
MIL light ON, 1 stored DTC
Requesting Mode 0x03 (Emission DTCs)...
P0170
[..]
1. I could bet I smell fuel after starting the car during last week. Something that has never happened before. It was like engine was getting too much fuel in good old days without any electronics on-board.
2. Few time observed power fluctuation when driving at low speed. It was like I was moving my feet on the accelerator gently back and forth. Except I wasn't.
3. MIL light cam on when driving at 100 kph, a few minutes after very heavy acceleration. I got on a main road, up hill, so it was "pedal to the metal" up hill acceleration.
I want to ask dear forum: what's the most common reason of P0170 OBD-II Trouble Code: Fuel Trim Malfunction (Bank 1)?
MAF sensor? O2 sensor(s)?