Hello again,
So I had multiple fault codes that popped up since a while:
P0171
P0101
P0451
P0446
After changing my air filter, spark plugs, evap sensor, I cleared all of them.
But now, I still have CEL without any fault code. So, I checked my short and long fuel trim + O2 sensor. And something don't work.
At idle speed:
O2 is at 0.9V
Short Fuel Trim is above 5%
Long Fuel Trim is at 20%
At driving speed:
O2 is not oscillating but go to 0.7, 0.8, 0.1, 0.4.
Short Fuel Trim is between -3% and 3%
Long Fuel Trim is between 5% and 10%
Also, I notice a consumption increases. Around 10L/100km instead of 8-9L/100km (winter time).
So I know it may be three things:
So I had multiple fault codes that popped up since a while:
P0171
P0101
P0451
P0446
After changing my air filter, spark plugs, evap sensor, I cleared all of them.
But now, I still have CEL without any fault code. So, I checked my short and long fuel trim + O2 sensor. And something don't work.
At idle speed:
O2 is at 0.9V
Short Fuel Trim is above 5%
Long Fuel Trim is at 20%
At driving speed:
O2 is not oscillating but go to 0.7, 0.8, 0.1, 0.4.
Short Fuel Trim is between -3% and 3%
Long Fuel Trim is between 5% and 10%
Also, I notice a consumption increases. Around 10L/100km instead of 8-9L/100km (winter time).
So I know it may be three things:
- MAF sensor
- O2 sensor
- Vacuum leak