check engine light, p0171 and p1130
Alright well, my check engine light is coming and going with a p0171 code and p1130. Before the light comes on my afr is 11.xx and even dips into "rich". It occurs on the highway. However at idle and city driving, afr is normally around 14.xx. Car is a n/a 2000 5sfe. I have replaced the front air/fuel sensor with a dealer one and the after-cat sensor with a denso, problem persists. Car has SRI/rippmod headers/catback/unorth pulley.
I had the car checked for exhaust leaks.
Replaced pcv valve.
Cleaned IAC by spraying in TB
Checked hoses for leaks.
Have tried fuel additive cleaners including seafoam.
Fuel Filter has not been replaced as far as I know, bought the car with 40k, now has 100k miles. Not sure if this could be the cause since it is fine other than highway driving.
any ideas?
I had the car checked for exhaust leaks.
Replaced pcv valve.
Cleaned IAC by spraying in TB
Checked hoses for leaks.
Have tried fuel additive cleaners including seafoam.
Fuel Filter has not been replaced as far as I know, bought the car with 40k, now has 100k miles. Not sure if this could be the cause since it is fine other than highway driving.
any ideas?
- vdop
- Just Licensed SolaraGuy
- Posts: 3
- Joined: Sat Nov 03, 2007 6:27 pm