SVT232V6
Member
I have been struggling with a P0175 Bank 2 System Too Rich code for months now. Car usually runs ok on start up, then gets worse after it warms up. Fuel pressure starts off around 30-40 psi then goes up to 67 psi after it warms. Is that normal? So far I have replaced the following:
-Spark plugs
-Plug wires gapped at .054
-Plenum gasket
-Cleaned fuel injectors
-MAF Sensor
-DPFE sensor
-Fuel filter
I had a code for the MAF sensor(intermittent signal/low voltage) so I replaced it. DPFE sensor had cracked off during my changing of the spark plugs and wires(plugs were rusty) so that’s new. Fuel filter was replaced when I changed the engine oil, transmission fluid and filters. I have been trying to chase this issue down with no luck. I thought I had it figured out last night when I discovered my IMRC rod bushings were missing from the IMRC Control Unit arm so the passenger side wasn’t even operating. Replaced the bushings, reconnected the rod and put everything back together. Took it for a ride and it ran better, but after I got home it started idling off again and threw P0175 again. There was also a Misfire Cylinder 4 code but I cleaned the plug and it’s gone. I’m stuck and need some help. I did have a code for the upstream B2/S1 O2 sensor and replaced that with a Denso sensor from RockAuto if that has anything to do with it. Below is a screenshot of some values I was looking at on my BlueDriver.
-Spark plugs
-Plug wires gapped at .054
-Plenum gasket
-Cleaned fuel injectors
-MAF Sensor
-DPFE sensor
-Fuel filter
I had a code for the MAF sensor(intermittent signal/low voltage) so I replaced it. DPFE sensor had cracked off during my changing of the spark plugs and wires(plugs were rusty) so that’s new. Fuel filter was replaced when I changed the engine oil, transmission fluid and filters. I have been trying to chase this issue down with no luck. I thought I had it figured out last night when I discovered my IMRC rod bushings were missing from the IMRC Control Unit arm so the passenger side wasn’t even operating. Replaced the bushings, reconnected the rod and put everything back together. Took it for a ride and it ran better, but after I got home it started idling off again and threw P0175 again. There was also a Misfire Cylinder 4 code but I cleaned the plug and it’s gone. I’m stuck and need some help. I did have a code for the upstream B2/S1 O2 sensor and replaced that with a Denso sensor from RockAuto if that has anything to do with it. Below is a screenshot of some values I was looking at on my BlueDriver.