O2 Sensor help
#11
Okay everyone. Replaced both upstream sensors (Delphi sensors), cleaned Mass Airfow Sensor, changed fuel pump and filter (Delphi pump). Runs a little better however I am still getting a P0171 System Too Lean Bank 1.
What else could be the cause here? I can clear the CEL upon start up with a scan tool but when I shut it off and start it back up the CEL comes back.
What else could be the cause here? I can clear the CEL upon start up with a scan tool but when I shut it off and start it back up the CEL comes back.
#13
I don't think I can do that with my scan tool. But that code went away and it gave me 6 codes.
P0030 HO2s Heater Control Circuit (Bank 1 Sensor 1)
P0050 HO2s Heater Control Circuit (Bank 2 Sensor 1)
P0134 O2 Circuit No Activity Detected (Bank 1 Sensor1)
P0135 O2 Heater Circuit (Bank 1 Sensor 1)
P0154 O2 Circuit No Activity Detected (Bank 2 Sensor 1)
P0155 O2 Heater Circuit (Bank 2 Sensor 1)
P0030 HO2s Heater Control Circuit (Bank 1 Sensor 1)
P0050 HO2s Heater Control Circuit (Bank 2 Sensor 1)
P0134 O2 Circuit No Activity Detected (Bank 1 Sensor1)
P0135 O2 Heater Circuit (Bank 1 Sensor 1)
P0154 O2 Circuit No Activity Detected (Bank 2 Sensor 1)
P0155 O2 Heater Circuit (Bank 2 Sensor 1)
#16
Okay replaced the fuse and all O2 codes gone except P0171 System Too Lean Bank 1 and P0174 System Too Lean Bank 2.
I just dumped seafoam into the tank gonna let it clean the fuel system and injectors see what happens. Any other ideas on these two codes?
I just dumped seafoam into the tank gonna let it clean the fuel system and injectors see what happens. Any other ideas on these two codes?
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