I got this code on the highway going aprox 80 mph and reset it. I just got the code again about 4 days later on the highway doing the same speed.

I checked the sensors and the harness and they seem fine. I know I do not have any leaks in the intake/exhaust. Should I have the fuel pressure and fuel injectors checked or just replace the sensors? I have an aftermarket intake/TP's/catback and I am tuned. I have had no problems since being tuned.

Can't seem to find much for this code.

Anyone have some exp with code?

 

i was driving at around 80-90 on the freeway when I got a CEL, checked it when I got home and I saw in my pending codes the same one. I do have a bad 02 sensor because I get codes for it here and there. Did you ever find a solution?

 

I had 2 problems causing my issue..

#1. Was missing the gasket for the MAF sensor.

#2. Secondary o2 sensors. They worked fine; however, they made the ECU think it was running lean. It would throw lean codes ut run VERY RICH. I would be sitting at high 12s low 13s just at idle. Unplugging the rear 02 sensors fixed the issue. You will have a CEL still, but it will be fixed. I do want to clarify and say this seems to be mainly an issue for 2004.5's with testpipes/high flows.