TMar99Z28

Well, I keep getting a p0134 o2 sensor, no ckt activity on bank 1. Well I though it was just some old gas that was still working through since my car sat for about 6 months since the last time I drove it. I filled her up with premium and put half a can of sea foam in the gas tank and after about 30 minutes of driving around the ses light turned off. Today I went to go to school and started my car, boom check engine light is back on. You guys have any idea what could be causing this. Oh yeah, I used o2 sensor extensions when I installed my headers like 4 years ago, can these be the problem?

DaddySS

Strange because it says it turns it on after the second cycle not working and turns it off after the third cycle of working right.

Check the wiring, reset the PCM and it it is still happening try a new 02 sensor

TMar99Z28

That's the response I was afraid I was gonna get. I put a new sensor in before I had the rich condition. Dammit, these things get expensive, lol.