MTBPathy

Forget I said anything, check engine light doesn't come on now, and it runs perfectly

I have a weird issue I am looking for help with, My pathfinder was showing typical Oxygen sensor issues, hesitation on acceleration, runs fine when it warms up, ECU threw trouble code 33, so I just replaced the sensor simple enough right? WRONG now when I hit the gas pedal the check engine light comes on, it only does this when gas pedal is depressed as soon as you let off the gas the light turns off. The motor runs fine, and I went through the diagnostics procedure for checking the TPS, and starter etc. all except for the speed sensor because I just havent unbolted the ecu to watch it while I am driving, Any ideas what could be causing this? Im tempted to say its a crossed wire, however I do not know enough about pathys yet to figure it out. It runs and drives fine (there might be an exghaust stud broken cause it ticks until its warm, I'll have to check that) but the problem is more one of annoyance that there is a light on my dash that flashes on and off. Any help would be appreciated

Just bought a Pathfinder, it's a 1994 I think its an xe, and I already totally dig this thing, I need to do some suspension work though, it needs an alignment pretty bad, but I think its great! I also want to thank everyone on this forum for having a forum to go to with my issues...