Posted 03 January 2009 - 06:28 PM
Ed or anyone, I have a problem with my O2 sensor. It's a 3 wire Bosch which is less than a year old. My problem is when I'm at certain throttle position the O2 doesn't read. I either let off the gas or give it gas and it starts to read. It reads while idleing and when accelerating. I checked the TPS and found that it was giving erratic voltages when i slowly moved it. I changed it out and in MS 1 I calibrated the TPS. I left everything else the way you (ED) set it. What could be making the O2 do that? I have it in the stock position of the down pipe. I thought about moving it lower on the pipe further from the turbo to see if it helps. If that's not necessary, I'll leave it where it is. One other thing, since I changed out the TPS, it seems to be worse. I don't know if that's the culprit or coincidence. The Raider runs fine other wise but my fuel economy sucks.
1987 Dodge Raider rebuilt Quest block bored .040 over put together, and installed by Shelby. 5spd, '87 stock turbo, Intercooled, 2.5" exhaust. MPI with hard pipes, FIP Pro-4, MSextra MS1.