Edit - Possibly resolved. I cleared the codes this morning, something I actually forgot to do last night. Took it down the road, the speedometer is accurate and the odometer is operating fine. Not sure if maybe he disconnected it while working with the O2 sensor wires around that area and didn't clear the codes after...There is no check engine light. I pulled the codes when I got back in and still nothing, but the PCM hasn't ran through it's readiness test yet so I don't know if it'll show anything after that. But everything seems to be operating normal. I'm still unsure why my Odometer read [--------] coming off the ramps yesterday though.
View attachment 205734
Was messing around near the throttle body/plenum today finding a way to get some Marvel Mystery Oil in there while the vehicle is running to trace an exhaust leak. Disconnected the PVC, vacuum and a couple electrical harnesses from the plenum/tb but they're all back on.
Also put the car on ramps and installed foglights. When I went to pull my car off the ramps I noticed my odometer turned to [----------]. Turned the car off and back on and the odometer returned. Hooked my Diablo up and it threw these codes. Disconnected the negative terminal, waited a few seconds, hooked it back up, turned the car to run without starting it and the codes immediately came back.
Car looked like it was idling around 750rpms which was abnormal. It was ran for a few seconds with the air filter and MAF off but it stalled of course. Also ran for a bit with the vacuum hose off.
I also had headers installed on tuesday, and installed underdrive pulleys about a week ago but I don't think it threw any codes after the pulleys if I recall. I believe this just happened.
The car didn't sound like it was idling at 750 RPMS but that was what the Diablo and the tachometer read. What would cause it to idle high after what we did above?
What's the deal? Something about no signal from the output shaft speed sensor.
There is no check engine light yet.
View attachment 205734
Was messing around near the throttle body/plenum today finding a way to get some Marvel Mystery Oil in there while the vehicle is running to trace an exhaust leak. Disconnected the PVC, vacuum and a couple electrical harnesses from the plenum/tb but they're all back on.
Also put the car on ramps and installed foglights. When I went to pull my car off the ramps I noticed my odometer turned to [----------]. Turned the car off and back on and the odometer returned. Hooked my Diablo up and it threw these codes. Disconnected the negative terminal, waited a few seconds, hooked it back up, turned the car to run without starting it and the codes immediately came back.
Car looked like it was idling around 750rpms which was abnormal. It was ran for a few seconds with the air filter and MAF off but it stalled of course. Also ran for a bit with the vacuum hose off.
I also had headers installed on tuesday, and installed underdrive pulleys about a week ago but I don't think it threw any codes after the pulleys if I recall. I believe this just happened.
The car didn't sound like it was idling at 750 RPMS but that was what the Diablo and the tachometer read. What would cause it to idle high after what we did above?
What's the deal? Something about no signal from the output shaft speed sensor.
There is no check engine light yet.
