Ok so i got the 84 SE running the other day, but today I fire it up and after letting it warm up I get a Code 45 rich exhaust. I put it into reverse and the engine stalled, tried just going straight into drive, same thing. Also the car is idling high, like 2000 RPM. My dad said check the timing again since that was my last problem, timing was spot on. set at the recommended specs under the hood.
The car starts up fine, but idles way to high and stalls when in gear. Please help. I searched the forums for Code 45 help but it seems like every problem is different and no one every posts how they fixed it, even when most of their symptoms match mine.
As you work in the engine bay it's easy to dislodge a vacuum tube or two. Make sure they are all good and get your idle down. If you still have a code 45, you could replace the 02 sensor.
In addition to getting the high idle under control, disconnect the lockup solenoid to rule out a sticking torque converter lockup mechanism (feels the same as dumping the clutch) . If it clears up, run with it disconnected. It won't hurt anything except highway fuel mileage. Also, automatics are supposed to have timing set IN GEAR. Find a tree to snug up to then set the timing. Hope this helps.
Ok I think i found the issue, let me know if this makes sense. I was reading the Fiero manual and came across the coolant temp sensor and that if its damaged it can cause problems with the entire fuel system. I checked and wouldnt u know it, a wire that goes to the coolant temp sensor was broken. So if the engine cant see how warm the engine is, then the engine will always be in open loop which explains my high idle. Still not sure about the engine stalling unless thats the cars way of saving itself before it gets to hot??
