Leaderboard

I had to run a wire from the engine compartment into the inside of the car to a toggle switch. I didn't do it the expert way. I did it the easy way. 🙂 If you look at the base of the steering column where it goes through the firewall you will find a rubber bellows like seal around the steering column. You can use a sharp pointed awl or similar tool to pierce a small hole in the rubber seal (smaller than the wire) and then force the wire through it. That will give a good seal around the wire and you won't have to drill any holes. Someone may have a different idea on how to do it but that worked for me without doing much damage to the car.

I would also suggest removing the blower motor and looking inside with a flashlight and mirror to see if the evaporator is clean. The insulation that they used around the housing disintigrates and gets sucked into the fins. This is what mine looked like: I replaced this whole evaporator as part of a system overhaul, but one could probably just stick a vacuum hose in through the blower motor hole and suck that crap out without disassembling anything

I'm a pretty simple guy, don't use the manual, hardly go for codes, just do basic stuff. For fuel I take the cap off the fuels Schrader valve and press it with a screwdriver. If it givese a good squirt the fuel system is good. You talk about the cps, is that the cam position sensor or the crank position sensor. The cam position sensor only allows the car to run at factory specs. It will not give the hard running issues you describe, but the crank position sensor will. Try replacing the crank position sensor and tell us what happened.

Glad you finally got around to it. Maybe make a donation to help Ronnie run this forum. If you had taken it to a shop it would have been $150. for diagnosis plus at least an hour labor.

For the 1990, the ECU is behind the glovebox, but you access it by removing passenger footwell "roof". Just four small torx bolts and two wing nuts, all easy to reach. Well, if you are limber and don't mind working upside down and partly folded in half...