Long time listener, first time caller here.
i have an 89 GL wagon with an EA82 SPFI non-turbo. I can't figure out why I'm having some intermittent running problems with it, and I'm hoping you guys can help.
When I can get it started, it fires right up and runs great. But that's only about a quarter of the time. the other 75% of the time, it'll crank over and try to run, but it won't idle and when i try to give it gas, it bogs down and dies. When i do get it going, it'll run fine until i shut it off. then there's a one in four chance it'll start again.
Here's some additional background info on it;
It is a 100% off road rig. By that, I don't just mean it has a roll cage - we're talking no dash/interior. All gauges are aftermarket and mechanical.
The problem started while exploring some trails - it was less frequent at first. it has gotten progressively worse in the last 6 months.
I read on here that a similar problem was solved by checking/drying/replacing the wires going to the injector. I check them, and there is no damage. They are dry, and continuity is good. My injector sprays great for it's initial burst when the ignition is turned on. Fuel lines have been checked. fuel is flowing freely.
After checking the injector, the car fired right up, and i thought i found the problem. I shut it off, fired it up, no problems. Then i let it sit for five minutes, and it wouldn't start again.
So i tried fidgeting/checking the injector wires again; still wouldn't start.
So i tried cleaning/inspecting TPS; still wouldn't start.
So i tried unplugging the IAC. after adjusting the throttle butterfly valve, it seemed to run... not great, but it ran.
Waited ten minutes... and it wouldn't start.
Any suggestions would really help me on this.
Thanks in advance for the help!