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- Tue May 12, 2020 8:06 am
- Forum: Diagnostic Help
- Topic: 89 2.8 Idles at 2500-3000 at Cold Startup
- Replies: 2
- Views: 5185
89 2.8 Idles at 2500-3000 at Cold Startup
I have a 89 GTU and whenever is start it up and its cooled off it idles up to 2500-3000 RPM Right at startup and sits there. I've noticed that if I put it in drive and move forward and Reverse and move back it drops to 750 RPM. I replaced the TPS Sensor, Map Sensor, New Fuel Injectors, New IAC Valve...