Joshuamishler
NAXJA Forum User
- Location
- Sin City, Middle of Nowhere
Ok so I have an 88 5speed with 281k. Usually when starting the idle jumps to 2.5k and then creeps up to 3k and holds there. I've tried letting it run and seeing if it goes back or tapping the throttle, but the only thing that brings it down is turning it off for a few seconds and restarting it. Some times it takes a few tries. But after driving for a few minutes it will idle anywhere between 1.3 and 2.5, usually when comming to a stop or going in neutral. I have replaced iac, tps, and cps, I have checked for vacuum leaks. I recently warmed it up to running temp and got it to idle normal, about 850, and disconnected the iac. It still idles a little high, about 1k, after driving. Also I am getting very poor mileage and its running very rich. (Fuel pressure is at 31psi) I have also gone through the grounds and harness connectors on firewall and leaned them. Also I've dialed in the tps almost perfect, I think it's off by .001. I feel like I'm running out of options. I'm wondering if this engine is just due for a rebuild. Anyone have any ideas on what else to check?