LT1 startup Q's...ideas please.
11-21-2008, 11:03 PM
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LT1 startup Q's...ideas please. 96 LT1 out of Pontiac Firebird, Cold air w/K&N, mid length headers, 2 1/2" into dual 50 series flows 3" out, Computer tune by current performance: lower temp, no emissions, raised idle to compensate for no VSS, VATS deleted, Aeoromotive adj. reg., everything else is bone stock except it is in a 88' Toyota 4 Runner, checked one cylinder 150-60 psi comp.
1. I don't have a tach, but I would guess the motor is idling at about 2000-2500rpm at idle even when the temp gauge hits 180. Seems high is there a way to lower it without cracking into PCM? It doesn't seem like Current performance would set it that high.
2. After I run it for several minutes ( It never goes above 185 on temp) and shut it down it won't start back up until it sits for a while. It will turn over just fine, but won't "light off"....battery at 12.6, charges at 14.8 when running. Sometimes if you give it a little gas just right it will barely catch and start. Fuel pressure is at 43.5.
3. Feels like a lot of moisture coming out of the exhaust, little water droplets in the air..blown head gasket? It has been really cold here in Oregon so hopefully it is condensation that was sitting i in the exhaust.
It seems to rev fine, no visible vacuum leaks, when it sits for a while it starts just fine. Possibly leaky injectors? Ideas?
1. I don't have a tach, but I would guess the motor is idling at about 2000-2500rpm at idle even when the temp gauge hits 180. Seems high is there a way to lower it without cracking into PCM? It doesn't seem like Current performance would set it that high.
2. After I run it for several minutes ( It never goes above 185 on temp) and shut it down it won't start back up until it sits for a while. It will turn over just fine, but won't "light off"....battery at 12.6, charges at 14.8 when running. Sometimes if you give it a little gas just right it will barely catch and start. Fuel pressure is at 43.5.
3. Feels like a lot of moisture coming out of the exhaust, little water droplets in the air..blown head gasket? It has been really cold here in Oregon so hopefully it is condensation that was sitting i in the exhaust.
It seems to rev fine, no visible vacuum leaks, when it sits for a while it starts just fine. Possibly leaky injectors? Ideas?
