Stalls after a warm startup?
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 1,107
Likes: 0
From: RI
Stalls after a warm startup?
Finally solved a 2000 rpm dead spot. But I still have a slight problem with no codes thrown. 93 LT1 starts up fine cold, idles around 1100 rpms then drops to 700-800 when ready to go. After driving around, oil gets to around 200 and coolant to 188-190, I'll shut it down. Wait 5-10 minutes or so, starts up fine, idles good but whenever I drive it, it wants to stall at a stop. Anyone know what this could be a sign of?
car has:
LT4 hotcam kit
headers
exhaust
car has:
LT4 hotcam kit
headers
exhaust
Le Mans Master
Joined: Jan 2006
Posts: 5,621
Likes: 206
From: Orlando FL
I think you should do a fuel pressure check and consider a possible clogged fuel filter. But you have to see whats going on first. The scanner is just one tool and will only tell you so much. Many other things can be wrong that the computer and scanner is not designed to show or measure. Might want to consider the IAC (idle speed control motor). Charge on. 
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 1,107
Likes: 0
From: RI
the car has a new fuel filter and all 8 injectors were ultrasonically cleaned 90 miles ago. Did a check on the fuel pressure and it was holding at 39 psi.
I will look into the IAC but my mechanic said the voltage was good.
I will look into the IAC but my mechanic said the voltage was good.
