355 with HSR wont idle
12-17-2015, 03:56 PM
#1
Member
Thread Starter
Join Date: Feb 2011
Location: St Augustine Florida
Posts: 195
Likes: 0
Received 2 Likes
on
2 Posts
Car: 1990 firebird formula
Engine: 355 HSR comp xfi 268 vortec heads
Transmission: 700r4
Axle/Gears: 3.27 BW 9bolt
355 with HSR wont idle
I'll give you a little backround. Built a 355 with a HSR vortec heads comp 268 cam and also has the dynamic efi ebl p4 ecu.
Got the car running and was running pretty good, driving it a bit around town but it was open headers. I decided to get the exhaust finished. Dropped it off running good got it back and it won't idle. Since then I've replaced the coil,O2 sensor,fuel filter,drained all the gas and put fresh gas in it,even sent the ecu back to ebl to get checked out and it's fine.
It will rev but as soon as I let off the gas it wants to die. How ever randomly yesterday I started it and it ran just as good as before. Shut it down and started it again and it was back to not idling.
Any help would be awesome I've been running in circles trying to figure this out for a week
Got the car running and was running pretty good, driving it a bit around town but it was open headers. I decided to get the exhaust finished. Dropped it off running good got it back and it won't idle. Since then I've replaced the coil,O2 sensor,fuel filter,drained all the gas and put fresh gas in it,even sent the ecu back to ebl to get checked out and it's fine.
It will rev but as soon as I let off the gas it wants to die. How ever randomly yesterday I started it and it ran just as good as before. Shut it down and started it again and it was back to not idling.
Any help would be awesome I've been running in circles trying to figure this out for a week
Thread
Thread Starter
Forum
Replies
Last Post
bluegrassz
Aftermarket Product Review
10
04-11-2017 02:15 PM
Night rider327
Engine/Drivetrain/Suspension Parts for Sale
2
12-18-2015 12:42 AM
Steve91Z28 L98
TPI
7
11-11-2001 06:27 PM