82 Crossfire flooding
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Intermediate
Joined: Jul 2018
Posts: 29
Likes: 8
82 Crossfire flooding
Car recently has left me stranded after flooding due to injectors want to spray way too much fuel.
This time it started up after sitting for about 2 minutes (was making a quick stop), but it stalled after about 2 seconds of running. I tried to start it and nothing. Took the air cover assembly off and the throttle bodies have pools of fuel sitting in them. When it tries to start it dumps what looks like way too much fuel into the intake (both injectors).
It did this to me a week ago (went to auto zone to get a for sale sign and came back out and it started and instantly stalled), had to tow it home, pulled the plugs and blew everything out and let it dry out over night, put brand new plugs in it the next day and it fired right up.
Just put a new ECM from an ‘84 along with EPROM
Getting really good spark,
Fuel pump and relay are just fine
Can rule out oil pressure since ECM is kicking injectors on
no problems with coolant temp or any of that
Not sure about codes, I’ll check them when I get back out to the car.
The TBIs appear to still be factory set and the car doesn’t surge or idle high or anything, so it doesn’t get excess fuel while running.
in just really hoping it’s not the ECM because they are like unicorns, hard to find and ungodly expensive.
I’m going to disconnect the battery today to reset everything.
Any help would be great!
video attached is last week before I cleaned it all out.
This time it started up after sitting for about 2 minutes (was making a quick stop), but it stalled after about 2 seconds of running. I tried to start it and nothing. Took the air cover assembly off and the throttle bodies have pools of fuel sitting in them. When it tries to start it dumps what looks like way too much fuel into the intake (both injectors).
It did this to me a week ago (went to auto zone to get a for sale sign and came back out and it started and instantly stalled), had to tow it home, pulled the plugs and blew everything out and let it dry out over night, put brand new plugs in it the next day and it fired right up.
Just put a new ECM from an ‘84 along with EPROM
Getting really good spark,
Fuel pump and relay are just fine
Can rule out oil pressure since ECM is kicking injectors on
no problems with coolant temp or any of that
Not sure about codes, I’ll check them when I get back out to the car.
The TBIs appear to still be factory set and the car doesn’t surge or idle high or anything, so it doesn’t get excess fuel while running.
in just really hoping it’s not the ECM because they are like unicorns, hard to find and ungodly expensive.
I’m going to disconnect the battery today to reset everything.
Any help would be great!
video attached is last week before I cleaned it all out.
Safety Car
Joined: Nov 2005
Posts: 3,532
Likes: 1,185
From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...
I have to ask why did you replace the ECM, what was the issue and is it from an automatic or 4+3 84? Do you get a CEL? Do you have an 82 GM service manual? If not, get one off ebay you will need it.
Last edited by Buccaneer; Apr 17, 2021 at 02:27 PM.
