19282 Crossfire Problems
Thread Starter
3rd Gear
Joined: May 2021
Posts: 3
Likes: 0
19282 Crossfire Problems
New to Forum, I have been searching here and anyplace I can find so I finally wanted to ask for help. I have a 1982 with Crossfire and have been having a terrible time trying to get it started. Here is what I have going on and what I started with:
When I got the car, it did not start. The previous owner showed me a video of it running but gave up after they replaced the tank, pump, rebuilt both throttle bodies and also replaced the steering column. I am still not sure why they replied the steering column.
He had also replaced the ECM with a Cardone one when it would not start. So this is what I am working with.
What I have tried:
Any thoughts or other posts I should look at. Sorry of someone posted this issue before but I have been searching awhile and finally had to ask.
Thanks,
Phil
When I got the car, it did not start. The previous owner showed me a video of it running but gave up after they replaced the tank, pump, rebuilt both throttle bodies and also replaced the steering column. I am still not sure why they replied the steering column.
He had also replaced the ECM with a Cardone one when it would not start. So this is what I am working with.
What I have tried:
- I can get it to run with starting fluid. Starts and runs smooth for a few seconds.
- I have tested the fuel pump and it does pump and I am getting fuel to the throttle bodies.
- When I jumper the oil pressure switch I hear the pump turn on and I can see a drop or 2 come out of the rear TB.
- When I crank the engine the pump does not turn on.
- I have tried to read codes but get nothing when jumping the ALDL ports
- Fuel pump relay never seems to click when key is turned on.
- I have run jumpers to ground ECM just in case
- ECM fuse was blown when I first starting testing things. Have checked all others and they are good
Any thoughts or other posts I should look at. Sorry of someone posted this issue before but I have been searching awhile and finally had to ask.
Thanks,
Phil
Drifting
Joined: Aug 2019
Posts: 1,336
Likes: 225
Are the injectors even pulsing? I would try an injector test light to see if the light flashes, If it does then there's an issue with the injectors. If it doesn't flash then it's either an ECM or wiring issue, Also if the TPS is putting out very high voltage it could put the ECM into a clear flood mode where the injectors won't pulse. The best scenario is that they're gummed up from not running for a while, or from old gas. Just an FYI, I'm not a big fan of Cardone ECM's. The fuel pump should run for 2 seconds when the key is turned to the run position. It gets that signal when the ECM powers up the relay.
Last edited by Mrvettenick; May 16, 2021 at 12:03 PM.
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 would say by reading your thread that you do not have a GM service manual to troubleshoot this issue properly. I would HIGHLY suggest that you get one, before you ***** nilly 
start throwing parts at it. There IS are logical steps that you need to go through to find the issues. I do have a question though, why was your ECM power fuse blown? That fuse is a dedicated power source directly to your ECM, nothing else in the system is on that line or should be.
start throwing parts at it. There IS are logical steps that you need to go through to find the issues. I do have a question though, why was your ECM power fuse blown? That fuse is a dedicated power source directly to your ECM, nothing else in the system is on that line or should be.
Last edited by Buccaneer; May 16, 2021 at 12:55 PM.
Thread Starter
3rd Gear
Joined: May 2021
Posts: 3
Likes: 0
Thanks for the reply, I will be trying my noid light in the injectors tomorrow. I know I am getting voltage to the positive side of both injectors when using my test light. Also, When I jump the terminals in the oil pressure switch the pump comes on even when the ignition is off. Not sure if that should be the case. Is there any kind of test to verify the ECM either on the bench or in the car?
Thanks,
Phil
Thanks,
Phil
Thread Starter
3rd Gear
Joined: May 2021
Posts: 3
Likes: 0
Thanks Buccaneer, yes I will be getting a service manual soon. At this point I don't want to buy any parts until I determine what actually is wrong. Not sure why the ECM fuse was blown as of yet. Found an orange + wire by the battery that appears to the ECM that had lost the tape covering the horrible splice job so I am slowly repairing some crappy work done to this car along the way.
Drifting
Joined: Aug 2019
Posts: 1,336
Likes: 225
Thanks for the reply, I will be trying my noid light in the injectors tomorrow. I know I am getting voltage to the positive side of both injectors when using my test light. Also, When I jump the terminals in the oil pressure switch the pump comes on even when the ignition is off. Not sure if that should be the case. Is there any kind of test to verify the ECM either on the bench or in the car?
Thanks,
Phil
Thanks,
Phil
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...
That makes no sense. In my 30 years of CFI experience, I've never seen that happen. If they were shorted, it may take out the ECM injector driver circuit, but not the fuse and if it did, it WOULD keep blowing the fuse every time you hit the key since the injector would still be shorted. A short is a short. The GM service manual will be your friend and IS worth its weight in gold.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Melting Slicks
Joined: May 2021
Posts: 2,271
Likes: 1,316
From: Fleming Island, FL
First, please don't use starting fluid. Use a squirt bottle with gas. It ain't a diesel. Of course this a guess. No pump fuel, no check engine light, the previous owner replaced the ECM and a steering column that has a ignition switch, sounds like the previous owner was trying to fix an electrical problem. Check the white ECM connector pins 15 and 16 (Orange and pink/black wires) for power with the key on. And do get a service manual.