1984 Corvette doesn't start
Thread Starter
3rd Gear
Joined: Jun 2016
Posts: 3
Likes: 0
From: Miller Wisconsin
1984 Corvette doesn't start
I just got to the point where I can turn the key and I thought it should run, it turns over and sparks fires a few times but then floods. I can see gas pouring into it and it just seems like it's too much and I can't figure out why it would be dumping that much gas. (I have the air filter off
About the car
Crossfire fuel injection
Headers (with o2 sensor installed)
New battery
New spark plugs
And what I think it has most to do is the previous owner cut the wires because he was going to do an engine swap( I know worst way he could possibly do that they unplug) I soldered then back together but am uncertain if that's causing the problem or not. Any information on how I could narrow down the right wires would be much appreciated.
Thanks in advance
About the car
Crossfire fuel injection
Headers (with o2 sensor installed)
New battery
New spark plugs
And what I think it has most to do is the previous owner cut the wires because he was going to do an engine swap( I know worst way he could possibly do that they unplug) I soldered then back together but am uncertain if that's causing the problem or not. Any information on how I could narrow down the right wires would be much appreciated.
Thanks in advance
Racer
Joined: Mar 2015
Posts: 492
Likes: 40
From: SE Ohio
St. Jude Donor '16-'17-'18,'19
It's a long time since I've had an 84 and my memory ain't what it use to be, but assuming you put like color together, you may have one or more injectors stuck open. It happened to me once. I changed the injector and it started and ran like new, but I forgot to change the oil with fuel in it and wiped out some lifters.
I think you can unplug the injectors turn the switch to run and see if they spray fuel. If they do the injector is stuck. I'm sure someone on here will correct me if I,m wrong.
I think you can unplug the injectors turn the switch to run and see if they spray fuel. If they do the injector is stuck. I'm sure someone on here will correct me if I,m wrong.
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 just got to the point where I can turn the key and I thought it should run, it turns over and sparks fires a few times but then floods. I can see gas pouring into it and it just seems like it's too much and I can't figure out why it would be dumping that much gas. (I have the air filter off
About the car
Crossfire fuel injection
Headers (with o2 sensor installed)
New battery
New spark plugs
And what I think it has most to do is the previous owner cut the wires because he was going to do an engine swap( I know worst way he could possibly do that they unplug) I soldered then back together but am uncertain if that's causing the problem or not. Any information on how I could narrow down the right wires would be much appreciated.
Thanks in advance
About the car
Crossfire fuel injection
Headers (with o2 sensor installed)
New battery
New spark plugs
And what I think it has most to do is the previous owner cut the wires because he was going to do an engine swap( I know worst way he could possibly do that they unplug) I soldered then back together but am uncertain if that's causing the problem or not. Any information on how I could narrow down the right wires would be much appreciated.
Thanks in advance
Safety Car
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
Melting Slicks
Joined: Dec 2009
Posts: 2,233
Likes: 285
Race Director
Joined: Feb 2003
Posts: 16,475
Likes: 270
From: Kingman AZ
Cruise-In VII Veteran
Cruise-In VIII
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
You really need to buy a Factory Service Manual (FSM). NOT the universal C4 ones from Wally World or the auto parts store. You can find either paper or CD copies on eBay.
These will pay for themselves after one repair. The diagnostic flow charts are worth the purchase
These will pay for themselves after one repair. The diagnostic flow charts are worth the purchase
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...
You really need to buy a Factory Service Manual (FSM). NOT the universal C4 ones from Wally World or the auto parts store. You can find either paper or CD copies on eBay.
These will pay for themselves after one repair. The diagnostic flow charts are worth the purchase
These will pay for themselves after one repair. The diagnostic flow charts are worth the purchase
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Thread Starter
3rd Gear
Joined: Jun 2016
Posts: 3
Likes: 0
From: Miller Wisconsin
I had a friend look at it yesterday and he found the throttle was sticking open and was able to keep it idling after that was taken care of. Thanks for all your advice I'll still look over everything you guys mentioned to make sure she's in tip top shape. The only code I got was code 12
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...
This also true for a 82 as well. Vacuum does not control FP with CFI, it's all mechanical.
Does code 12 but check engine light still on mean anything different?
Last edited by Buccaneer; Jul 25, 2016 at 07:52 PM.