C3 Collectors Edition
Thread Starter
6th Gear
Joined: Jul 2006
Posts: 6
Likes: 0
From: Ashburn Virginia
C3 Collectors Edition
I bought a C3 Collectors Edition about 6 years ago and have had nothing but problems. The car does not run very well at all. I have been told the issue with the poor running is directly related to the electronic, computer, fuel injection system which was new to the 82's and a poor design. I have also been told that finding a computer is virtually impossible. I can verify that fact. I have been through a couple of computers and each one goes bad in a very short period of time. Does anybody make an aftermarket computer or anyone have any ideas?
Many Thanks
Bruce Harding
Many Thanks
Bruce Harding
Le Mans Master
Joined: Jul 2005
Posts: 5,752
Likes: 4
From: Austin Texas
The '82 computers are not failure prone. I suspect you have something else going on. Most drivability problems with '82's are directly linked to poor tune-up maintenance, infrequent trips, and too many Bubba mechanics.
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Originally Posted by big_G
The '82 computers are not failure prone. I suspect you have something else going on. Most drivability problems with '82's are directly linked to poor tune-up maintenance, infrequent trips, and too many Bubba mechanics.
My advice would be to take the car to a reputable shop with experience in dealing with the Crossfire. Have them tune it and get it running.
Le Mans Master
Joined: Jul 2000
Posts: 6,664
Likes: 162
From: columbia city in
you will have to tell us more about what the car is doing .the cross-fire is fine it just needs some work on it just like all the rest ,but since it was the first attempt at computer controled fuel injection ,not many know what to do .ask here or go to the cross-fire forum .
Intermediate
Joined: Jan 2004
Posts: 41
Likes: 0
From: Upatoi Ga.
The 82 cross-fire is a very dependable vette and anyone telling you dif has very little understanding of this intake.I to, found few who could help, til I found www.crossfire.homeip.net/ .Like the great guys here who have a vast knowledge of vettes in general !(C1-C6) The Vault is cross-fire specific (82 & 84 vettes-82,83,84 firebirds & camaro).Between these two forums I can keep my Baby running fine. THANKS GUYS 
Le Mans Master
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
Originally Posted by big_G
The '82 computers are not failure prone. I suspect you have something else going on. Most drivability problems with '82's are directly linked to poor tune-up maintenance, infrequent trips, and too many Bubba mechanics.
Where in the country are you located?
Burning Brakes
Joined: Jan 2006
Posts: 1,154
Likes: 1
From: St Augustine FL
Originally Posted by 82 C.E.
The 82 cross-fire is a very dependable vette and anyone telling you dif has very little understanding of this intake.I to, found few who could help, til I found www.crossfire.homeip.net/ .Like the great guys here who have a vast knowledge of vettes in general !(C1-C6) The Vault is cross-fire specific (82 & 84 vettes-82,83,84 firebirds & camaro).Between these two forums I can keep my Baby running fine. THANKS GUYS
Also the computers are not hard to find. I have two spares for my car that I have aquired through members on this forum. Read this article in the link and take the article to your mechanic. The article tells you exactly how to correctly tune the crossfire system.
http://corvettefever.com/techarticles/4688/index.html
Good luck.
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Thread Starter
6th Gear
Joined: Jul 2006
Posts: 6
Likes: 0
From: Ashburn Virginia
When first running the car when it starts cold it seems to run decent. As soon as I stop and turn the engine off and come back a few minutes later the car barely runs and surges from 500 rpm to 2000 rpm. I have had a number of close calls, accidents, when suddenly the car surges both sitting at a stop and driving.
Thanks Bruce
Thanks Bruce
Burning Brakes
Joined: Jan 2006
Posts: 1,154
Likes: 1
From: St Augustine FL
Originally Posted by AVATR
When first running the car when it starts cold it seems to run decent. As soon as I stop and turn the engine off and come back a few minutes later the car barely runs and surges from 500 rpm to 2000 rpm. I have had a number of close calls, accidents, when suddenly the car surges both sitting at a stop and driving.
Thanks Bruce
Thanks Bruce
Race Director
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From: Compound in the Grove, Ga.
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Originally Posted by bluesilver82
You could have poor gasket seal or a vacuum leak that cause the engine to suck in air which creates the surges. Your Idle Air Speed controllers could be stuck or dirty. You could have a bad sensor or two making the car do this. Did the car sit for a while before being put back on the road? It is probably a culmination of a few things. Buy an 82 shop manual which can be found on ebay. I bought a used one that was in decent shape for $20. Also read the article in the link I posted above.
Most common issues with CFI
Le Mans Master
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
I remember riding in my buddies 82 Indy Pace Car Z28 back in the late 80s with cross fire injection. That thing ran fine, and he never had any problems with the FI unit. Of course it was only around 10 years old then, so maybe more problems develop as they got older.
