Engine reduced power?
Thread Starter
8th Gear
Joined: Jul 2013
Posts: 8
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Engine reduced power?
Hello. I am new to a Corvette and dont know anything about them...
I bought a 97 a few months ago. I just saw that my ECU is naked and is not coverd and also that its alittle loose? I was going to take it tomarrow and have it fixed and coverd but now my car wont run? I think it has got wet or something but not really sure. I started it up and it started to beep. Comes up with ENGINE REUDUCE POWER? Wont go over like 5mph now. It did it to me about a hour ago and I just turned it off and on and gave it some gass then it was fine but now no matter what it wont go.
I am going to take it to the shop tomorrow but I didnt know if it was maybe something I could look at before I spend all my money for something simple?
I bought a 97 a few months ago. I just saw that my ECU is naked and is not coverd and also that its alittle loose? I was going to take it tomarrow and have it fixed and coverd but now my car wont run? I think it has got wet or something but not really sure. I started it up and it started to beep. Comes up with ENGINE REUDUCE POWER? Wont go over like 5mph now. It did it to me about a hour ago and I just turned it off and on and gave it some gass then it was fine but now no matter what it wont go.
I am going to take it to the shop tomorrow but I didnt know if it was maybe something I could look at before I spend all my money for something simple?
Thread Starter
8th Gear
Joined: Jul 2013
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I did it and nothing. I watched the video too. Only thing that is coming up is "brake before shift".
It wont clear anything on the dash like it says it will in the video so I would say its got wire problems or something....
It wont clear anything on the dash like it says it will in the video so I would say its got wire problems or something....
Thread Starter
8th Gear
Joined: Jul 2013
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Is the carpeting wet in the passenger foot well?????
Also open the drivers door as wide as it will go. Grahold of the rubber accordian boot between the door and the A pillar and shake it as hard as you can. Does this make any difference in the reduced power message in the DIC???
Also open the drivers door as wide as it will go. Grahold of the rubber accordian boot between the door and the A pillar and shake it as hard as you can. Does this make any difference in the reduced power message in the DIC???
Only thing I know that is wroung with it is that the computer in the fender is loose and the ingition coil wiggles apart from the coil if I put the fuel rail covers on and it runs like crap. Maybe it came off again and its doing this to keep it safe.
The car is a rebuild and I am worried that I am going to get into a mess of wires and stuff thats been cut. Beuatiful car but if all it does is set dosnt matter how nice it looks lol
Thread Starter
8th Gear
Joined: Jul 2013
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Just got a call fromt he shop. It has the main harness that has been cut all up and there are loose wires. I dont know what I am going to do they said to buy a new harness. Anyone know of a good place with one that isnt super high?
Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Tim
Make SURE that someone didnt splice in an UPGRADED 2001-2004 PCM. Your 97-98 PCM is a lot slower and less upgradeable than a late model PCM and to swap in a new PCm requires a rewire. The PCM is not covered but should be properly secured in the fender. The actual PCM is contained in a water tight aluminum box. The TAC module (small black plastic box) on the outside of the PCM should also be properly secured.
PCM removed from the aluminum housing:
PCM in frame as delivered 97 frame/rolling chassis:
Check some of the corvette salvage yards for the harness
Bill
Make SURE that someone didnt splice in an UPGRADED 2001-2004 PCM. Your 97-98 PCM is a lot slower and less upgradeable than a late model PCM and to swap in a new PCm requires a rewire. The PCM is not covered but should be properly secured in the fender. The actual PCM is contained in a water tight aluminum box. The TAC module (small black plastic box) on the outside of the PCM should also be properly secured.
PCM removed from the aluminum housing:
PCM in frame as delivered 97 frame/rolling chassis:
Check some of the corvette salvage yards for the harness
Bill
Thread Starter
8th Gear
Joined: Jul 2013
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I dont know what they put back onto the car but all I know is that some wires are cut and stuff. They dont know what to do but look and find every wire and re do it. The computer they hooked up to it wont pick up any codes. They said they will have to re wire it then see if it will hook up to there thing and stuff and go from there. No clue as to what is wrong with it?
Thread Starter
8th Gear
Joined: Jul 2013
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I moved the coil wires around after I got it back from the shop because it had a bad miss in it and now its running better then it ever has?
I don't know what the prob is but the wires have been cut and re done before. Can a miss fire or running rich make that code pop up on the dash?
It was running super rich and the gas smell was super bad. Got in the car and the idol was super high and when u put it in gear it would launch off. Like I said I moved my wires around & the miss is gone. The code is gone, and the smell is gone.
I am lost with the car I think I will take it back to the shop and see if they can re wire the coil packs and the fuel rails..
I don't know what the prob is but the wires have been cut and re done before. Can a miss fire or running rich make that code pop up on the dash?
It was running super rich and the gas smell was super bad. Got in the car and the idol was super high and when u put it in gear it would launch off. Like I said I moved my wires around & the miss is gone. The code is gone, and the smell is gone.
I am lost with the car I think I will take it back to the shop and see if they can re wire the coil packs and the fuel rails..
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