C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Help, massive failure and idle problem

Thread Tools
 
Search this Thread
 
Old Sep 18, 2005 | 05:23 PM
  #1  
Y2KRoadster's Avatar
Y2KRoadster
Thread Starter
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2003
Posts: 2,213
Likes: 135
From: In front!
Default Help, massive failure and idle problem

Out last night racing with my friend in his Viper...all of a sudden, when I was almost all the way into it. The DIC suddenly comes on and says REDUCED ENGINE POWER...the car then starts to die on me. I got it to the house and now, it will start, but you have to get on the gas to keep it running...otherwise, it sputters and then dies. I do have a worn out battery but I don't think that is the problem...In an attempt to reset the computer, I cleared any and all codes so I don't have them either. Any help would be greatly appreciated!
Reply
Old Sep 18, 2005 | 05:35 PM
  #2  
Z06ufgrad2002's Avatar
Z06ufgrad2002
Safety Car
20 Year Member
 
Joined: Nov 2002
Posts: 4,394
Likes: 6
From: Melbourne FL
Default

Originally Posted by Y2KRoadster
Out last night racing with my friend in his Viper...all of a sudden, when I was almost all the way into it. The DIC suddenly comes on and says REDUCED ENGINE POWER...the car then starts to die on me. I got it to the house and now, it will start, but you have to get on the gas to keep it running...otherwise, it sputters and then dies. I do have a worn out battery but I don't think that is the problem...In an attempt to reset the computer, I cleared any and all codes so I don't have them either. Any help would be greatly appreciated!
Probably the best thing to do is to start it back up so it will throw the codes again and then write them down and go from there.
It really could be a multitude of things starting with a fouled plug to burnt plug wires and on to a bent valve. You need to start with the codes.
Reply
Old Sep 18, 2005 | 05:39 PM
  #3  
fdxpilot's Avatar
fdxpilot
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2001
Posts: 4,661
Likes: 67
From: Ocean Springs MS
Default

Originally Posted by Z06ufgrad2002
Probably the best thing to do is to start it back up so it will throw the codes again and then write them down and go from there.
It really could be a multitude of things starting with a fouled plug to burnt plug wires and on to a bent valve. You need to start with the codes.
The codes are the car's way of telling you what's wrong. Clearing them, without writing them down and investigating what they mean, is just like telling your car "screw you!"
Reply
Old Sep 18, 2005 | 07:17 PM
  #4  
C_Williams@RPM's Avatar
0C_Williams@RPM
Former Vendor
 
Joined: May 2005
Posts: 3,749
Likes: 4
From: Valencia Ca
Default

Start with the easy stuff, like checking that all the connections from the air box to the throttle body are tight, allowing no unmetered air to enter.
Reply
Old Sep 19, 2005 | 01:22 AM
  #5  
Bill Curlee's Avatar
Bill Curlee
Tech Contributor
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Default

C5 are VERY sensitive to battery voltage!! If you suspect that the battery is bad, that would be the FIRST thing that I would check!!


What is the voltage on the dash volt meter and the voltage on the DIC volt meter? What is the voltage on the battery at the battery terminals with the car OFF and then with it idling??

After you start the car and check the voltages, go back and re-check the codes and post them. Make sure you post the C or H sufixes!!

I also agree with checking all of the air intake connections between the MAF and the throttle body.
Bill

Last edited by Bill Curlee; Sep 19, 2005 at 01:24 AM.
Reply

Get notified of new replies

To Help, massive failure and idle problem





All times are GMT -4. The time now is 01:58 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE