C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Engine with high RPM

Thread Tools
 
Search this Thread
 
Old Sep 21, 2007 | 06:31 PM
  #1  
D.Stadt's Avatar
D.Stadt
Thread Starter
7th Gear
 
Joined: Jun 2005
Posts: 7
Likes: 0
Default Engine with high RPM

I went to start the vet today and immediately the fan came on along with the check engine light and the car was running at 1400 rpms. When I put it in gear the engine dies. It was running great last night. Can't figure this one out!
Reply
Old Sep 21, 2007 | 09:27 PM
  #2  
bogus's Avatar
bogus
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Default

did you pull the code? That would help a lot.

what year is the damned thing? Please... these cars vary from year to year SO MUCH...

If it's a 92 or 93, check this out:

www.c4guru.com - Reading CCM Codes

Last edited by bogus; Sep 22, 2007 at 01:26 AM.
Reply
Old Sep 22, 2007 | 08:19 PM
  #3  
D.Stadt's Avatar
D.Stadt
Thread Starter
7th Gear
 
Joined: Jun 2005
Posts: 7
Likes: 0
Default

Its a 89
Reply
Old Sep 22, 2007 | 08:50 PM
  #4  
bogus's Avatar
bogus
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Default

that helps.

you still need to pull the codes from the ECM.

I stole this image from Casethecorvetteman:



Jump pins A and B and count the flashes on the SES light on the DIC.

You will get three flashes of 12:

<flash> short pause <flash><flash>
longish pause
<flash> short pause <flash><flash>
longish pause
<flash> short pause <flash><flash>

long pause

the code:

For example, says it's a code 32:

<flash> <flash> <flash> short pause <flash><flash>
longish pause
<flash> <flash> <flash> short pause <flash><flash>
longish pause
<flash> <flash> <flash> short pause <flash><flash>
longish pause

It does that 5 times.

It will then show the next code (if more than one is stored).

at the end, it will flash the 12 code again.

Code 12 means that everything is talking.

another option, and potentially easier, is to go to Autozone and see if they can pull the code, but since you can't drive it...
Reply

Get notified of new replies

To Engine with high RPM





All times are GMT -4. The time now is 02:44 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