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

Need help!

Thread Tools
 
Search this Thread
 
Old Aug 21, 2003 | 09:48 PM
  #1  
91superram's Avatar
91superram
Thread Starter
Instructor
 
Joined: Mar 2003
Posts: 239
Likes: 0
From: Toronto Ontario
Default Need help!

Car will only run with Knock sensor disconnected and TPS set to .44Volts
Can someone tell me why this is happening and when its connected, it back fires and runs rich. If I set the TPS to .54Volts its even worse
Reply
Old Aug 21, 2003 | 10:17 PM
  #2  
neverendingproject's Avatar
neverendingproject
Pro
 
Joined: Jan 2003
Posts: 669
Likes: 0
From: memphis tn
Default Re: Need help! (91superram)

has anything been done that could have led to this problem? 91 is an l98 right? just digging for more info
Reply
Old Aug 21, 2003 | 10:19 PM
  #3  
scorp508's Avatar
scorp508
Team Owner
Supporting Lifetime Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Default Re: Need help! (neverendingproject)

What does your O2 millivolt readings say when it runs good and then when it runs badly?
Reply
Old Aug 22, 2003 | 09:43 AM
  #4  
91superram's Avatar
91superram
Thread Starter
Instructor
 
Joined: Mar 2003
Posts: 239
Likes: 0
From: Toronto Ontario
Default Re: Need help! (scorp508)

This has been a problem since I installed my modified motor.I also tried changing my 02 sensor to a heated one but still didnt work so I took it to the local performance shop and noticed they disconnected my knock sensor completly.Car seems to run fine but want to know why?
Reply
Old Aug 22, 2003 | 09:49 AM
  #5  
91superram's Avatar
91superram
Thread Starter
Instructor
 
Joined: Mar 2003
Posts: 239
Likes: 0
From: Toronto Ontario
Default Re: Need help! (91superram)

Could it be my valves not set properly?
Reply
Old Aug 22, 2003 | 11:18 AM
  #6  
BIG JIM 54's Avatar
BIG JIM 54
Burning Brakes
 
Joined: Jul 2002
Posts: 871
Likes: 0
From: Costa Mesa CA
Default Re: Need help! (91superram)

Have you checked the timing?

BIG JIM
Reply
Old Aug 22, 2003 | 12:43 PM
  #7  
tjwong's Avatar
tjwong
Le Mans Master
Supporting Lifetime Gold
20 Year Member
 
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Default Re: Need help! (BIG JIM 54)

What year is your car? Have you checked for any diagnostic codes?
Reply
Old Aug 23, 2003 | 08:46 PM
  #8  
91superram's Avatar
91superram
Thread Starter
Instructor
 
Joined: Mar 2003
Posts: 239
Likes: 0
From: Toronto Ontario
Default Re: Need help! (91superram)

Found the problem. Traced it back to a broken wire at the Knock sensor

Thanks
Reply

Get notified of new replies

To Need help!

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo




All times are GMT -4. The time now is 08:38 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