Knock sensor question
Melting Slicks
Joined: Aug 2003
Posts: 3,389
Likes: 391
From: Lakeville MI
In the 89 $6E bins that I've checked, knock (retard) is disabled below 2 mph or below 650 rpm auto/850 rpm manual.
So a stationary vehicle at idle should not be affected by the knock sensor.
So a stationary vehicle at idle should not be affected by the knock sensor.
Thread Starter
Drifting
Joined: Dec 2012
Posts: 1,504
Likes: 73
From: Georgetown TX
I'm trying to figure a way to raise my idle about 75 to 100 rpms at idle in gear without burning chip which I don't have equipment or knowledge to do myself. I have done everything I know and what others have told me to try to get rid of miss at idle. When I first stop at light, idle seems fine then drops lower causing rough idle. NO vacuum leaks. I'm starting to think broken valve spring
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
I'm trying to figure a way to raise my idle about 75 to 100 rpms at idle in gear without burning chip which I don't have equipment or knowledge to do myself. I have done everything I know and what others have told me to try to get rid of miss at idle. When I first stop at light, idle seems fine then drops lower causing rough idle. NO vacuum leaks. I'm starting to think broken valve spring
I suggest a minimum idle adjustment:
http://forums.corvetteforum.com/1570563689-post1.html
A miss is usually an ignition problem. Check your wires in a dark garage for arcing.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
You may want to try cleaning your IAC and the air channels it uses.....This could cause a fluctuating idle..This should be done every few years anyway as preventive maintainance......WW
Last edited by WW7; Jul 21, 2015 at 06:28 AM.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
...This is how I check mine, but instead of a timing light I use a scanner to watch the timing retard...WW
Last edited by WW7; Jul 21, 2015 at 10:27 AM.