Adjusting the timing on an 82
Thread Starter
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
Adjusting the timing on an 82
Just asking. Can you just put it into diagnostic mode and not undo the EST wire? I know, disconnecting the wire is the right way, but why not just do the paper clip thing and put it into diagnostic. That way computer not in charge.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
Oh, heck...what do the GM engineers know (you know, those guys that designed and developed that system)?
I think if the book says to not have the engine running, there is likely a very good reason....
I think if the book says to not have the engine running, there is likely a very good reason....
Thread Starter
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
You do the paper clip thing when you are adjusting your tbi's and, obviously, engine must be running to pull the vacuum. Are you telling me I should not put it into diagnostic mode when balancing tbi's?
Thread Starter
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
Seems like I remember from the crossfire injection forum, the instructions are to put ecm into diagnostic mode.
Patiently awaiting reference to the book that you easily quote as a reference.
Le Mans Master
Joined: Jul 2000
Posts: 6,664
Likes: 162
From: columbia city in
all plug in code checkers say to not start the motor .why this is i dont know .you can if you want to .i was just following directions .if you have done this and it did not hurt anything ,good that way we wont worry if we start the car by mistake .when i balance my tbs i do not use the computer .i use a manometer at idle .
Thread Starter
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
all plug in code checkers say to not start the motor .why this is i dont know .you can if you want to .i was just following directions .if you have done this and it did not hurt anything ,good that way we wont worry if we start the car by mistake .when i balance my tbs i do not use the computer .i use a manometer at idle .
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
