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

Post tune-up problems

Thread Tools
 
Search this Thread
 
Old Jul 5, 2004 | 09:18 PM
  #1  
B387's Avatar
B387
Thread Starter
Advanced
Supporting Lifetime
15 Year Member
 
Joined: Jun 2004
Posts: 78
Likes: 0
From: Olympia wa
Default Post tune-up problems

I just tuned up my 87, new spark plug wires (ACCEL), new cap, coil and rotor, new plugs (NKG), and now when it is cold it hesitates badly and even pops a little, it also has a habit of starting to idle badly even when it warms up, and I have to shut it down and restart to get it to come out of it. When it runs right it seems great, I'm wondering if I need to reset the timing for the new plugs or something. The car has 127,000 miles but other than some valve guide leakage it seems to run fine. Any thoughts anybody??
Reply
Old Jul 5, 2004 | 09:23 PM
  #2  
vader86's Avatar
vader86
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2001
Posts: 62,067
Likes: 1,723
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Default Re: Post tune-up problems (B387)

Check the TPS voltage
Reply
Old Jul 6, 2004 | 01:20 AM
  #3  
B387's Avatar
B387
Thread Starter
Advanced
Supporting Lifetime
15 Year Member
 
Joined: Jun 2004
Posts: 78
Likes: 0
From: Olympia wa
Default Re: Post tune-up problems (vader86)

I checked the timing and found it was set at about 0 degrees. My guess is somebody set without disconnecting the EST. I reset at 8 degrees and the problems cleared up. Thanks for the input.

B387
Reply

Get notified of new replies

To Post tune-up problems





All times are GMT -4. The time now is 09:00 AM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE