cleaned engine: problems
Thread Starter
Instructor
Joined: Aug 1999
Posts: 116
Likes: 11
From: Florida
cleaned engine: problems
I cleaned my engine and now I have; check engine light, ASR/ASR Service lite, and my idle went up to 1400 rpm. I have went into the codes and reset them but light still on and idle still the same. What do you think? Thanks.
Thread Starter
Instructor
Joined: Aug 1999
Posts: 116
Likes: 11
From: Florida
Yes I did clean engine with water. How else would one do it? I covered connectors and air intake. Engine was in very bad shape, had to do it. I accepted the reality that I might have issues. Now I just need to fix issues. Why did idle increase?
Le Mans Master
Joined: Dec 2004
Posts: 5,789
Likes: 8
From: Myrtle Beach SC
St. Jude Donor '05-'06
And what were the codes you reset? Did you dry it out with an air hose. Are we talkin LT4 here? Does the engine otherwise run ok? does it mis and backfire?Need more info....
Idle could be cable or idle screw adjustment .Was the engine running correctly before you hosed it?
Idle could be cable or idle screw adjustment .Was the engine running correctly before you hosed it?
Thread Starter
Instructor
Joined: Aug 1999
Posts: 116
Likes: 11
From: Florida
the only code were H67 and H65 or 63. H should mean history. I have the manuals and these codes seme ierealvent. The car ran great before. Yes it's a LT4. It runs fine other then the high idle. I also have the water pump leak. I have looked for a vaccume line issue but have found none
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
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Melting Slicks
Joined: Jun 2004
Posts: 3,424
Likes: 0
From: KANSAS
Originally Posted by RichS
Check the TPS and IAC, maybe there is water in the connections.
I wash my motor twice a year. I just blow it off with a leaf blower before I start it.
I wash my motor twice a year. I just blow it off with a leaf blower before I start it.
Le Mans Master
Joined: Apr 2000
Posts: 5,589
Likes: 0
From: DrunkDefender
CI 1-2-3-4-5-6-7-8 Veteran
CI-IV AutoX Champ
CI-IV Burnout Champ
St. Jude Donor '07-'10
Everyone hears "water/now runs rough" and condemns the opti. If it isnt setting a low res or high res signal code the opti should be fine. A high or low tps voltage spike will cause asr/abs codes. Dont get me wrong, it could be your opti but I'd get everything dried out really really well first then start looking for codes. Also, if the water pump is leaking it will soon get ruin the opti.
If you get a haynes or chiltons manual it will tell you how to check the TPS voltage with a digital multi meter. It should be .65v at rest/idle and 4.5v at WOT.
If you get a haynes or chiltons manual it will tell you how to check the TPS voltage with a digital multi meter. It should be .65v at rest/idle and 4.5v at WOT.
