C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Need help!

Thread Tools
 
Search this Thread
 
Old Nov 11, 2011 | 09:33 AM
  #1  
Dtownbrown's Avatar
Dtownbrown
Thread Starter
Pro
 
Joined: Aug 2010
Posts: 578
Likes: 0
From: Texarkana Ar
Default Need help!

Coming down to the finishing parts of my new twin turbo project and things are not going well. Just installed a new 408 stroker and it will start, but I have no acceleration. And the code " reduced engine power" comes on my display. I checked my throttle body connectors and they are installed correctly. What else could it be? It also idles high " 1300 RPMs"constantly. And also, while it's started and I hook up the batt. Wire to the alternator it sends power to my starter and I dunno if I have the hot wires mixed up on the starter or not.

And another issue is I also installEd a new clutch, flywheel, & throw-out bearing. Bleeded the clutch and have clutch pressure, but while the car is running it will not engage enough the put it in gear. It's a mcloed Borg and deck clutch. Maybe I need an adjustable clutch master cylinder?
Reply
Old Nov 11, 2011 | 09:41 AM
  #2  
chevy406's Avatar
chevy406
Tech Contributor
20 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Sep 2005
Posts: 1,731
Likes: 82
From: New Market AL
Default

Who is tuning this for you? You don't expect it to run with a 408 on a stock tune do you? A vehicle equipped with electronic throttle has an interlock that will fail to "Reduced Engine Power" if more airflow is passing than the ECM is programmed to recognize for a specific throttle position. It's an easy fix using HP Tuner or EFI Live. I strongly suggest you don't push it without getting a proper tune.
Reply
Old Nov 11, 2011 | 09:51 AM
  #3  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,246
Likes: 1,092
From: Dyer, IN
Default

Originally Posted by Dtownbrown
And also, while it's started and I hook up the batt. Wire to the alternator it sends power to my starter and I dunno if I have the hot wires mixed up on the starter or not.
Please explain another way......
Reply
Old Nov 11, 2011 | 09:56 AM
  #4  
Tech's Avatar
Tech
Safety Car
15 Year Member
 
Joined: Jun 2005
Posts: 4,977
Likes: 256
From: St. Louis Missouri
Default

Have you done _any_ tuning? Are you still using the factory, unmolested, throttle body?
Reply

Get notified of new replies

To Need help!





All times are GMT -4. The time now is 03:38 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