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:

"reduced engine power" hypertech

Thread Tools
 
Search this Thread
 
Old May 17, 2009 | 12:50 PM
  #1  
chrisbenoit's Avatar
chrisbenoit
Thread Starter
Instructor
 
Joined: Apr 2009
Posts: 242
Likes: 1
From: Pictou Nova Scotia
Default "reduced engine power" hypertech

I just bought a 99 FRC recently. It came with a Hypertech programmer. I read the booklet and decided to plug the programmer in. Right away it started reading the current program in my car. It reached 99% and the alarm in the car started beeping and the DIC read "reduced engine power" I was then prompted to turn the ignition off and unplug the programmer. I took the car for a drive and it doesn't seem like I lost any power but I may have a whining noise coming out of the motor. The noise may be because the motor wasn't really warm. Should I be alarmed or is this normal? Any help is appreciated.
Reply
Old May 17, 2009 | 01:15 PM
  #2  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,246
Likes: 1,093
From: Dyer, IN
Default

Originally Posted by chrisbenoit
I took the car for a drive and it doesn't seem like I lost any power but I may have a whining noise coming out of the motor.
May be coming from the motor? Can you isolate the noise?

Originally Posted by chrisbenoit
The noise may be because the motor wasn't really warm. Should I be alarmed or is this normal? Any help is appreciated.
You should not have any whining noise at all, regardless if the engine is warm or not. Does it go away, or is it constant? You will have to be more specific. For all I know, what you are hearing is the AIR pump turn on.
Reply
Old May 17, 2009 | 01:46 PM
  #3  
Y2Kvert4me's Avatar
Y2Kvert4me
Race Director
 
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
Default

When flashing tunes into the PCM, it's fairly normal to see that message on the DIC. (I usually see it too when flashing a new tune in with EFI Live).

If you were really in Reduced power mode with the engine running, believe me, you'd notice the profound difference.

Reply
Old May 17, 2009 | 01:55 PM
  #4  
chrisbenoit's Avatar
chrisbenoit
Thread Starter
Instructor
 
Joined: Apr 2009
Posts: 242
Likes: 1
From: Pictou Nova Scotia
Default

Thanks for the help. As for the noise "whining" I just took the car for a drive and the higher gear I go the quieter the car is. It is barely noticeable in 5th, and can't hear anything in 6th, gear. Car is shifting fine and behaving as normal. I just recently bought the car so maybe I just noticed the noise today but I doubt it. Any ideas?
Reply
Old May 17, 2009 | 02:19 PM
  #5  
Z06Fanatic's Avatar
Z06Fanatic
Instructor
 
Joined: Jul 2008
Posts: 221
Likes: 0
Default

Originally Posted by chrisbenoit
I took the car for a drive and it doesn't seem like I lost any power but I may have a whining noise coming out of the motor.
Maybe it installed a supercharger??
Reply

Get notified of new replies

To "reduced engine power" hypertech





All times are GMT -4. The time now is 03:21 PM.

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