PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Backfires and loss of power

Thread Tools
 
Search this Thread
 
Old Jan 12, 2023 | 04:39 PM
  #1  
MrAgentRaptor's Avatar
Thread Starter
Registered User
 
Joined: Jan 2023
Posts: 1
Likes: 0
Default Backfires and loss of power

I think it’s a sensor that has gone bad but I have now replaced my coil packs and my cam sensor and the loss of power on now seems more noticeable. I’m slowly running out of idea of what could be causing this.
Reply
Old Jan 12, 2023 | 05:49 PM
  #2  
G Atsma's Avatar
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,291
Likes: 3,616
From: Central Cal.
Default

Cam sensor would not cause the problem. The crank sensor would be a possibility.
Reply
Old Jan 13, 2023 | 02:05 AM
  #3  
ChopperDoc's Avatar
TECH Fanatic
10 Year Member
 
Joined: Oct 2014
Posts: 1,220
Likes: 179
From: Virginia
Default

Originally Posted by MrAgentRaptor
I think it’s a sensor that has gone bad but I have now replaced my coil packs and my cam sensor and the loss of power on now seems more noticeable. I’m slowly running out of idea of what could be causing this.
If you can scan it, see what the knock sensors are doing. If one has crapped out and is reporting knock, it will pull spark and result in a serious loss of power.

If that’s not it you might have a clogged cat, if you have them, but it will behave as you are describing. Tough to say based on so very little information, but either of my guesses are founded and possible and hopefully get you pointed in the right direction.
Reply
Old Jan 13, 2023 | 07:03 AM
  #4  
B52bombardier1's Avatar
TECH Fanatic
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2017
Posts: 1,467
Likes: 265
From: Bossier City, Louisiana
Default

Can you post a tune and logs with the vehicle running?

Rick
Reply




All times are GMT -5. The time now is 02:33 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE