LT1/LT4 Tech 1993-1997

94Z Backfire

Thread Tools
 
Search this Thread
 
  #1  
Old 01-31-2010, 09:56 PM
imalixZ28's Avatar
1st Gear Member
Thread Starter
Join Date: Nov 2009
Location: Chicago, IL
Posts: 191
Default 94Z Backfire

So I know i've got a backfire in my exhaust every time i let off the gas abruptly at speeds above around 40mph and accelerate again, very slight backfire at lesser speeds sometimes. my question is is the excess fuel exploding there going to eventually tear apart my exhaust or cause other problems? also what would i need to do to fix this issue? I heard in the 4th gens the PCM doesnt close fully when i let off the gas right away allowing excess fuel to go through unburned? is that right? i think he said PCM but im not entirely sure.
 

Last edited by imalixZ28; 01-31-2010 at 10:01 PM.
  #2  
Old 01-31-2010, 10:33 PM
whammer3024's Avatar
ROTM Winner
ROTM Winner's Club
Join Date: May 2007
Posts: 2,222
Default

backfiring usually indicates an issue with timing
 
  #3  
Old 02-02-2010, 09:29 PM
imalixZ28's Avatar
1st Gear Member
Thread Starter
Join Date: Nov 2009
Location: Chicago, IL
Posts: 191
Default

ok...anything else? lol
 
  #4  
Old 02-02-2010, 09:46 PM
Camaro 69's Avatar
Senior Moderator
January 2010 ROTM Winner
Join Date: Oct 2007
Location: The 'Burbs of Chicago
Posts: 18,306
Default

I see in your sig that you have a Borla exhaust. To some degree, you're running with a straight pipe with no muffler out the right side. The bigger the opening of a reducer that you use, or no reducer, the less that goes through your muffler. Without being able to hear what you hear, under those circumstances, I'd have to say it's "normal". You're most likely not hearing a "backfire", you're hearing a "rap".
 
  #5  
Old 02-03-2010, 02:59 PM
black95z28's Avatar
1st Gear Member
Join Date: Feb 2009
Location: St. Louis, MO
Posts: 173
Default

i have always wondered why borla is like that for the camaro... wouldnt the right exhaust tip be louder than the left side? mine has it, but i never really payed attention to it
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Skippysnax
LT1/LT4 Tech
5
12-19-2008 04:33 PM
Gordon24Camaro
82-92 General
3
03-08-2008 07:50 PM
luvmysccamaro
93-02 General
1
11-27-2007 09:50 AM
94Camaromil
93-02 V6 Tech
0
05-20-2007 10:48 PM
Mr. Zero
LT1/LT4 Tech
10
04-19-2007 01:36 AM



Quick Reply: 94Z Backfire



All times are GMT -5. The time now is 05:35 PM.