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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

backfire??

  • Thread starter Thread starter jimsstang91
  • Start date Start date May 18, 2006

jimsstang91

New Member
Dec 4, 2005
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0
May 18, 2006
#1
  • May 18, 2006
  • #1
when the car is cold i get a popping backfire though the intake or throttle body. when its warmed up its fine. what could this be???
 

jimsstang91

New Member
Dec 4, 2005
101
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0
May 18, 2006
#2
  • May 18, 2006
  • #2
anyone
 

gcwh02

New Member
Jun 20, 2005
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pottstown, PA
May 18, 2006
#3
  • May 18, 2006
  • #3
could be from running to rich, whats your setup and fp at?
 

Roland69

Sergeant Tangnet
Sep 17, 2005
2,867
2
58
Port Elgin, Ontario
May 18, 2006
#4
  • May 18, 2006
  • #4
what year is your car
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
May 19, 2006
#5
  • May 19, 2006
  • #5
This backfire occurs when idling, while RPM's are gently increasing, rapidly increasing.............?

What codes are you seeing (Pull them even if the CEL has not been illuminated)?

What is your timing set at?

Offer as much info as you can - there are myriad possibilities for such an issue.

Good luck.
 

vristang

15 Year Member
Mar 31, 2005
4,933
101
124
Seattle
May 19, 2006
#6
  • May 19, 2006
  • #6
jimsstang91 said:
when the car is cold i get a popping backfire though the intake or throttle body. when its warmed up its fine. what could this be???
Click to expand...

What are you calling warmed up?
Full coolant temp, or just coming out of open loop/startup?
How long does this usually take?

jason
 
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