Why would a car misfire?
Big Baller
iTrader: (1)
Joined: Nov 2002
Posts: 1,821
From: Washington
Car Info: 93 BG5, 00&01 GM6, 06LGT, 07STi
one of your four elements for combustion isn't there:
Fuel, air , spark, compression.
Fuel: too much/ too little
air: same
spark: none or erratic due to bad plugs, bad wires, coils, some connection somewhere, etc
compression: sticking valve, cracked piston, worn rings, etc
Fuel, air , spark, compression.
Fuel: too much/ too little
air: same
spark: none or erratic due to bad plugs, bad wires, coils, some connection somewhere, etc
compression: sticking valve, cracked piston, worn rings, etc
Pr0n King
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Joined: Nov 2002
Posts: 26,618
From: The Land of Rocks
Car Info: Turncoat Turbo
What makes you think that the car is misfiring or is this a rhetorical question?
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Pr0n King
iTrader: (3)
Joined: Nov 2002
Posts: 26,618
From: The Land of Rocks
Car Info: Turncoat Turbo
What mods do you have to the car? Do you have a crank pulley?
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Thread Starter
Registered User
Joined: May 2003
Posts: 419
From: San Diego
Car Info: 2004 subaru sti
Originally posted by IS2Scooby
What mods do you have to the car? Do you have a crank pulley?
What mods do you have to the car? Do you have a crank pulley?
Registered User
Joined: Oct 2003
Posts: 78
From: Juncos Puerto Rico
Car Info: Subaru WRX STI 2006
Misfire code
I am glad somebody did bring this topic to the forum. I been having the same problem since I installed the Unichip from TurboXS. When I started to have the misfire my mods were the Unichip Stage 1 Map, drop in Piper Cross Air Filter and I removed the resonator. Then I changed to Spark Plugs Iridium IK24 and still get the same codes. The last mod was the Invidia DownPipe with the Oxigen Sensor Mod connected to it and still gets the codes. Sometime I get P0301, P0302, P0304, others I get P0301, P0304 but I am not getting all four like at the begining. I did buy an OBD2 scanner to erase the codes everytime the CEL comes on. If any body know the solution that will be great to get that fix. I even wrote an email to TurboXS Technical Support and was told that it was normal to get that code but solutions were provided by them.
(WRX 2002 5speed)
(WRX 2002 5speed)
no a back fire is not good and neither is a misfire...you might be talking about a after fire where unburnt fuel hits the hot exhaust pipe and burns and shoots a flame out the end...