car is back firing alot

[splitsecond03]

95 awd turbo eclipse back fires alot back fires many times in a row and makes me let off the gas i have a 3 inch pipe all the way back with out a cat. anybody have a problem with backfiring? i just put in new plugs too.

 

[Defiant]

Check your plug wires.

 

[viperbenz1]

95 awd turbo eclipse back fires alot back fires many times in a row and makes me let off the gas i have a 3 inch pipe all the way back with out a cat. anybody have a problem with backfiring? i just put in new plugs too.

sorry to bring this old thread , but im having same issue my car just keep back firing alot
i got a new spark plugs and wires, anyone could help me?

 

[Project90Talon]

sorry to bring this old thread , but im having same issue my car just keep back firing alot
i got a new spark plugs and wires, anyone could help me?

check your coilpack, it may have a loose connection.

 

[Killa_dsm]

What kind of plugs are you running? Make sure they are NGK BPR6ES gapped to .028 and also do a boost leak test.

 

[wht 92 talon]

i have this problem but i was told its because im running rich and my car is not tuned..... if your car is modded look into tuning or something along those lines.

 

[Killa_dsm]

I just looked at your profile. Is your turbo xs bov recirculated? Venting without the proper equipment is a no no, and has been known to cause problems for people.

 

[91 TSi GP]

if you have a 3" exhaust that could be why, i have 4" no cat and no muffler and it backfires like a whore

 

[jholmes]

Backfiring is a result of incomplete combustion most commonly caused by running rich on fuel injected cars. When that raw fuel enters the exhaust and is introduced to hot gasses it combusts, thus a back fire. I would ensure your AFR isn't too rich. If its under decel/engine braking there isnt going to be a whole lot you can do for it with an AFC. Another problem spot is grounding...If your coils don't have good grounds they wont develop peak voltage and combustion will suffer. Good luck

 

[viperbenz1]

I just looked at your profile. Is your turbo xs bov recirculated? Venting without the proper equipment is a no no, and has been known to cause problems for people.

i have a greddy rs bov and no its not recirculated, it was my spark plugs wires, just put some ngk and no more back firing, but the boost is creeping to 20psi

 

[viperbenz1]

hello everyone, today when i was driving my car i found out that my car is boosting 25psi now, thats not good it keeps hiting fuel cut at 17psi,
can somone help me lower the boost to 14 or 15psi,, ###