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Sputtering and backfiring


CutSupreme93

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i think i have the same prob im leaning toward the cat

 

what reason did you change the cat and pump for in the first place??

 

could be your egr valve or fuel pressure regulator*

 

i changed the plugs, wires,injectors ,pump,fuel filter,tps, iac, egr, pcv, timing chain and belt,

still have not fixed the prob.

 

only thing left is cat, fpr, and ecm i think but i might just breakdown and bring it to a shop

 

but since you fixed ill try the icm and coils.

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  • 2 weeks later...

i think i have the same prob im leaning toward the cat

 

what reason did you change the cat and pump for in the first place??

 

could be your egr valve or fuel pressure regulator*

 

i changed the plugs, wires,injectors ,pump,fuel filter,tps, iac, egr, pcv, timing chain and belt,

still have not fixed the prob.

 

only thing left is cat, fpr, and ecm i think but i might just breakdown and bring it to a shop

 

but since you fixed ill try the icm and coils.

 

there was a bad smell of raw gas and a friend of mine suggested it might be a bad coil and then other people on here also suggested it might be a bad coil so i replaced them, i replaced the cat b4 n it didnt fix the prob i think it was the gas burning in the exhaust that made the cat go bad maybe u have the same problem i did, i would deffinetly change the coil paks since youve replaced all of the other things.

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