when i floor it at any speed the car stayes the same speed and rpm but it makes a back fireing sound from the engine not the exaust. it then starts to surge . but if i let off, its fine any thing heaver than the weight of my foot will set it off. i put new pugs and wires in it. expencive ones too. fuel filter maybe or a injector problem i dunno please help thanks shane
2006-09-19 07:04:09 · 3 answers · asked by electrode17 1 in Cars & Transportation ➔ Maintenance & Repairs
Sounds like a fuel filter problem and/or dirty injectors to me.
If it runs fine at idle, but not when you give it gas, the engine is starving for gasoline so it's most likely the fuel filter, or your fuel pump is not supplying enough pressure to the injectors or your fuel pressure regulator is not working properly to maintain pressure.
I recommend replacement in this order (do them one at a time and hopefully the ones before the expensive stuff will solve your problem):
Fuel Filter,
Fuel Pump,
Injector Cleaner,
Fuel Pressure regulator.
Fuel Injectors.
2006-09-19 07:06:48 · answer #1 · answered by hsueh010 7 · 0⤊ 1⤋
check your tps (throttle position sensor) it is what communicates with your car to tell it how far you are opening the throttle.
it could be ( but i would highly doubt) an injector problem.
fuel pump.... maybe. I would put this right up with the tps. (more likely than injectors).
that sound you are hearing from the engine is not backfiring. it is detonation and can mess up you engine pretty bad...
2006-09-19 07:17:22 · answer #2 · answered by Evan B 3 · 0⤊ 0⤋
93 Mitisubishi Diamante...
Just put your money towards a new car and try to sell that one. Good luck!
2006-09-19 07:14:33 · answer #3 · answered by silentstar 1 · 0⤊ 0⤋