what would cause=

[kbillan]

I have a bit of a back firing going on with my car when you go through the gears with your foot in it a bit.

If im driving it regularly, not accellerating hard, it doesnt do it much at all..

what would cause this?

[kbillan]

Funny you should mention faulty wires.. the other day I had a wire come off a plug! thought the car sprung an oil leak as it was knocking so bad (valve-train noise) when we left the shopping mart we pulled into-- i could just feel a total loss of power/ bad feeling..

Ill check all of the wires tomorrow.. maybe there is another that is barely on..

[SPEEDFREEK]

If those fail check the mass air.

[Stinger1993]

I almost had that same problem.

At WOT, the car would feel like it was hitting a rev limiter at 5,200-5,500 rmp's.

I took it to a guy i knew at pep boys, He told me to take off the mass air meter, I did, he hit it with some carb cleaner because those 2 little wire thingy's were dirty. It took care of the problem as of right now.

I was not getting any backfiring thou.

[kbillan]

No= no rev limiter feeling... but it does feel a little down in power from what it was.

Maybe this evening..

[Stinger1993]

good luck man and let us know how you made out.

as being down on power, My car now breaks the tires loose in 1st hitting it at 3,000rpm's....It did not do that before the cleaning.

[kbillan]

I pressed all of the plug wires on really good.. and it is better, but it still does it a bit.

Im thinking i just need to do plugs and wires.. I have the nice big MSD wires.. perhaps its just plugs it needs..

power seemes to have come back a bit..

[red95gts]

Backfire out the exhaust means there is unburnt fuel in the exhaust. This usually means one of two things:

- The mixture is too rich (MAF, BAP, ACT, ECT)

- The mixture is correct, but it's not being completely burned (ignition components, timing, etc)

Ignition could be breaking up at higher rpms if the plugs, wires, cap/rotor are all older...