Backfiring is this normal?

[91LX_5L]

My car backfires if I tap on the gas (just like 1/8th throttle) like 3-4 times in a row, It did this in 3rd at about 2,000rpm. What could that be?

 

[WhiteStallionGT]

Check out my thread, the same thing happens to me, no one has responded yet.

 

[dstanggt50]

Have you check timing and codes??, those would be the first things I would check, maybe vacuum leaks, clean maf, the usual.

 

[18mustangs]

Also check the O2 sensors, my car did the same thing, I switched to LT headers so I replaced the O2 sensors and the problem went away. Run the codes first like dstanggt50 said.
Tim

 

[donjohn]

i've heard it's an o2 censor problem, but mine only does it once in a while when i rev hard

 

[91LX_5L]

humm mabye my o2 sensors are messed that might be why I have a power loss problem!?

Timing is at 16* I was going to bump it back down to 14* soon.

I allready cleaned maf, set tps, cleaned iac.

 

[yellowstang1994]

Do you have any exhaust leaks? I stripped one of my header bolts so I left the nut off it. It's on there pretty good while i'm ordering a new bolt kit but once in a while my car will backfire on load and sometimes with no load because of the leak (which you can't even hear but it's there). I'd check for leaks too!

 

[91LX_5L]

I got a header leak, gasket is blown...