Popping on acceleration

sage2k · Apr 19, 2006

On acceleration my car makes popping sounds in the exhaust and losses power but once im cruising it doesnt pop and its fine. Doesnt do it in idle either. It started about 4 weeks after i installed a catback, think it is an exhaust leak? I dont hear any ticking.. can exhaust leaks cause this problem? Or perhaps its my MAF going bad?

I have cleaned my MAF multiple times by the way

mootang · Apr 19, 2006

an exhaust leak could cause it but if it was that far back I don't think it would be the cause. if it was leaking before the 0xygen sensors it could cause this. do a tune up and go from there. check/replace cap, rotor, plugs, plug wires, fuel filter, air filter, and what ever else i'm forgetting.

95Vert · Apr 19, 2006

mootang said:
an exhaust leak could cause it but if it was that far back I don't think it would be the cause. if it was leaking before the 0xygen sensors it could cause this. do a tune up and go from there. check/replace cap, rotor, plugs, plug wires, fuel filter, air filter, and what ever else i'm forgetting.

mootang · Apr 19, 2006

I'm not stupid, you are!!!

mo_dingo · Apr 19, 2006

Could be pinging...

sage2k · Apr 19, 2006

ok i drove it some more its not really popping but maybe hesistation is a better word, its not pinging im sure i know what pinging sounds like. It jerks a bit when accelerating...

fuel filter is new, air filter is a K&N which i have cleaned, MAF is cleaned regularly, plugs are only a few months old ( less than 5k miles on them), plug wires i will check and prolly replace, will see about cap and rotor, what is the rotor btw i never messed with the distributer

bill302 · Apr 19, 2006

mootang said:
I'm not stupid, you are!!!

mootang · Apr 20, 2006

if you pull the cap off there is a peice that spins inside it that is the rotor. all you do is pull up on it and it will come out. $5 peice. also check that you are getting fuel pressure!

the rotor is the small peice next to the cap in this photo.
http://store.summitracing.com/partdetail.asp?autofilter=1&part=FMS%2DM%2D12106%2DB302&N=115&autoview=sku

sage2k · Apr 20, 2006

how do i know if the cap and rotor are bad?

mootang · Apr 20, 2006

how many miles have you put on this car since owning it?

sage2k · Apr 20, 2006

6k miles maybe

mootang · Apr 20, 2006

you can get the msd cap and rotor for $25 might as well since you dont know how old the ones on there are. also maybe some new plugs and wires. if that doesn't fix the problem then go from there.

urban96 · Apr 20, 2006

definatly check your plugs, pull atleast 2 out and inspect them, new autolites are ~$10

Pokageek · Apr 20, 2006

bill302 said:

bill302 · Apr 20, 2006

the popping noise on acceleration is caused by unburned fuel entering the exhaust system and igniting there. is your check engine light on and have you attempted to pull codes it could be a bad sensor or injector ect....

95Vert · Apr 21, 2006

mootang said:
you can get the msd cap and rotor for $25 might as well since you dont know how old the ones on there are. also maybe some new plugs and wires. if that doesn't fix the problem then go from there.

sage2k · Apr 21, 2006

ok its raining this weekend...im probably going to do cap, rotor, plugs, plug wires next weekend

by the way, i unplugged MAF sensor, and it didnt hesitate or pop like normal, it still did it, but much much much less....what do you guys think? i hadnt done through testing with the MAF unplugged tho cause it runs like ass from a stand still, and made ALOT of gas fumes, probably fouled my plugs...oh well ill do a full tune up and report back

mootang · Apr 21, 2006

you can clean your maf as well just make sure use the right stuff or you can hurt your oxygen sensors.

Popping on acceleration

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