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Exhuast Poping Nosie On Deaccleation

Scottie

By Scottie,
in Engines & Forced Induction

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Scottie Community Regular

Scottie

Posted
Posted

hey guys the popping on de acceleration has been getting worse for awhile and last night at the drags made it ten times worse. Orginally i thought the cat had shit itself but i had it on a hoist today and the exhuast is all good. And there appears to be no exhaust leaks and no intake leaks and it is holding boost what can course this poping. It appears to be down on power as well. I am hoping that a spike to 16 psi last night down the strip hasnt affected the stock turbo.

R34GTFOUR Mentor

R34GTFOUR

Posted
Posted (edited)

its normal to have abit of popping, my pops it ass off normally :)

If you think its excessive or getting worse i would check for intake leaks, just simple things like tight hose clamps and all vacuum hoses are on tight with cable ties. What bov are you running? Could that be leaking slightly?

Also what ecu are you running? stock or tuned?

if the turbo is still boosting fine without funny noises it should be ok, a quick 16psi spike wont hurt it, continous high boost will.

Also remember it is summer now, turbo cars hate the heat so its normal to have a significant drop in power during the day aswell.

Edited by R34GTFOUR
Scottie Community Regular

Scottie

Posted
  • Author
Posted

lol yeah its good but mine sounds pritty bad more like a old shit box back firing but instead its poping lol i will check the cooler pipes and extra tomorrow. It has a stock ecu but its been retuned by toshi and i am running a stock bov

donkey Community Regular

donkey

Posted
Posted (edited)

check your plugs for fouling,

my gtr runs pretty rich, and starts backfiring after about 2 months, especially in summer, the plugs will soot up, i just clean them and problem gone........

hope this works for ya

Edited by donkey
Scottie Community Regular

Scottie

Posted
  • Author
Posted

i will check the plugs there only alittle bit over a month old and the o2 sensor is good its not old at all and tested it a couple of weeks ago and i would mind the pop if it wasnt to excessive but it is quiet bad

Green_s13 Proficient

Green_s13

Posted
Posted

I had a problem similar to this turned out to be a leaking o-ring in an injector.

however it can be a number of things a small vacume leak, plugs, afm, 02 sensor. since plugs and 02 sensor are newish i would look at clean afm, then change fuel filter (never know) then look for any fuel leaks

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