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Exhaust Goes Pop! When I Drive...please Help!

R33Turbo

By R33Turbo,
in Engines & Forced Induction

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R33Turbo Proficient

R33Turbo

Posted
Posted

Ive just put in a Cat back exhaust recently 2 days ago, and its standard everything even the cat and dump...I dunno if its running rich or anything but definitely its not backfiring cuz the exhaust underneath the car goes "POP!" occassionally and pretty often when i drive even normally...Occurs randomly but more often when i let go off throttle, but i can assure you the sounds not coming from the back of the exhaust tip...its somewhere around where the cat is underneath the car.

What could it be guys?? im very irritated...Did i blow something?

jeffworld2 Veteran

jeffworld2

Posted
Posted

try using a gasket such as maniseal as well as the metal gaskets. smear some on both sides of the gasket when you install.

the popping is from oxygen contacting the hot unburnt fuel- ie you have a leak somewhere.

R33Turbo Proficient

R33Turbo

Posted
  • Author
Posted

Ah as i was driving whilst being scattered from yesterday night, occassionally it goes POP! again underneath the exhaust system more to where the cat would be or the front end rather than the TIP of the exhaust....is this still called a "backfire"???? So that its normal?

Amm Enthusiast

Amm

Posted
Posted
Mine does it as well. Nothing to be concerned about :rofl:

Also re-set your ECU as it will improve power and economy with the new exhaust

sorry off the subject how do you reset your computer

Kinks Grand Master

Kinks

Posted
Posted

my car does this with standard everything. It seems to be a symptom of running 98 RON fuel, I get better performance and less popping (but not quite eliminated) running 100 RON. If only I was made of money :banana:

  • 7 months later...
R33Hesh Community Regular

R33Hesh

Posted
Posted

i got the same issues. i just fixed a vee port BOV n since then, there theres a pop every now and then

every keep saying its normal. just wondering if its safe for the car. not really concerned about the fuel econ

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