exhaust poping noise
exhaust poping noise
i keep getting a poping cross back fire out the back exhaust, just when i back off and slowing down. Idles & revs without the poping, back fire noise.
what could be causing this?
i bought a new coil MSD BLASTER 2, put it in the car connected all the wires right. & put a 10.0mm ignition lead on the distributor to the coil.
i also had changed the o2 oxegen sensor from a vr4 got a base plate made up.
could this be a timing problem?
any help would be appreciated. cheers fellaz
what could be causing this?
i bought a new coil MSD BLASTER 2, put it in the car connected all the wires right. & put a 10.0mm ignition lead on the distributor to the coil.
i also had changed the o2 oxegen sensor from a vr4 got a base plate made up.
could this be a timing problem?
any help would be appreciated. cheers fellaz
mitsubishi starion jd 1985, factory intercooler,
custom stainless intercooler pipe work,to4 compressor wheel,10 psi boost,boost controller, 2 & half inch exhaust with stainless muffler 4 inch tip, 15 inch mags
custom stainless intercooler pipe work,to4 compressor wheel,10 psi boost,boost controller, 2 & half inch exhaust with stainless muffler 4 inch tip, 15 inch mags
- Cookiemonster
- Mother Goose
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- honest_jim
- Dorifto!
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mine started popping back like you discribed after i got a S/S exhaust put on. I think the cars running abit rich, it smells it sometimes. Trouble is it just sounds so good!
Starion 2000 EX.. bosch fuel pump, sard dumpvalve, knN drilled air box, Haltech F5 + 2 injectors, turbosmart FCD + Dual stage boost controller, tublar turbo header, turbo back 2.5" stainless exhaust 4.5" tip, Innovate MS wideband A/F meter.
exhaust popping on throttle overun is usually caused by air/fuel mixtures going to lean, typically leaner than 17.5:1 accompanied with to much ignition timing eg more than 30 degrees BTDC.
If you are running an aftermarket ecu this is easily rectified, if standard is likely to be a bit more tricky, but may be related to what manifold port the vac line to the distributor is being used.
If you are running an aftermarket ecu this is easily rectified, if standard is likely to be a bit more tricky, but may be related to what manifold port the vac line to the distributor is being used.
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