Backfiring Issue (2002 Z28)
#1
Backfiring Issue (2002 Z28)
Since I've picked up my '02 ls1, I've noticed some backfiring issues and I'm not really sure if this is normal or what....
It's usually on a higher rev right when the rpm drop during a shift. Also, it will sometimes backfire on a cold start. I have a long tubes, no cats, true duals, and a diablo tune.
I've heard that this is sometimes normal on the '02's, but I'm not entirely sure. Does anyone have any experience with this same problem? What would usually cause this to happen?
It's usually on a higher rev right when the rpm drop during a shift. Also, it will sometimes backfire on a cold start. I have a long tubes, no cats, true duals, and a diablo tune.
I've heard that this is sometimes normal on the '02's, but I'm not entirely sure. Does anyone have any experience with this same problem? What would usually cause this to happen?
#4
TECH Fanatic
Mine does it, worse when cold, on backing off & after hard full Throttle and back off, it will back fire due to over run of unburnt fuel & open 3.5" exhaust
Trending Topics
#11
I have no codes as of now, they went away even though I never changed the O2's (which is why the codes were being thrown). Could I have fouled out the plugs or injectors by driving while these codes were being thrown?
My car has only 9000 miles so this is the only thing I can think of....
My car has only 9000 miles so this is the only thing I can think of....
#14
TECH Junkie
iTrader: (29)
my 01 does the same damn thing pisses me off i have lm1 when i shift from 3-4k it will pop out the exhaust and does it bad when cold and some at WOT ive had the tuned lookes at so i guess its the exhaust getting old