still poping
Thread Starter
Teching In
Joined: Apr 2007
Posts: 37
Likes: 0
From: orlando, fl
still poping ok i have a 1998 z, i have changed plugs, o2, fule filter, and it is still poping and the check eng. light is still on saying o2 and they are brand new what is wrong with this car dont know what else to do with it
Thread Starter
Teching In
Joined: Apr 2007
Posts: 37
Likes: 0
From: orlando, fl
has been, but all of a sudden it started to act up and had it scaned and said o2 so new o2 with a tune up and the other day new fule filter and it is still acting up and poping in the exaust pipe
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Teching In
Joined: Jun 2007
Posts: 21
Likes: 0
From: san leandro california
Check your diverter valves GM calls them one way check valves , check if there plugged or letting exhaust into the air system there is one in eack bank. You should only be able to blow air in one direction only.There the ones that look like huge diaphrams. Other than that it could be a rocker arm. Is the car running rich?
check for any exhaust leaks upstream or in between the Os sensors and the engine. all it takes is a small leak and it will cause the O2 to read completely off because the leak will let oxygen into the exhaust.
