mxracer420

so im drivin home from washington right now and my car has a gsr and is poppin a code for the o2 and has a walboro 255lph and motor is stock just exhaust and ram air were cruisin at 60 barely in throttle and its like chuggin and stutterin once u give it gas it goes away any ideas why lemme know thanks

racebum

a bad o2 can make the car feel choppy in closed loop. the other obvious area to check is ignition timing. verify that you're at 16deg btdc@750rpm and that you don't have a plug, wire, or distributor issue. first replace the o2 or make sure you don't have a wiring issue. once the code clears, drive it. if the problem is still there look into ignition timing areas

lilj95

idrivesideways is right you could have arcing issue with the sparkplugs/coilpack