1986lt1boy

Hey guys i have a 1994 Lt1 396 stroker motor. My right side O2 sensor keeps on going lean i changed it 2 times now and no difference. I ran a scan using the tts datamaster it keeps throwing code 64 "right side O2 Lean" The car is running really rough and almost sounds like its skipping. I was thinking it might be the opti but i dont think a bad opti would cause a 02 sensor to not work. Any help or input would be great. I changed all my wires and plugs.
Thanks
TOm

This all happened as i was making a pass on the strip i was about to shift out of 1st gear and the tranny felt like it slipped and kept reving not shifting into 2nd gear. So i let off the gas and press the pedal again everything was fine. Until i was returning to the pits then it sounded like the car was skipping and running rough.

1994 pcm (camaro)
golen 396 LT4 engine(see info)
Raptor 4l60E Trans stage 3 (see info) http://www.transmissioncenter.net/4l...#Price%20Chart
Ford 9inch rear (3:70 gears,posi)
Ported intake to match heads/TB
58mm TB
Cold air intake
Granatelli MAF
1 3/4 Long tube headers w/3 inch collector
Full 3 inch exhaust w/flowmaster (no cat)
Nology Spark Plug wires W/NGK TR55 plugs
Egr block off plates
160 degree thermostat
30 lbs injectors
255 lph racetronix fuel pump w/pump booster harness
2800-3200 Vigilante Converter
LT4 Knock module
Smooth intake bellows
Dynaspark Billet opti Distributor
Alum Drive shaft
Miller Racing Torque arm/crossmember,Lcas,Panhard rod,
Lca relocation Brackets,Subframe connectors
Painless wiring harness
Electric Water Pump
Be cool Alum Radiator
Spal dual cooling fans

SpitotRs305

could it have been detonation? cause i would think that a missfire would actually cause a rich condition if a cylinder had stopped firing... where as detonation would dramaticaly increase exhaust temps and can seem like a skip... that LT4 knock sensor might not have picked it up