It would be awesome if someone could look at these numbers. My car starts missing and chugging at around 40-50 mph. It has been happening ever since 227/233 cam install. My service engine soon light is on but the auto x-ray says no trouble codes found. In the history codes it says 13 left oxygen sensor fault. If you can get accelerate through the miss it runs good on the top end. I am getting frustrated with this car. The car is a 94z with 9000 miles on it.
tia

Desired idle 800 rpm
learned idle pos 68 steps
blk learn cell 18
tcc locked
knock retard 0
right block learn 124
egr duty cycle 49.9%
right integrator value 128
throttle sensor 1.25 volts
loop status open
injector pulse 7.6mS
R rear oxy sensor ready
ccp duty cycle 0.0 %
left oxy sensor 444 m volts

 

You need to tell us under what conditions you got those numbers.... under low load? with engine fully warmed up? In general, you aren't going to learn a whole lot from a single frame of a scanner.

But you do appear to have a problem with the driver's side O2 sensor. ASSUMING the engine is fully warmed up, and was running more than 3 minutes, it isn't going into closed loop. Appears the driver's side O2 sensor isn't working.... something around 450mV's indicates it isn't working.... at least if that value holds constant. That would also correspond to the DTC 13 problem... are you sure it was a "stored" code, and not "active"

But with just a small part of the data from one frame, its almost impossible to do more than take a wild guess.

 

Fred the car was fully warmed up. Earlier in the day I used the scanner to clear all the codes. Then it came back after about 20 minutes of driving. I scannedit under a decent amount of load because that is when it was really missing.
Thanks for looking Fred
Brandon

 

Un plug your 02 see if it clears up the missing ,then change the 02 if it clears up