my 98 gts heffner supercharged viper started throwing these 2 codes, replaced both front o2 sensors with bosch units, replaced tps,and map sensor,also checked for intake leaks, it throws these codes after about 50 miles, any thoughts?
If both of those codes came on at the same time i would suspect a wiring harness issue going to the front oxygen sensors. If you are clearing the codes, you will get the faults after 30-60 miles until the problem is fixed.
That would be the easy way to check , just unplug both and see what codes come up. I have had a few bosch sensors fail the heating cycle and i like NTK sensors myself, but since the codes came on togther my 1st place to check would be the wiring harness to the sensors
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