P0650 and P0134 Codes??

[Kros383SS]

I finally bought one of those Actron code readers so I could figure out whats going on. It is running really rich to start off with. Takes about 3 key cycles for the lite to come on too

I know the P0650 is MIL control circuit malfunction......Lite comes on with key on and goes off at startup and is on now so I dont know what to ck there.

The P0134 is O2 sensor circuit inactivity bank 1 sensor 1. I am using the Vette o2 sensors and have checked voltage to both sensors. The sensors are behind my band clamps that connect to the LT's and I do have some leaks because of the band clamps on both sides.

Only thing I can think off is put the sensors back in the headers before the band clamps and hopefully the code wont come back.

I'll post back up if that help or not


It gave me 3 codes with P0134 twice so Im a little confused by that.

[farmtruc]

The vette sensors are meant to or attempt to correct for the inactivity issue. They don't necessarily allow u to move the sensors further downstream. I'd definitely move them forward as far as possible. Check them with a scanner afterwards to ensure the u2 is toggling up and down evenly reaching about 20 to 900mv. It's probably lazy now hovering around 650mv causing the rich issue.