Hello Scotty,
I have a 2011 Buick Lacrosse 3.6l V6 FWD. I had to replace both catalytic converters and now have an issue with multiple sensors reporting low voltage:
1) exhaust camshaft position actuator solenoid valve control circuit low voltage bank 1 and bank 2
2) intake camshaft position actuator solenoid valve control circuit low voltage bank 1 and bank 2
3) evaporative emission (EVAP) purge solenoid valve control circuit low voltage.
I've checked the connectors, they are firmly attached. I was thinking that a main harness may be the root cause of the issue. I have been looking for a wiring diagram; so I can figure this out. I would like your advice on this problem.
Thank you,
K.M. Warren
Cordova, TN
Well, if it occurred after you replace the converters pretty much within a few days, odds are the wiring. Harness has been damaged where that work was done. So look closely and connector. See if things got pinched or got melted by touching the exhaust.
