Byers3398
New member
2011 Chevy Traverse 3.6L starts and immediately dies unless accelerator is held. Codes P0496, P0446 and P0451. Purge valve and rear canister vent valve have been replaced. Throttle body was checked and relearned, MAF cleaned, and fuel-tank pressure-sensor wiring inspected. Could this be low fuel pressure, a PCV/vacuum leak, or something else? What live-data readings should we check next?
