2006 Pontiac G6 Q&A
2006 Pontiac G6 Question: I am getting a P0171 code together with a P0466 code.
Check for vacuum leak could set both codes. Possible tank vent problem but no crank, then of course it wont start! No CRANK means the starter is not turning the engine! No START means engine is spinning over but wont fire up and run! Could be fuel tank vent solenoid IF it will crank but not start after fill up. - pushrod
also poss low fuel pressure issue - globalhelper
review when last tuned. possible also alternator. - arturo08