P0443 Fault Diagnosis for 2007 Chevy HHR 2.2L - EVAP Purge Valve Issue
I've already tested the solenoid and it's functioning properly. The engine turns over but does not crank up — any other potential causes? This issue is specifically related to the P0443 diagnostic code on my 2007 Chevy HHR with a 2.2L engine. The vehicle shows no signs of starting despite the engine turning over. Could this be due to an EVAP system malfunction or another underlying component failure?
Turning over and cranking are essentially the same — it means the starter motor is spinning the engine. Your vehicle shows a P0443 code, which indicates an issue with the EVAP purge valve circuit. Check whether the purge valve is properly closed and not allowing vacuum to flow into the EVAP system. For a no-start condition, also verify fuel pressure using a gauge, confirm spark at the plugs, and check for injector pulsing — these are key diagnostics to rule out fuel or ignition-related issues.