I have a 2006 Chevy HHR that will crank and get fuel but not get spark. Pulled module and put a plug in to verify no sspark and sure enough no spark. No codes for came or crank sensors nor for crank cam correlation. Visually inspected all fuses and they look new. Tried swapping a few relays related to the starting to see if I could get lucky and it be a relay issue to no avail. I've spun the crank by hand and there is no issue with how the motor turns over. Kind of hit a wall and looking for some suggestions that make sense. Read through a lot of stuff online and it's slim pickings for intelligent hypotheses. Any help would be appreciayed

 

I would suggest pulling the codes. A no spark issue should trigger a trouble code.

 

I have some emission codes for a slight vacuum leak, catalyst efficiency low (which is the cat going bad) mass air flow performance, fuel system lean bank 1, misfire detected, and knock sensor performance. Lol not my car I maintain my stuff but trying to help a broke buddy and he could f*** up adding washer fluid

 

The actual codes are needed, not a verbal description.

 

P0326, p0171, p0300, p0101, p0496, p0101, p0420, p0442

 

Make sure the grounds on the front left corner of the transmission and the radiator support are good.

Most of those sensors are related to the powertrain relay (#26) and/or fuses #45, #42, #33.

Could be the pin in connectors on the ECM have popped out the back. Especially if they have been messed with.

 

P0326 - Knock Sensor (KS) Performance
p0171 - Fuel Trim System Lean
p0300 - Engine Misfire Detected
p0101 - Mass Air Flow (MAF) Sensor Performance
p0496 - Evaporative Emission (EVAP) System Flow During Non-Purge
p0101 - duplicate
p0420 - Catalyst System Low Efficiency
p0442 - Evaporative Emissions (EVAP) System Small Leak Detected

 

p0171, p0101, p0496, p0442. p0420, p0300 could be related i.e: too much air in combustion.

 

I used a test light to check all the fuses and they all check out. Pulled the relays to see if I was getting power to them and I am. I'm about to start checking grounds but if there was a bad ground shouldn't I be getting other symptoms?