2011 Chevrolet HHR "grounding drive wire pcm" Questions

While driving doors lock and unlock, TC light, engine light and power steering light come on. Speedometer goes dead, transmission stuck in 2nd gear. This has occurred intermittently for apx 18 months.

Can a cam shaft issue with a 2011 Chevy hhr cause the car to cut off if not fixed? Not usually. Cam sensor is for injector firing. When they go bad the PCM goes to default mode. (Last known sequence) ...

wire at the relay ground and it will work, has correct amount of freon, do no know how to check control panel that you turn it on with. If you are able to make it satrt by grounding the relay then you

ANY THING YOU CAN THINK OF...THIS IS DRIVING ME CRAZY... The ground wire from the injector to the pcm is open. The injectors share the same power wire but the pcm grounds each one individually to fire

...drive wheels are free to rotate. Backprobe the vss output wire and connect the voltmeter leads from this wire to ground. Select the 20-volt AC scale on the voltmeter. Then start the engine. Place the ...

...pcm. Use a test light that has a significant amp draw to test your power feeds, an ohm meter can deceive you by showing 12v, but that wire may be cracked and full of corrosion, preventing sufficient ...

...drive it, The code should come back and be a p0354. That will confirm that coil pack (which is now in middle cylinder) is bad. Potential causes of a P0356 code include: Short to voltage or ground on ...

...drive. i also got codes p0174, p0171, p2197. trany is shifting sort of rough. could fixing these codes solve that issue too? it has 173k. One of the coil packs have shorted. The code refers to ...

wire for ign voltage- no power Checked continuity and resistance between PCM and CKP,CMP connectors- continuity is present so no shorts or open. Replaced PCM and reprogrammed Theft Detterent using key

...drive it does and when there is a bad ground all the return voltages from the sensors are wrong because they are grounded and the ECM is trying to pull ground through them. Check every inch of the ...