Hi, i have p0300 & p0339 codes which i cannot solve.
The following parts have been replaced:
1)ignition coil, wires, plugs
2) crank sensor (× 3), cam sensor
3) throttle body sensor
4) pcv valve

Compression has been tested and all cylinders were good

Symptoms:
Starts and idles fine but will not go over 2500 rpm's without jerking and sputtering. Can drive and will shift and pick up speed to 60 mph as long as i dont rev above 2500 rpm.
check engine comes on and stays flashing

Pulling my hair out with this problem. Don't know what else to try. Any/ all help appreciated
thanks Rossk
rosskennedy1960@gmail.com

 

year make modal engine size ?

 

2007 pt cruiser base model 2 4 litre engine non-turbo

 

What brand Crank sensor did you use? and spark plugs what brand?

 

Crank sensor was a Napa Eklin brand
plugs were Champion (oem)

 

Use only OEM Mopar cam and crank sensors. Aftermarket tend to be problematic in Chrysler products.
YouTube ScannerDanner How to test crank sensor with a volt meter
This is a great video for testing both cam and crank sensors easily with a simple volt meter