I'm Not sure ...... I wouldn't suspect that the timing is out on the vehicle. I would first price and replace the timing sensor. Or if you have access to a isuzu elctric manual find out if the component can be tested with a multi meter.

The other suggestion i have is contact the previous owner and find out who did the work and see if you can bring it back in.

- Jason


2004 GMC
1987 Samurai

Go Army