Saturday, June 24th, 2023 AT 5:53 PM
This truck was given to me as a gift. It had been sitting for 4 years. We put gas in it, and it started right up. However, any time we put the vehicle in reverse or drive, the engine stalls immediately. It has the code p0300 and that's the only code currently being pulled up. The catalytic converter has been cut and straight piped from my understanding and it has a lot of miles on it. I'm just trying to figure out where the best place to start to look for the problem is. The spark plugs were changed not long before it got parked. It has a brand-new battery on it.