Reply to thread

Message: <blockquote data-quote="Chevy Red Panda" data-source="post: 21581" data-attributes="member: 11893">Not sure if this is the correct forum but please direct me if its not.So long story short we removed my transmission (2002 Silverado 5.3) and replaced the rear main seal. During the removal of the transmission we forgot to unbolt the neutral safety switch (NSS).As we were lowering the transmission the glue for the plugs on the NSS stayed together and basically pulled the NSS into two pieces. Didn't know the glue was that strong lol. We replaced the NSS with NAPA Auto parts model.After putting everything back together it started up just fine however the check engine light was blinking now. The codes were P0200 and P0300 which shoes an open injector circuit and multiple misfires. We checked to make sure all sensors were connected and not damaged.We checked the injector wires last night to see if we could find a direction for diagnosis. All injectors on both sides are getting 12v to the power wires but for the ground wires, the driver side injectors all showed zero and the passenger side wires were higher than zero and increased in number as you got closer to the firewall.Besides maybe a sensor being covered in oil from the original Rear Main Seal leak what would be the next steps for fixing the misfire engine codes.Any help is appreciated.</blockquote>