I have a 1994 chevy 1500 6.5L in my garage with error codes on the ecm
33 map input high
32 egr problem
98 cylinder balance fault #8
95 cylinder balance fault #5
93 cylinder balance fault #3

The 32 and 33 are no big deal to fix, they have been throwing a code since he had the truck. The cylinder code come up and it barely runs. The PMD box was replaced last fall. I can't see 3 injectors going bad at once or the injector pump going bad with only 3 cyl. codes.Any body have any ideas? Thanks.

 

clean grounds first then clear codes and see what comes back

 

as a update, the truck owner came over and he took his truck to a shop.