Stalling

[StanB]

My truck is stalling and throwing codes 17, 18 and 35. Is this a bad injection pump or PMD??

[hraney]

My truck is stalling and throwing codes 17, 18 and 35. Is this a bad injection pump or PMD??

I would say PMD. My 95 had 2 injection pumps put in (under warranty) for those same codes. But I have never had an injection pump just "go bad". They would always start surging or slobbering out the tail pipe first. So I am guessing my 2 pumps were also PMD's, but the GM book said "replace injection pump" so they did.