have a 97 gmc jimmy. eng light on, code said mass air flow and or crank sensor. changed both, still get same code. going crazy . any ideas on this one?

TxGreaseMonkey

. Did you reset the computer, after installing the new sensors?
. Don't use any WD-40, electricial contact cleaner, or brake cleaner on sensor connections. If you did, blow off with compressed air and dress with a small Swiss file.
. Next step is to check ECU and connections.

edlowrider

yes

edlowrider

still checking for shorts and connections