Pontiac Problems? Ask a Mechanic for Answers ASAP
where are you at with it ?
which year wiring harness is on the engine now ?
the purple/white should be 5 volts with the key ON and the grey/black should be a ground
are you 100 % all the grounds are connected and clean and tight on this engine ?
that grey/black is not showing a good ground
if you make a good temp ground and attach it to the grey/black wire at the crank sensor will you get spark ?
if that works then either leave the ground you make or the grey/black wire is bad or the computer has a bad ground or the computer is bad
well lets hope this gets the job done
i hope the wiring schematic can help you and double check those grounds