added new wire to feed E16 and, check engine light on, fuel pump started , cranked all is well , truck started and ran. Knowing what i know now, AND having schematics I will start at PCM I guess...

has anyone seen low power feed from battery to ecu, when plugged in ?, this is pin E16, checking power by back probing connector and I only see abou1.5 volts, orange wire, E15 has pink wire from ign...

update, checked for power at ecu, battery power,orange e16 drop to 1.5 volts when plugged in , ignition power there 12.5 volts, when ecu is unplugged I see 12.5 on e16 connector, but drops when...

hi fellas,
thanks for replys, have the ecu 16197427, have swapped, no change, all fuse good, no power from ecu?, no check engine light, no response when I jumper diag ,will use the above guide to...

hi,

thanks for letting me join, looks like a great site for fuel injection. I am trying to diagnose a problem with fuel pump relay not coming on for 3 sec start, coil is good on relay, and pump...

hi,

thanks for letting me join, looks like a great site for fuel injection. I am trying to diagnose a problem with fuel pump relay not coming on for 3 sec start, coil is good on relay, and pump...