fuel injectors not pulsing . . . help!
05-29-2017, 01:45 AM
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fuel injectors not pulsing . . . help!
Hi everybody,
I have a 1990 F150 with a straight 6 and efi.
It was running great until the other day when I got a crank no start.
It has good spark.
It will start immediately on starting fluid, but then die right away.
Ran a fuel pressure test and Fuel pressure is good -- new fuel pump, too.
Replaced the ECM and fuel pump relays
I think the fuel injectors all just stopped working. What can I check? This one seems to be a real head scratcher.
Thanks!
Joe
I have a 1990 F150 with a straight 6 and efi.
It was running great until the other day when I got a crank no start.
It has good spark.
It will start immediately on starting fluid, but then die right away.
Ran a fuel pressure test and Fuel pressure is good -- new fuel pump, too.
Replaced the ECM and fuel pump relays
I think the fuel injectors all just stopped working. What can I check? This one seems to be a real head scratcher.
Thanks!
Joe
