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1988 Ford E-Series Van Did I damage computer?

Tiny
DOCFIXIT
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You replaced what control unit? The ECU?
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Tuesday, March 16th, 2010 AT 12:37 PM
Tiny
JMGRIF
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EEC as its called on my old unit, the computer. Like I said before I still have to have jumper wire to get the fuel pump to go. It wants to start, but it sure sounds like its firing wrong
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Tuesday, March 16th, 2010 AT 8:43 PM
Tiny
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Upper right side dash where you where working there is an Inertia switch that stops power to fuel pump in accident. May have activated should be smalll possibly gray box with two wires and red button on bottom. Press red button it will reset switch.
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Wednesday, March 17th, 2010 AT 12:18 PM
Tiny
JMGRIF
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I tested w/ test light & both leads out of crash sensor light up w / key. The wire at the harness, by the firewall, there is none.
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Wednesday, March 17th, 2010 AT 8:51 PM
Tiny
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Orange/Light blue wire comes from pump relay so relay is not closing. Check for power at relay TWO terminals should have voltage. Go back and check all fuse links at starter relay with test light
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Thursday, March 18th, 2010 AT 12:00 PM
Tiny
JMGRIF
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Fuel relay, yellow full time, o/lb, on for appox 3 sec. Red on w/key, ltgray/ltgrn, slowly & faintly comes on. There's 2 fuseable links off battery side of start relay, both hot past fuseable links.
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Friday, March 19th, 2010 AT 10:38 AM
Tiny
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Then fuel pump relay is not staying closed. Orange/lt. Blue on for 3 sec is priming what happens to voltage on wire when cranking?
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Friday, March 19th, 2010 AT 2:30 PM
Tiny
JMGRIF
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There is 13 something volts during prime & crank phases.
During this test, the engine fired up & ran for a bit, till I assume it ran out of gas. I jumped the fuel pump & it ran (Idled mostly, except working the the throttell by hand, all be it a bit rough.
Is there a stop betwwen crash sensor & wire harness @ firewall. I checked the fuses, all ok. Have power & at sensor, in & out, at prime & crank.
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Sunday, March 21st, 2010 AT 5:08 PM
Tiny
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Is there voltage at fuel pump relay in and cranking?
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Monday, March 22nd, 2010 AT 8:00 AM
Tiny
JMGRIF
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Yes, that is where it was tested at.
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Monday, March 22nd, 2010 AT 9:28 AM
Tiny
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Then pump should be running
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Monday, March 22nd, 2010 AT 11:40 AM
Tiny
JMGRIF
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Sorry not sending last reply, tried once, something got messed up & I forgot to try again. The reason fuel pump did. Nt work was a piece of fuseable link between 2 harnesses that supplied power to pump, once it was replaces, it worked fine.
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Tuesday, June 15th, 2010 AT 1:39 PM

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