2.9 88 Bronco II help

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Jun 18, 2004 | 03:52 AM

jack1i

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2.9 88 Bronco II help

I just purchased a 1988 Bronco 2 2.9. The wires going into the EEC power relay were bare. So with out thinking I started to tape them (forgot about the bat.) and I sparked one of the yellow wires. I now have no fuel pump action. and none of the red wires are hot with the key on. All of the yellow wires are hot all of the time.
Checked fuseable links all that I could find are ok, changed the EEC, swaped out the relay and have kicked myself several times. I am lost please help.

Jun 18, 2004 | 01:29 PM

mrshorty

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From: UT

I suspect you've just overlooked a fuse/fusible link. Otherwise, I don't have an easy answer. Get a wiring diagram and a volt/ohmmeter and work your way down the fuel pump circuit until you find where it burned out.

Jun 18, 2004 | 07:04 PM

jack1i

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Please look at my other post on Bronco. I put much more detail into it. So far all of the links are ok. I can not find the place that has 7 red wires together.

Jun 18, 2004 | 10:30 PM

mrshorty

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From: UT

I don't think that they are all spliced together in the same place necessarily. Remember that wiring diagrams are "schematic" in nature, in that they show the relation of the wiring to other wires/parts, but not always the exact physical layout.

Jun 19, 2004 | 02:38 PM

87 XLT

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From: SoCal

The yellow wire is from the fuse link & is hot at all times. When you turn the key to run 12 volts on red light green closes the EEC relay & the voltage on the yellow passes thru the relay to the dark blue wire (wiring diagram shows dark blue at the relay but beomes red??)
If you are not getting the voltage on dark blue it sounds like that spark might have screwed up the relay, although I dont see why it would. BTW, this wiring diagram is for my 87, but yours should be the same.

Jun 19, 2004 | 03:19 PM

jack1i

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Thank you, I will check that out (dark blue) or what ever it is on mine. I do get power to the red green wire with switch on but I have not checked the dark blue? wire.
I can get the pumps to run if I jump the line to the pumps direct to the battery but my EEC can not see it so it will not start even with the pumps running.

Please see my post on Bronco it is more detailed. I am new here so I posted twice. I have been using the other more.

Thank you again.

Jun 19, 2004 | 04:29 PM

87 XLT

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From: SoCal

OOPS, just reread your first post in this thread & see you allready swapped the relay. Will check out the other thread. Hope you are making some progress.