need help,where does ground go?
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Junior User
Joined: Nov 2010
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need help,where does ground go?
I pulled injectors for some cleaning, noticed more and more broken and stripped wires so im going to start repairing them. theirs a ground by the EEC has a bare metal wire in it that goes to the harness wraps up with the pip, spout, and ign grd. and ends at the TFI. the bare metal ground is cut of a ways from the tfi connector and was taped off, where is that ground supposed to go? 88 bronco 4x4, dist mounted tfi.
Tuned
Joined: May 2004
Posts: 334
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I have an 89 2.9. I don't see a gound by the spount on mine. I have a metal ground from the back of the block on the left bank up to a fastener on the firewall. This is a separate gound wire, not splice in to anything else. Cheers
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Junior User
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nope, not the one. one i'm trying to find out about has a bare ground wire that is wrapped alum heatshied lookin tape along with the pip spout and ign grd wires, grounded at the EEC and runs through the harness to the dist.
Cargo Master
Joined: Mar 2007
Posts: 2,935
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From: Arcadia, Fla
That's the PIP shield ground. Some are not grounded at the engine block and some are depends on vehicle. But it is grounded at the ECU to keep signal noise out of the PIP. Do a OHM check with it to batt gnd and you should have contunity of less than 2 ohms, any thing over you will have issues with crappy engine running.
Tuned
Joined: May 2004
Posts: 334
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If you have no spark, the distributor mounted control module would be a good candidate. It sounds like your coil is checking out good. The parts stores can check the control module, and the test is reliable, in my experience.
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didn't run from the get-go. supposedly just needed the fuel tank mounted fuel pump, replaced that and tank, no run, replaced fuel lines, filters, hi-pressure fuel pump, fuel pressure reg, icm, cap, wires, rotor, coil, relays, map sensor, ignition switch, checked wire harness from dr side to pass side to eec, tps, iac checks good, gonna recheck some wires, timing, act,ect, and have another eec to put in it. luckily the truck didnt cost anything to buy, just parts, so far. real clean with all original equipment, even has the original hubcaps and beauty rims, so i think it has been covered, or garaged for most of its life, no evedence of having a hard life. that'll change once i get it running. feel free to throw opinions, i'm runnin out of ideas.
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