Help with loose wires
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Help with loose wires
I've got a few loose wires and connectors and would greatly appreciate any help. My truck is a 97 obs f-150 4.9l vin Z bi-fuel, auto trans.
The first concern is a sensor on the front most area of the intake manifold next to the fuel injector with 3 pins, female. I suspect air intake temperature but am not sure as some say it would be in the air filter assembly. The wires are missing, I would like to know what colors they should be and whereabouts they"should" be found.
Also I have two loose small gauge wires coming from under the firewall in a factory conduit. According to a Haynes manual diagram I think they are the fuel pump grounds, but they seem too small to power a fuel pump. Btw this in a bifuel vehicle so why would one fuel tank have 2 small orange wires? The fuel gauge reads well below zero constantly. Wire diagrams suggest both of these oranges go to chassis ground, I'd like to be sure before I'm making sparks.
Additionally there is a male two pin connector maybe 6 inches long right next to the underhood fuse box. One wire is green with thin red and the otherwire is black and yellow. It comes from the main large wire harness.
The trucks symptoms are idles good, runs good at all power requests, engine speeds, and gears, but occasionally maybe 10% of the time seems to have 10% engine power and motor shake then one minute later or ten just runs fine.
The first concern is a sensor on the front most area of the intake manifold next to the fuel injector with 3 pins, female. I suspect air intake temperature but am not sure as some say it would be in the air filter assembly. The wires are missing, I would like to know what colors they should be and whereabouts they"should" be found.
Also I have two loose small gauge wires coming from under the firewall in a factory conduit. According to a Haynes manual diagram I think they are the fuel pump grounds, but they seem too small to power a fuel pump. Btw this in a bifuel vehicle so why would one fuel tank have 2 small orange wires? The fuel gauge reads well below zero constantly. Wire diagrams suggest both of these oranges go to chassis ground, I'd like to be sure before I'm making sparks.
Additionally there is a male two pin connector maybe 6 inches long right next to the underhood fuse box. One wire is green with thin red and the otherwire is black and yellow. It comes from the main large wire harness.
The trucks symptoms are idles good, runs good at all power requests, engine speeds, and gears, but occasionally maybe 10% of the time seems to have 10% engine power and motor shake then one minute later or ten just runs fine.
Thread Starter
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Joined: May 2013
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I've put some photos of the logos wires and connector and sensor in my album..Ford Truck Enthusiasts Forums - darbcng's Album: cng1
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