Dark Horse

How do you post images and what file extensions? It gave me an error "you are not allowed these file extensions in this community"???

Here is the 1991 Pioneer that we are doing for a portfolio truck/shop truck for the business I have. Myself and a friend are starting a Custom 4x4 business, build ups/flips and comissioned builds. For my business I do Hydrographics (It is also know Camo Dipping, Water TransferPrinting Etc) it is applying a pattern to parts. That is how they put camo on guns and archery bows, atvs etc. You can do 100's of different patterns. The plan for this build is 6.5" Rough Country Lift, 35" Tires, Body Color/Dipped 15" Wagon wheels, CB Radio, Custom Rock Sliders, Front Bumper Guard, Custom Rack, Winch, Bushwacker Flat Fender Flares, The rack, rock sliders, bumper/winch guard are going to be painted new ford f150 burgundy red, to match the burgundy interior of the Comanche. Body is going to be Grizzly Grip Bed Liner (Safari Tan), Wheel lips, Vent Plastics, Door handles, Fender flares, Mirrors are all going to be dipped in a desert tan camo. I will post as it goes. Want the build to be semi done Labor Day week end. Lots of work left.

Turns out it was the fuel pump. Pressure guage was 15psi at rail, at filter, and between filter and tank. Took tank out, replaced the pump and vwa-la runs good. Thanks for the help guys.

Map Sensor reads 5.02 volts when tested. Does not seem to be the issue.

Could the sensor be bad intermittely or is it a case of on/off good/bad? Also what voltage am I looking for (5 volts) on the purple? What is is range? Thanks for the help.

The Exhaust was gifted to me out of a newer Chev that owner was disguarding, and I needed one bad. The Codes that came up were 12, 35, 33, 14, 23, 22, 55. Battery Disconnect, Cooling fan runs, No AC in truck, Map Sensor (how do I check and if I disconnect it will die, So is that mean it is working?), Air intake sensor (Cause backfire?), coolant Sensor, End of codes. Keep them coming please?

Please Help, I have a 91 MJ 4L HO with engine electrical issues. I will break it down for ease of ruling stuff out. Engine ran okay when purchased 2 months ago went to restore/build up on it. Tuned up engine New plugs (not platinum, standard plugs) New Wires New Fuel filter New Cap New Rotor Cut Cat Conv out, new 2 and 3/4"exhaust and muffler (not from jeep), Disconnected battery when I welded on new pipes to existing. Engine now idles fine but when put under load (in gear) backfires through throttle body, pukes oil/gas mixture into air box, plugs black, no power, Checked plugs/wires crossed multiple times, checked throttle position sensor, checked resistance on new wires, checked coil, checked under cap for arcing issues, checked seems like everything. Have multiple errors and most are Voltage to muliple sensors are above/below range. I can give a breakdown if that will help you guys? Could some of you more experienced guys tell me if you have had these issues, and where to look next. Fuel Injectors? Seem okay but all plugs are black on all cylinders. Timing out? How do you get back into time? Coil? could the coil be intermitent? would it cause same issues as an engine out of time? I have read that MJ 4L use the cam sensor for timing and that they "can"t go out of time?" Please Help