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Bad ECM/PCM?
I ended up completely replacing the VP44 and related relays. The VP44 shorted out and as a result popped 2x relays and 1x fuse. As for relays/fuses: FASS relay (If you haven't installed a FASS its what bridges power/ECM signal/signal and power back to the FASS) Fuel Pump relay under the PDC (right above the power outlet relay) I also had to replace the Engine control 2 fuse. Hope this helps!
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Bad ECM/PCM?
Found the answer! Turned out to be a dead VP that shorted out and killed a few relays on the way. Replaced the VP/relays and shes back up and running. Looks like the fuel we were seeing in the attached video was actually just lift pump pressure. From what I've gathered if your truck isn't making a mess while cranking with a line completely unseated then you may have a dead VP. Thanks for all the help fellas.
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Bad ECM/PCM?
4000-4500? I can barley feel the pressure with my finger. I get no spraying when I just crack the line it’s more of a slow seep.
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Bad ECM/PCM?
How much pressure should I be seeing out of my injector lines? As you can see in video there’s isn’t much pressure. Not really the crazy “spraying” everyone says to expect.
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Bad ECM/PCM?
Still nothing. I will admit its never have an OBD reader connected before and the connection seems a bit sketchy (Power comes on and off if I move the OBD port too much) so unsure if it was even working prior to my current problems.
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Bad ECM/PCM?
I have power to the VP/Lift pump and a WTS so that leads me to believe it's not the ECM. All grounds have been checked/replaced. Are there any suggestions on sensors I maybe be missing that can cause this? I'm replacing the crankshaft position sensor today.
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Bad ECM/PCM?
Still can’t get the truck running. I have the WTS now so I don’t think it’s an ECM. Included a video of the fuel I’m getting through the lines, is it normal? IMG_1911.MOV
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Bad ECM/PCM?
It’s a 1998.5 Ive check every injector line and I’m getting fuel. OBD won’t connect so I can’t get any codes. I have a wts light briefly then a check engine light. Will crank all day but won’t fire.
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Bad ECM/PCM?
Found a blown fuse so that fixed the gauge problems. Truck still won’t start, I have power to both the VP and lift pump. Fuel is getting through the lines but no fire. Dash also has a check engine light now.
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Bad ECM/PCM?
I’ve never actually seen the WTS light with this truck even when it ran. Tried hooking up the OBD reeder to it and it won’t connect. What grounds should I be looking for?
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Bad ECM/PCM?
So I left my truck sitting for about a week while I was on vacation. I try to start it up for the first time and it'll crank all day but won't fire. My gauges aren't working, my odo is flashing my mileage, and my lift pump isn't getting any power. What do I need to look into besides checking all the grounds and fuses? Does this sound like a bad ECM/PCM? Thanks for any help. The truck is a 1998.5
MrMerica
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