Early 99 7.3 No start problem
Got Data?
Joined: Dec 2012
Posts: 4,274
Likes: 1,410
From: Lake Stevens, WA
By unplugged, do you mean the Hydra circuit board has been removed from the PCM? Not just unplugging the switch, correct?
The CPS - how do you know it's good? Has it been replaced recently? Is it a Motorcraft part?
Does the tach move when you crank it? I think on the E99 through 2001, you should be able to see the tach move during cranking - indicating the CPS signal is present.
What OBDII dongle did you purchase?
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New User
Joined: Jan 2021
Posts: 13
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Shoot, sorry about the frustration. I'm reading through the no-start flowchart as well to get some ideas.
By unplugged, do you mean the Hydra circuit board has been removed from the PCM? Not just unplugging the switch, correct?
The CPS - how do you know it's good? Has it been replaced recently? Is it a Motorcraft part?
Does the tach move when you crank it? I think on the E99 through 2001, you should be able to see the tach move during cranking - indicating the CPS signal is present.
What wireless OBDII dongle did you purchase?
By unplugged, do you mean the Hydra circuit board has been removed from the PCM? Not just unplugging the switch, correct?
The CPS - how do you know it's good? Has it been replaced recently? Is it a Motorcraft part?
Does the tach move when you crank it? I think on the E99 through 2001, you should be able to see the tach move during cranking - indicating the CPS signal is present.
What wireless OBDII dongle did you purchase?
It's a Van Gogh
Joined: Feb 2010
Posts: 7,813
Likes: 1,335
From: Elk Grove, CA
If the tach is moving the CPS is ok, no need to replace it.
Turn off all the other apps except Forscan then try again. Also check out some how/to videos, many out there.
Water coming in from the leaky windshield is a pretty common problem. Leads to corrosion in the fuse panel down there. So that is a good place to look for trouble.
Turn off all the other apps except Forscan then try again. Also check out some how/to videos, many out there.
Water coming in from the leaky windshield is a pretty common problem. Leads to corrosion in the fuse panel down there. So that is a good place to look for trouble.
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