Help!
Thread Starter
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New User
Joined: Jan 2022
Posts: 14
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it was running great and yes I unhooked the battery before removing the old starter.
Lead Driver
Joined: Jan 2019
Posts: 5,081
Likes: 865
From: N.W. Alabama
yes, the easy button, ($35)Innova 3145 OBD I ford code reader, or free, if your good at counting flashes, I'm not it always comes out 122, 221, or 8675309(thats not rite!)
see 2 links below, you should get 2 digit codes
Fuel Injection Technical Library » How To Run a Self-Test
(16) How to read a check engine light code on a Ford 1983-1995 EEC 4 system - YouTube
see 2 links below, you should get 2 digit codes
Fuel Injection Technical Library » How To Run a Self-Test
(16) How to read a check engine light code on a Ford 1983-1995 EEC 4 system - YouTube
Thread Starter
|
New User
Joined: Jan 2022
Posts: 14
Likes: 0
yes, the easy button, ($35)Innova 3145 OBD I ford code reader, or free, if your good at counting flashes, I'm not it always comes out 122, 221, or 8675309(thats not rite!)
see 2 links below, you should get 2 digit codes
Fuel Injection Technical Library » How To Run a Self-Test
(16) How to read a check engine light code on a Ford 1983-1995 EEC 4 system - YouTube
see 2 links below, you should get 2 digit codes
Fuel Injection Technical Library » How To Run a Self-Test
(16) How to read a check engine light code on a Ford 1983-1995 EEC 4 system - YouTube
Tuned
Joined: Jan 2021
Posts: 377
Likes: 81
yes, the easy button, ($35)Innova 3145 OBD I ford code reader, or free, if your good at counting flashes, I'm not it always comes out 122, 221, or 8675309(thats not rite!)
see 2 links below, you should get 2 digit codes
Fuel Injection Technical Library » How To Run a Self-Test
(16) How to read a check engine light code on a Ford 1983-1995 EEC 4 system - YouTube
see 2 links below, you should get 2 digit codes
Fuel Injection Technical Library » How To Run a Self-Test
(16) How to read a check engine light code on a Ford 1983-1995 EEC 4 system - YouTube
https://www.f150forum.com/f10/how-retrieve-trouble-codes-obdi-10907/
Or if you're like me and need to read more modern cars/trucks, I got an Innova 3170 with the adapters. works great also.
Mountain Pass
Joined: Jul 2020
Posts: 154
Likes: 18
From: Northern California
Might check to see if you have fuel pressure at the fuel rail by depressing the Schrader valve on the fuel rail with the key in the run position. Fuel should squirt out. Check the pressure with a gauge if you have access to one. If you have pressure my bet is on bad ECM not triggering the injectors.
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Tuned
Joined: Jan 2021
Posts: 377
Likes: 81
I was going to reply with something like how the heck do you mess up a PCM by swapping out the starter. But I guess you could possible do some damage when hooking up the battery. About half way through my reply, it dawns on me that they do reset their memory if disconnected for a period of time, when this happens, it will run the pumps continuously until it starts the truck. May have missed this info above, but Does it kick over if you use starter fluid? If not, are you sure you are getting spark?
Hotshot
Joined: Jun 2015
Posts: 12,871
Likes: 2,445
Same here. That’s why I have a code reader.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
I completely disagree with your statement. Why would resetting the power to the computer cause it to run continuously when you cycle the key from the Off to Run position?
That function is hard coded in the computer. No amount of power cycling or clearing codes is ever going to change the hard coding. As I stated before the most common symptom of a bad computer is the fuel pump runs continuously when you cycle the key from Off to Run. This caused by the timer inside the computer not resetting. Whether or not you physically see any burned or leaking components inside the computer case is luck of the draw.
If the OP can actually get any codes out of the computer remains to be seen. I suspect, as others have found, there will most likely be no codes. Another sign of a bad computer. If they do get codes they may be gibberish.
For the sake of the OP's wallet thickness I hope they can find some other tangible clue that replacing the computer is the most likely resolution here.
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New User
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Shrader
I completely disagree with your statement. Why would resetting the power to the computer cause it to run continuously when you cycle the key from the Off to Run position?
That function is hard coded in the computer. No amount of power cycling or clearing codes is ever going to change the hard coding. As I stated before the most common symptom of a bad computer is the fuel pump runs continuously when you cycle the key from Off to Run. This caused by the timer inside the computer not resetting. Whether or not you physically see any burned or leaking components inside the computer case is luck of the draw.
If the OP can actually get any codes out of the computer remains to be seen. I suspect, as others have found, there will most likely be no codes. Another sign of a bad computer. If they do get codes they may be gibberish.
For the sake of the OP's wallet thickness I hope they can find some other tangible clue that replacing the computer is the most likely resolution here.
That function is hard coded in the computer. No amount of power cycling or clearing codes is ever going to change the hard coding. As I stated before the most common symptom of a bad computer is the fuel pump runs continuously when you cycle the key from Off to Run. This caused by the timer inside the computer not resetting. Whether or not you physically see any burned or leaking components inside the computer case is luck of the draw.
If the OP can actually get any codes out of the computer remains to be seen. I suspect, as others have found, there will most likely be no codes. Another sign of a bad computer. If they do get codes they may be gibberish.
For the sake of the OP's wallet thickness I hope they can find some other tangible clue that replacing the computer is the most likely resolution here.
Thread Starter
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New User
Joined: Jan 2022
Posts: 14
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Shrader
Might check to see if you have fuel pressure at the fuel rail by depressing the Schrader valve on the fuel rail with the key in the run position. Fuel should squirt out. Check the pressure with a gauge if you have access to one. If you have pressure my bet is on bad ECM not triggering the injectors.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
What is it going to take for you to believe everyone that has already pointed out what your problem is? You have a broken PCM and no action beside replacing it will get your truck running again.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
You have pressure since the fuel pumps are running continuously. But the injectors are not getting pulsed since the computer is bad.