Stalls when put in Drive,Code 629. Erratic idle.
Fleet Owner
Joined: Oct 2005
Posts: 20,786
Likes: 1,751
From: Kentucky
If you have a gray colored Ignition Control Module (ICM) you will get code 212 every time you turn on the vehicle. You need a black ICM, used on 1994 and later F-Series/Broncos with CCD Ignition. To compound the issue even most Ford manuals and every single aftermarket parts lookup will specify the gray version which is 100% wrong. If you have the proper black Ford/Motorcraft ICM installed then you have a wiring issue between the ICM and computer for the IDM signal.
I am soft of glad and very confused on yet another replacement PCM that actually fixed your Code 629 issue. Very odd the others you used still had the same symptom. Perhaps you had a short that was burning out the driver transistors in the PCM. With all of the wire chasing you may have fixed that short. I'll keep my fingers crossed.
Your fuel pressure issue is another head scratcher. I would suspect a faulty fuel pressure tester if you are using the same one. Might be worth a try to use another. At 26 PSI I would expect the engine would not start let alone run.
I am soft of glad and very confused on yet another replacement PCM that actually fixed your Code 629 issue. Very odd the others you used still had the same symptom. Perhaps you had a short that was burning out the driver transistors in the PCM. With all of the wire chasing you may have fixed that short. I'll keep my fingers crossed.
Your fuel pressure issue is another head scratcher. I would suspect a faulty fuel pressure tester if you are using the same one. Might be worth a try to use another. At 26 PSI I would expect the engine would not start let alone run.
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Freshman User
Joined: Aug 2021
Posts: 33
Likes: 9
If you have a gray colored Ignition Control Module (ICM) you will get code 212 every time you turn on the vehicle. You need a black ICM, used on 1994 and later F-Series/Broncos with CCD Ignition. To compound the issue even most Ford manuals and every single aftermarket parts lookup will specify the gray version which is 100% wrong. If you have the proper black Ford/Motorcraft ICM installed then you have a wiring issue between the ICM and computer for the IDM signal.
I am soft of glad and very confused on yet another replacement PCM that actually fixed your Code 629 issue. Very odd the others you used still had the same symptom. Perhaps you had a short that was burning out the driver transistors in the PCM. With all of the wire chasing you may have fixed that short. I'll keep my fingers crossed.
Your fuel pressure issue is another head scratcher. I would suspect a faulty fuel pressure tester if you are using the same one. Might be worth a try to use another. At 26 PSI I would expect the engine would not start let alone run.
I am soft of glad and very confused on yet another replacement PCM that actually fixed your Code 629 issue. Very odd the others you used still had the same symptom. Perhaps you had a short that was burning out the driver transistors in the PCM. With all of the wire chasing you may have fixed that short. I'll keep my fingers crossed.
Your fuel pressure issue is another head scratcher. I would suspect a faulty fuel pressure tester if you are using the same one. Might be worth a try to use another. At 26 PSI I would expect the engine would not start let alone run.
I did a half *** test on my fuel pressure gauge, I checked my tire with it then compared to a reading from a tire gauge and they were within 1 psi of each other so regardless of a new pump I still have way low fuel pressure which probably has nothing to do with the misfire.
I'm back to work after medical leave and between that other unfinished stuff the Bronco is on the back burner, besides that I'm out of ideas and tired of fu*king with it. I just have a gut feeling its the ECM. I think the trans problem was just a fluke and I think the ECM place I used just repaired damage the saw and didn't really test these things
Fleet Owner
Joined: Oct 2005
Posts: 20,786
Likes: 1,751
From: Kentucky
I did a half *** test on my fuel pressure gauge, I checked my tire with it then compared to a reading from a tire gauge and they were within 1 psi of each other so regardless of a new pump I still have way low fuel pressure which probably has nothing to do with the misfire.
I do not blame you at all. I would have torched it a long time ago.
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Freshman User
Joined: Aug 2021
Posts: 33
Likes: 9
I replaced the regulator and checked the filter the other day and pressure is still low.
When I pulled it out of the garage today it ran fine for about three minuets then started misfire not as bad as usual but bad enough. When I get some free time I might pull the upper intake off and check the engine harness and have the injectors serviced.
When I pulled it out of the garage today it ran fine for about three minuets then started misfire not as bad as usual but bad enough. When I get some free time I might pull the upper intake off and check the engine harness and have the injectors serviced.
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Freshman User
Joined: Aug 2021
Posts: 33
Likes: 9
Update, the Bronco is finally fixed.
The stalling/code 629 was caused by the wrong PCM from AutoEcm.com, after some research I believe they were sending me F150 PCM's with a Bronco BO01 label and evidently the two aren't interchangeable
The misfire that was driving me insane was caused by a defective(out of the box) Delphi ICM, a new Motorcraft ICM fixed the problem. This is the first time I didn't buy a Motorcraft part and it bit me in the a$$.
So, always use Motorcraft and if you need a PCM have your original repaired.
The stalling/code 629 was caused by the wrong PCM from AutoEcm.com, after some research I believe they were sending me F150 PCM's with a Bronco BO01 label and evidently the two aren't interchangeable
The misfire that was driving me insane was caused by a defective(out of the box) Delphi ICM, a new Motorcraft ICM fixed the problem. This is the first time I didn't buy a Motorcraft part and it bit me in the a$$.
So, always use Motorcraft and if you need a PCM have your original repaired.
Fleet Owner
Joined: Oct 2005
Posts: 20,786
Likes: 1,751
From: Kentucky
There is no difference in the E4OD transmission or wiring for a 1995 Bronco versus a 1995 F150 assuming both PCMs are for a 5.8L engine and E4OD transmission. Very odd indeed.
Glad you got the issues worked out!
Glad you got the issues worked out!
Fleet Mechanic
Joined: Aug 2002
Posts: 1,568
Likes: 33
From: Swansea SC
Great, Glad to hear ,I did read where other forum members had problems /troubles after dealing with Auto Ecm. One even later ordered a Rock auto ECM/ Cardone / BSM ( remanuractured )that cleared up his issue.I do go into 3 other forums and can not remember which ,but I do agree with Randy ,no difference .I know the codes should be the same .TR
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Freshman User
Joined: Aug 2021
Posts: 33
Likes: 9
I still have the NAT1 PCM I bought from a FSB member which also caused the 629 code and stalling in drive, for the hell of it I put it in a friends F150 with identical engine/drivetrain thats in my Bronco and it worked perfectly
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Fleet Owner
Joined: Oct 2005
Posts: 20,786
Likes: 1,751
From: Kentucky
Makes you wonder if a NAT1 PCM is actually for a 5L/4R70W F150....
Yes I know that's a stretch. If that was the case I would expect more errors related to the output shaft speed sensor (OSS).
Yes I know that's a stretch. If that was the case I would expect more errors related to the output shaft speed sensor (OSS).
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