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Problem with PO175 - Rich Bank 2
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MROD
User
Oct 16, 2009, 6:18 PM
Post #26 of 33
(3211 views)
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Re: Problem with PO175 - Rich Bank 2
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Update:
This is getting comical to say the least.
Installed the replacement ECM and the truck will NOT fire at all - not even a sputter. Ran scan and got code P1639 which says "PCM Vehicle Identification Block Corrupted or Not Programmed".
The ECM was supposed to be flashed by Rockauto/Cardone, but I don't think it was. So now it looks like I will have to send it back for the flashing (programming) I paid for. Gezz.
Can anyone out there confirm if when you install a Ford replacement ECM WITHOUT "flashing" that the vehicle will not fire?
I'm going to reistall my old module and I'm sure it will fire right up.
Till next update . . . .
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 16, 2009, 6:21 PM
Post #27 of 33
(3205 views)
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Re: Problem with PO175 - Rich Bank 2
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I was under the impression that those had to be flashed in the vehicle. Personally, I would never use a Cardone computer in anything. I've had too many bad ones in the past. I know GM won't even accept them as cores most times.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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MROD
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Oct 16, 2009, 6:29 PM
Post #28 of 33
(3198 views)
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Re: Problem with PO175 - Rich Bank 2
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Well your just brimming with good news Hammer Time. That's the problem if your not experienced, you have no idea what to look out for. I'm in the fire now on this ECM, so I'll hope for the best. I'm just about beaten down on this one.
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MROD
User
Oct 17, 2009, 1:38 PM
Post #29 of 33
(3184 views)
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Re: Problem with PO175 - Rich Bank 2
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For those interested:
When I installed the ECM and the engine did not fire, I ran a key on engine off scan and got a code P1639 "PCM Vehicle Identification Block Corrupted or Not Programmed". I suspect this is why the ECM is dead for now.
Rockauto told me I needed only flashing and not VIN programming. I can't blame Cardone - they were only doing what Rockauto told them to do. Now I'll send it back to get the VIN programming done.
For now, just so I can drive it around the driveway, I slipped the old ECM in and it fired right up.
See Ya :=)
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MROD
User
Nov 3, 2009, 7:11 AM
Post #30 of 33
(3172 views)
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Re: Problem with PO175 - Rich Bank 2
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11-03-2009 Update
Installed replacement ECM (second one) and truck fired right up. Unfortunately, it did nothing to correct the problem. At this point NOTHING surprises me. The PO175 code set in the first drive cycle. I can do no more. In hindsight, I did way too much before taking it in. Oh, well.
Truck is now at the local Ford dealership. I will update you with what they find. 
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 3, 2009, 10:53 AM
Post #31 of 33
(3168 views)
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Re: Problem with PO175 - Rich Bank 2
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See what I meant about those Cardone computers?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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MROD
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Nov 4, 2009, 4:07 PM
Post #32 of 33
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Re: Problem with PO175 - Rich Bank 2
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11-04-2009 Update
Well, I took the van into a large local Ford dealership and after replacing my replacement O2 sensors and putting in my original ECM, they cannot find the problem either. So I told them to pull the O2 sensors and button it back up.
This venture cost me $500 plus.
The next step for Ford would have been 5 hours of labor to dig into the timing chain & tensioner to see if there is a problem there (timing issues apparently). I could not justify any more exploratory surgery + the additional time and parts required if it were the problem. So here I sit. Not sure what I will do next. Maybe it is "engine exchange" time ($2500+). They did not seem to indicate a valve or carbon issue.
How much is a 2001 E150 van worth.
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 4, 2009, 4:35 PM
Post #33 of 33
(3158 views)
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Re: Problem with PO175 - Rich Bank 2
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These things are pretty notorious for bad fuel pressure regulators and leaking injectors. Pull the vacuum line off the regulator after the engine has been running and look for any sign of gas in it. You can check the injectors with a fuel pressure gauge and looking for the rest pressure to drop immediately when shut off. It would require further testing if it did to confirm it's the injectors doing it.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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