Fried PCM?

[5ohcoyote]

well checked the car again and the coil codes went away. But just waiting for the car to be towed to a friends shop and hopefully done by the end of next week.

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[sigintel]

Sweet!

 

[ugstang17]

FWIW - I am referencing the 2011 schems on the ECU. The cam sensors have a signal source provided by the PCM that go out to the sensor and then return. Each is proprietary and isolated from the other four position sensors. So if the S550 platform is similar electrically on this system then it could be possible to damage the ECU. It would depend on which wire was pinched. Note I said POSSIBLE and not PROBABLE. Big difference. If the wire pinched is on one of the VCT control valves it is doubtful anything was damaged on the ECU. In this case, 12vdc is sourced to the solenoid and the on/off state is controlled by sinking the solenoid to "logic low" via the ECU. If the hot side wire was pinched you would have popped a fuse. Again this is 2011 schem related but if the case, the purge cannister and many other devices are on the same fuse and you would have multiple system failures due to lack of power source.

I am aware this is late to the game, but thought I would throw it out there for you as a means of reducing any anxiety you may have on ECU damage. Do as mentioned and inspect the wiring harness closely. Sorry I don't have schems for an S550. I was going to get them but have decided I am selling this car over the winter.

Personally I believe that the issue is the timing as others have mentioned. It only makes logical troubleshooting sense in this scenario. Problems that crop up after a modification/retrofit/repair are related to the work and not a sudden random failure in 99.9% of all troubleshooting diagnostics cases regardless of what is being worked on.

 

[5ohcoyote]

FWIW - I am referencing the 2011 schems on the ECU. The cam sensors have a signal source provided by the PCM that go out to the sensor and then return. Each is proprietary and isolated from the other four position sensors. So if the S550 platform is similar electrically on this system then it could be possible to damage the ECU. It would depend on which wire was pinched. Note I said POSSIBLE and not PROBABLE. Big difference. If the wire pinched is on one of the VCT control valves it is doubtful anything was damaged on the ECU. In this case, 12vdc is sourced to the solenoid and the on/off state is controlled by sinking the solenoid to "logic low" via the ECU. If the hot side wire was pinched you would have popped a fuse. Again this is 2011 schem related but if the case, the purge cannister and many other devices are on the same fuse and you would have multiple system failures due to lack of power source.

I am aware this is late to the game, but thought I would throw it out there for you as a means of reducing any anxiety you may have on ECU damage. Do as mentioned and inspect the wiring harness closely. Sorry I don't have schems for an S550. I was going to get them but have decided I am selling this car over the winter.

Personally I believe that the issue is the timing as others have mentioned. It only makes logical troubleshooting sense in this scenario. Problems that crop up after a modification/retrofit/repair are related to the work and not a sudden random failure in 99.9% of all troubleshooting diagnostics cases regardless of what is being worked on.

Yeah I’m starting to lean towards timing as well, and so is my buddy. Just the shop that supposedly corrected the timing said it was 100% back in time, I mean if not hopefully I get some of my money back if not all of it. I checked fuses just in case and they were all fine.

 

[ugstang17]

Yeah I’m starting to lean towards timing as well, and so is my buddy. Just the shop that supposedly corrected the timing said it was 100% back in time, I mean if not hopefully I get some of my money back if not all of it. I checked fuses just in case and they were all fine.

Give them the chance to make it right. I wouldn't give them a dime more IMHO unless they can prove something non related created the problem and their work is fine (doubt that highly). But its hopefully an honest mistake. Setting the mechanical timing on a modular engine isn't like setting mechanical timing on a push rod engine. A monkey could do that and get it right. Don't let them roll you over but at the same time give them a chance to make good. Hopefully they are upstanding people.

 

[sigintel]

Thats a service shop and not a major repair shop. They Dont work on modern Fords other than basic service.
There is a Ford dealer that has had more than one STOCK vehicle towed in exactly from that shop because they were NOT capable of fixing it.
They are an oil change place run by some old school gearheads, not a modern Ford shop.

 

[5ohcoyote]

Thats a service shop and not a major repair shop. They Dont work on modern Fords other than basic service.
There is a Ford dealer that has had more than one STOCK vehicle towed in exactly from that shop because they were NOT capable of fixing it.
They are an oil change place run by some old school gearheads, not a modern Ford shop.

My problem was being impatient honestly. Although they said they could do it... The guy I’m taking it to now said two weeks until they would’ve looked at it and these guys said it would be done in a week and a half. I should’ve waited but I wanted my car fixed to enjoy it

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