New Recall for ECU Safety Issues

[rhexis]

Found this buried in the doc:

"In some unique driving scenarios or vehicle conditions , including clutch slip
causing incorrect ratio, extended reverse driving due to miscalibration of odd/
even shift gates, and customer modifications [emphasis mine], a mismatch between the gear position sensor signal and the estimated gear calculation might be detected by the PCM resulting in a degraded signal state."

I suspect, but can't prove, the entire PCM software will be overwritten. Since manufacturers will often use 'modifications' to void warranties I doubt Ford will be sympathetic to your tune getting wiped; is a 're-tune' possible?

Side note: WTH is 'extended reverse driving?'

i got the fault on mine a few days before the recall came out. was reversing out of my driveway which is pretty long and sloped. i usually just feather the clutch but this time i let the clutch out and was reversing at a decent rate and boom, camera went out got the fault and my rev matching was gone.

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[LOL WUT]

Found this buried in the doc:

"In some unique driving scenarios or vehicle conditions , including clutch slip
causing incorrect ratio, extended reverse driving due to miscalibration of odd/
even shift gates, and customer modifications [emphasis mine], a mismatch between the gear position sensor signal and the estimated gear calculation might be detected by the PCM resulting in a degraded signal state."

I suspect, but can't prove, the entire PCM software will be overwritten. Since manufacturers will often use 'modifications' to void warranties I doubt Ford will be sympathetic to your tune getting wiped; is a 're-tune' possible?

Side note: WTH is 'extended reverse driving?'

If bringing in for the recall I’d suggest loading the stock tune prior to bringing it in. that’s what I’ll be doing if impacted by this.

 

[StangTime]

I was at the dealer for an alignment and a message popped up on the service advisors screen for the PCM reprogram. I told them not to do it as I have the Ford Performance tune installed. I think I may contact FP about this update. Maybe they will have to provide a new tune to fix the issue. If not, no biggie. I can deal with the glitch if it ever occurs.

 

[ice445]

I was at the dealer for an alignment and a message popped up on the service advisors screen for the PCM reprogram. I told them not to do it as I have the Ford Performance tune installed. I think I may contact FP about this update. Maybe they will have to provide a new tune to fix the issue. If not, no biggie. I can deal with the glitch if it ever occurs.

Does that mean dealers are actually ready to do this now?

 

[Bullitt0819]

Does that mean dealers are actually ready to do this now?

Letters to owners are supposed to be sent starting June 13, so they better be.

 

[bryyce62]

I was at the dealer for an alignment and a message popped up on the service advisors screen for the PCM reprogram. I told them not to do it as I have the Ford Performance tune installed. I think I may contact FP about this update. Maybe they will have to provide a new tune to fix the issue. If not, no biggie. I can deal with the glitch if it ever occurs.

Todd,
I'd be interested to know what you find out.

I have not had this problem, but have a late 2020 with the manual and the FP tune.

 

[StangTime]

Todd,
I'd be interested to know what you find out.

I have not had this problem, but have a late 2020 with the manual and the FP tune.

Let me get on that tomorrow. I will reach out to Ford Performance and reference the decall/PCM reprogramming.

 

[Biggus Dickus]

If bringing in for the recall I’d suggest loading the stock tune prior to bringing it in. that’s what I’ll be doing if impacted by this.

With an E85 tune married to an SCT4, can one simply reflash to stock, get the recall done, and reinstall the tune?

Just askin' for a friend.

 

[LOL WUT]

With an E85 tune married to an SCT4, can one simply reflash to stock, get the recall done, and reinstall the tune?

Just askin' for a friend.

That may be tricky. I’m currently on a Lund E85R tune so I’d be going to my flex tune until I could get to 100% 93 octane, then switching to my OEM tune. But honesty if this issue happened to me I’d probably ignore it unless it was long lasting persistent issue.

 

[ice445]

With an E85 tune married to an SCT4, can one simply reflash to stock, get the recall done, and reinstall the tune?

Just askin' for a friend.

Doesn't reflashing the tune completely negate the entire point of going in for the recall in the first place? I mean other than for resale/compliance reasons, I would assume that unless you get a new tune file based on that latest PCM program revision that you're just getting the same problem back?

 

[StangTime]

Doesn't reflashing the tune completely negate the entire point of going in for the recall in the first place? I mean other than for resale/compliance reasons, I would assume that unless you get a new tune file based on that latest PCM program revision that you're just getting the same problem back?

That's my thought as well. I'm thinking any tune you install after having the PCM fix is going to overwrite it. Unless... tunes only write to certain sections within the flash memory in the PCM.

 

[Rapid Red]

One time my AC in my truck wouldn't kick on. 40K miles after that and no issues.
Software has error states built into it. Its possible that some weird combination of things creates some edgecase where sure this might happen but turning it off and on again fixes it.

Computers can get scrambled sometimes and just need a reboot "but turning it off and on again fixes it"

Intermittent is not unusual with solid-state devices, in spite of the big tech pushes.

 

[StangTime]

Todd,
I'd be interested to know what you find out.

I have not had this problem, but have a late 2020 with the manual and the FP tune.

I just got off the phone with a Ford Performance tech.
He said in order to apply the PCM recall fix it must be done as follows:

1. Inform the service advisor of the FP tune when you take the car in and bring your Procal4 device and ODB cable. You will need to work with the tech to ensure he knows this and that the vehicle CANNOT be started until the FP tune is re-flashed.
2. Drive the vehicle to the service bay and shut off the engine.
3. Re-flash the PCM back to stock using the Procal4 device. DO NOT start engine.
4. Dealer may then apply the PCM recall fix. DO NOT start engine.
5. Re-flash the FP tune back to the PCM.
6. Start engine and procedure should be complete.

I tell you, I don't think it's worth the hassle of going through all that and the potential for something to go wrong. Now, if you are experiencing issues like the recall is describing and you can't live with it, I would say go for it.

 

[bryyce62]

Thanks much for the info, Todd.
I tend to agree with you. Unless I have an issue, I'm going to sit tight for the time being.

Thx again.

gw

 

[bryyce62]

Unless... tunes only write to certain sections within the flash memory in the PCM.

There's probably some truth to that statement.

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