Another Recall - 26E04 for IAT Sensor Fault Detection

[Lion77]

Based on my quick search this appears to be an issue with the sensing range for IAT sensor faults aka the PCM detection range for IAT sensors that are operating out of their range is the issue.

My big question is, will those of us with the Pro Cal need to wait until FP updates their calibration for this as I imagine they would flash need to flash the PCM with a factory revision to resolve it? These types of recalls I find quite irritating, I had to replace my Mustang GT with Stage 2 powerpack also for an emissions update there the closed the throttle body immediately after the engine was turned off. It wasn't hard, but im not a fan of flashing the ECU unless its for a really good reason.

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[Oscar Indy]

Always return to factory and take the cal completely out before taking to a dealer.

 

[Lion77]

I had the Pro Cal dealer installed. Not going to go flashing it back to stock just to get the factory updated applied, then flash it back to the Pro Cal.

I dont want to give them any excuse to void my warranty. Im just wondering if FP has updated their cal for this recall yet.

 

[Locust13CT]

hmmm Checked this morning on nhtsa and doesn't look like my 11/2024 built Raptor has that recall... yet?

 

[John B]

My 2024 shows an incomplete ota download status for this IAT software update. I also have the Ford tune. I imagine the incomplete status is related to the tune. Guess another question for the Ford service manager

 

[Lion77]

Might end up being like my Mustang GT where there was an update to the calibration which I ended up doing on that particualr car myself, in that case you couldnt flash back to stock since there were significant hardware changes the factor cal wasnt compatible with (i.e., the entire GT350 throttle body, MAF, CAI etc.), but there was as mentioned an emissions update for throttle body closure and I just waited for the updated calibration from FP. Ill probably reach out to them on this one, but im in no rush because I dont give two craps about emissions glitches. Unless it affect vehicle reliability or performance, it it what it is until its available from FP.

 

[John B]

Well, turned off my auto software update last night, and twice today my screen asked my permission to download new software. This is new, at least for me, for an ota update. Maybe if I say it's ok, then feel they can deny responsibility if it screws up the tune, etc

 

[Lion77]

OTA updates won't flash the PCM to my knowlege. They only handle less critical sub-processors like the BCM (body control module) which handles the trailor braking, various chassis, lighting, locks functions etc. There are multiple processors now that handle various vehicle functions that are all networked via CAN bus. This is not new by any means, CAN bus has been in use by the auto industry for decades now, its just that there is more automation and sensors involves in modern cars so obviously the number of processors and sensors has gone up.

But I BELIEVE this particular update is related to the PCM as I have a hard time believing an IAT sensor would be read and monitored by anything other than the main powertrain control module that handles all other critical vehicle functions for basic operation.

 

[ChronciallyChronic]

I'm a little late on this but.....I wouldn't call an OTA a "recall". It's a software update that doesn't require any dealer service bay intervention, it's a software update. It's not as if engine component manufacturing defects have been identified that are causing Ranger engines to grenade at less than 5k miles....and replacement engines at less than 500. It's not as if Ford engineers significantly underspec'd engine oil resulting in "good" engines eating themselves. I'm pretty sure that's GM and Toyota with these kinds of recalls.

 

[Crapblaster]

OTA updates won't flash the PCM to my knowlege. They only handle less critical sub-processors like the BCM (body control module) which handles the trailor braking, various chassis, lighting, locks functions etc. There are multiple processors now that handle various vehicle functions that are all networked via CAN bus. This is not new by any means, CAN bus has been in use by the auto industry for decades now, its just that there is more automation and sensors involves in modern cars so obviously the number of processors and sensors has gone up.

But I BELIEVE this particular update is related to the PCM as I have a hard time believing an IAT sensor would be read and monitored by anything other than the main powertrain control module that handles all other critical vehicle functions for basic operation.

I had a PCM update a couple of weeks ago that was OTA. I flashed back to stock, updated and then loaded the tune back on. Of course the tune would not include the latest update until the procal, ZFG or Goosetuned uses the updated base tune.

 

[boraxman]

Darn - Just noticed I got this too. In the same situation having the FP tune, will wait it out like the rest of the recalls.

Looks like Ford wants me to schedule with dealer.

 

[John B]

Talked to both my service mgr and sr master tech who's done all my work (incl 800 hp shelby mustang) and they suggest not installing it for now unless you don't have a tune. In fact, my mechanic (also an actual friend) said to turn off all ota updates of any kind, and install on a case by case basis based on whether the update actually is needed or results in benefit. I'm going with his thoughts on this one.

 

[John B]

I'm a little late on this but.....I wouldn't call an OTA a "recall". It's a software update that doesn't require any dealer service bay intervention, it's a software update. It's not as if engine component manufacturing defects have been identified that are causing Ranger engines to grenade at less than 5k miles....and replacement engines at less than 500. It's not as if Ford engineers significantly underspec'd engine oil resulting in "good" engines eating themselves. I'm pretty sure that's GM and Toyota with these kinds of recalls.

I believe that this update revises what the engine recognizes as a normal IAT range, which will control spark advance and fuel mix. So not updating this info could potentially result in engine damage if you push the engine super hard and your IAT2s go super high in a hot climate. Not gonna be an issue for me, so I see no need for this update. Another work around is to just install a more efficient intercooler, which is never a bad idea anyway

 

[Lion77]

Not according to what I read. It is an IAT sensor range where it detects a fault so that it meets emissions standards, meaning you can run with a sensor thats out of range and be violating emissions standards but it wont throw a code. The knock sensors will keep timing and fueling where it needs to be, even with a faulty IAT sensor, its not going to suddenly allow more knock just because sensor is giving it bad info, it will scale back timing as knock is detected. This is listed as an emissions issue, not a reliability issue. Essentially they are permitting too wide of a range to keep the EPA happy regardless of how the vehicle runs.

 

[John B]

Thanks for the clarification. Definitely no need to install this update.

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