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Gotta fixum all... Deep in the red with E99 problems

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Old Aug 4, 2021 | 07:42 PM
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From: State of Delusion.
Originally Posted by Walleye Hunter
I thought that the only wiring difference between E and L 99 would be for the intake air heater, if even that is different.
I really hope you're right.
 
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Old Aug 4, 2021 | 07:56 PM
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Originally Posted by Ezalycasaid
I really hope you're right.
The aih is the only difference on the engine harnes
E99-L99
 
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Old Aug 4, 2021 | 07:59 PM
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So…… you’ve got E99 problems and a L99 (engine) is one of them?
 
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Old Aug 4, 2021 | 08:10 PM
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I don't think the L99 engine has any additional sensors vs the E99. Only thing the E99 PCM can't do is turn on the AIH, or PWM the torque converter.

That being said, an E99 PCM wont be programmed to handle L99 injector sizes or the long lead #8 I think.
 
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Old Aug 4, 2021 | 08:10 PM
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From: State of Delusion.
Originally Posted by FordTruckNoob
So…… you’ve got E99 problems and a L99 (engine) is one of them?
HAHA sounds like it buddy.
 
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Old Aug 4, 2021 | 08:14 PM
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Originally Posted by PriusLover
I don't think the L99 engine has any additional sensors vs the E99. Only thing the E99 PCM can't do is turn on the AIH, or PWM the torque converter.

That being said, an E99 PCM wont be programmed to handle L99 injector sizes or the long lead #8 I think.
What is 'PWM the torque converter'? And I have not heard that the injector size difference was an issue. I thought that certain PCM's were fully interchangeable with the AB injectors and that the AD's could be installed with no changes in PCM or IDM.
 
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Old Aug 4, 2021 | 08:27 PM
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Originally Posted by PriusLover
That being said, an E99 PCM wont be programmed to handle L99 injector sizes or the long lead #8 I think.
Pretty sure I’ve read that the injector size is not an issue. But hopefully an expert will chime in.
 
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Old Aug 4, 2021 | 08:28 PM
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From: State of Delusion.
Originally Posted by PriusLover
I don't think the L99 engine has any additional sensors vs the E99. Only thing the E99 PCM can't do is turn on the AIH, or PWM the torque converter.

That being said, an E99 PCM wont be programmed to handle L99 injector sizes or the long lead #8 I think.
Originally Posted by Walleye Hunter
What is 'PWM the torque converter'? And I have not heard that the injector size difference was an issue. I thought that certain PCM's were fully interchangeable with the AB injectors and that the AD's could be installed with no changes in PCM or IDM.
The other question is, did they change the E99 injectors into the L99 motor?? Because all the injectors are out of the E99 and there's a box of injectors with it. But idk if those injectors are the E99 or the L99. How can I tell?
 
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Old Aug 4, 2021 | 08:28 PM
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Locking the torque converter via PWM vs an on/off signal.

Some googling suggests that AD injectors can run fine on a E99 pcm and idm, I stand corrected.

AB injectors should say "AB" on them.
 
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Old Aug 4, 2021 | 08:36 PM
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Originally Posted by Ezalycasaid
The other question is, did they change the E99 injectors into the L99 motor?? Because all the injectors are out of the E99 and there's a box of injectors with it. But idk if those injectors are the E99 or the L99. How can I tell?
E's have 'AB' on the tops of them and the others have 'AD' on them.
 
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Old Aug 4, 2021 | 08:46 PM
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From: State of Delusion.
So wich injectors do I want in there?
 
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Old Aug 4, 2021 | 08:48 PM
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Originally Posted by Ezalycasaid
So wich injectors do I want in there?
AD's provide a little more fuel but I'd want whichever were in the best condition.
 
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Old Aug 4, 2021 | 08:58 PM
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From: State of Delusion.
Originally Posted by Walleye Hunter
AD's provide a little more fuel but I'd want whichever were in the best condition.
ok thank you ill see whats in the box.
 
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Old Aug 4, 2021 | 08:59 PM
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From: State of Delusion.
So at this point with 70 psi post filter fuel pressure and everything my gauges are showing.... its an HPOP or injector issue right? The only thing not up to spec is the HPOP pressure only getting to 2650.
 
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Old Aug 4, 2021 | 09:18 PM
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Originally Posted by PriusLover
I don't think the L99 engine has any additional sensors vs the E99. Only thing the E99 PCM can't do is turn on the AIH, or PWM the torque converter.

That being said, an E99 PCM wont be programmed to handle L99 injector sizes or the long lead #8 I think.
E99 is a pwm converter just like l99
 
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