Trouble code??

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May 18, 2004 | 10:43 PM

IowaF250

Thread Starter

Freshman User

Joined: Feb 2004

Posts: 39

Likes: 0

From: Midwest

Trouble code??

I have an Edge Programmer for me 1999 7.3 psd. In the diagnostic mode it comes up with these 2 codes. 1) P0541 and 2) P0640. I’m hoping for only injectors, does anyone
here know what they mean? The programmer tells me no code in database search Internet.
Any help would be great.
Thanks

May 18, 2004 | 11:54 PM

gunfrk

Senior User

Joined: Nov 2001

Posts: 316

Likes: 0

PO541 Manifold Intake Air Heater
P0640 Manifold Intake Air Heater

Yea, I know it's seems strange and as soon as I can find a link for the codes I found here on the site I'll send it on.

May 19, 2004 | 12:04 AM

johnsdiesel

Post Fiend

Joined: Aug 2002

Posts: 5,324

Likes: 1

From: Denton,TX

Quote:

Originally Posted by gunfrk

PO541 Manifold Intake Air Heater
P0640 Manifold Intake Air Heater

Yea, I know it's seems strange and as soon as I can find a link for the codes I found here on the site I'll send it on.

Maybe you found it HERE.

May 19, 2004 | 12:10 AM

gunfrk

Senior User

Joined: Nov 2001

Posts: 316

Likes: 0

That wasn't it, although It looks good too. The one I have came from Ford Enthusiasts.

May 19, 2004 | 09:14 PM

cookie88

FTE Leadership Emeritus

Joined: May 2001

Posts: 13,653

Likes: 6

From: Cabot, Arkansas

Quote:

Originally Posted by IowaF250

I'd start by looking for a pinched wiring harness off the IAH. The 541 is an open circuit code and the 640 is a short to ground.....Actually, you might want to pull the heating element first and make sure it hasn't disintergrated.

Dec 28, 2004 | 03:38 AM

knight60626

Senior User

Joined: Jul 2004

Posts: 109

Likes: 0

From: Chicago

Did a search for the P0541 code and found this post.

My question is Where is the IAH located at on the engine??

2000 F450 7.3 PSD

Dec 28, 2004 | 11:45 AM

cookie88

FTE Leadership Emeritus

Joined: May 2001

Posts: 13,653

Likes: 6

From: Cabot, Arkansas

It's right in the middle of the intake "Y" manifold. It's the big (1 1/8" I think) plug in the manifold with a hot wire attached to it.

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Aug 19, 2019 | 11:41 PM

Hammer&Nails

Cross-Country

Joined: Sep 2018

Posts: 89

Likes: 9

From: Montana & Washington stat

Sorry I forgot to mention

Quote:

Originally Posted by cookie88

I've replaced many sensors, had my transmission replaced then replaced again 5 months later, only built, the second time, my way. Then I replaced all 4 brake pads, rotors and calipers. I've had many codes read from my Edge Evolution programmer. I believe my issue is the terminal connectors in the truck, they're lead and once removed, they don't tighten back up, so loose connections result in many internals and such don't function properly. Changing them out now. Will report back shortly

Update: I drive a 2000 F350 crew cab short bed Lariat PSD. I'm running an edge Evolution programmer and when I'm not towing my dump trailer and or my skidsteer, I usually opt for race or extreme setting, 2 or 3

Last edited by Hammer&Nails; Aug 19, 2019 at 11:46 PM. Reason: Update:

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Aug 20, 2019 | 01:06 AM

Rick37

Mountain Pass

Joined: Aug 2019

Posts: 177

Likes: 56

From: Abrams, Wisconsin

Quote:

Originally Posted by cookie88

I second this. Had a similar issue on my grandfathers 99. Turned out to be bad wire. If that's the case easy fix, we opted to get a riffraff Delete plug taped with boost sensor and the code eliminator wire. Good luck!