How does it idle? Also you can unplug the ICP sensor (it is located at the front of the passenger side valve cover, sticking straight out of the valve cover) at idle and see if how it runs changes

 

It is the black cylinder that has two metal lines running to it and the ICP sensor connection comes out towards the exterior of the truck? Or is that something for the AC? Idles rough sometimes and then other times perfect.

 

No, thats for the AC. The ICP is just a little sensor, that you can see in this picture. you can just unplug the connector and see what happens.



Also, do you still have your factory EGR system in place?

 

Everything is stock a far as I know. Haven't had the time/money to do a lot of extras. Thanks for the pic. Going to try it now. I will let you know after its done.

 

Not trying to bust your chops or anything but the only filters you should be running are motorcraft/racor oil and fuel filters and motorcraft air filters, the reason it is ok to run the racor filters is because they make the filters for motorcraft. Here is a youtube video that explains some of the differences,

 

OK mine looks like this and doesn't seem to look like yours acf6. Can't seem to find it any ideas where else it would be?

 

Oh wow, i somehow mixed up two threads with similar problems, thought you had a 2005. On our 2003s, the ICP sensor is behind the turbo. This is a little more challenging, and i wouldnt go crawling back there just to unplug it

 

OK well then I guess I will just wait until AutoZone calls with the scanner and then we will go from there. Thanks again.

 

OK just went and picked up the ScanGauge II. I guess I can wait until tomorrow for your help but I am going to plug it in and at least do the set up part in the quick guide.

 

This should help you

FICM Main Power (Volts) (Should be 47-48)
TXD: 07E02209D0
RXF: 0462450906D0
RXD: 3010
MTH: 0064010000000
NAM: FMP

VGT Duty Cycle (%)
TXD: 07E022096D
RXF: 04620509066D
RXD: 3010
MTH: 00647FFF0000
NAM: VGT

Engine Oil Temp.
07E0221310
046245130610
3010
00090005F05F
EOT

Inj. Control Press.
07E0221446
046205140646
3010
003900640000
ICP

IPR Duty Cycle
07E0221434
046285140634
3008
0DCA03E8000A
IPR %

that should get you started. takes a little bit to get them programmed.

Let us know what the FICM value is, and what the IPR and ICP values are at cold idle and hot idle

 

Thanks I will get started on them tonight.

 

Ok some results for ya. I started her up and it gave me cold idle. Then I drove it around a bit and warmed the engine up and got the hot idle. Let me know what you think and hopefully it isn't horrible news.

Cold idle
FMP 48.0
VGT 83
EOT 96
ICP 750
IPR 26.7

Hot Idle
FICM 48
VGT 54
EOT 166
ICP 642
IPR 25.0

Any thoughts? Thanks again.

 

Values look pretty good. Did the scangauge give you any codes? Sometimes they aren't the best at reading codes on these...do you have a buddy with an SCT tuner? Or some type of computer car scanning program

 

It gave me no codes... And I don't know anyone with an SCT tuner. Should I have bought one of those instead of this thing? They had one for sale at AutoZone for nearly 300 or something....

 

No, this is better for monitoring. One that easily does both is like $400+... I prefer the scangauge. Autozone can probably scan it for you

Might have asked this already but do you still have the egr system in place?