Help 7.3 missing, no codes, did buzz and contribution tests

[Probuilder]

Ok, Sorry should have given you more info.

Things that I have already tried:
1: changed out the CPS, no change after swapping that out.
2: changed the UVC's on both sides, still no change.
3:Unhooked the IPC- no change/ but has a small amount of oil inside the plug in.
4: Unhooked the MAT- no change
5: unhooked the IAT- no change
6: When I pulled the chip out it runs the same as with the chip in and on stock setting.
I have to turn the chip up to at least Daily Driver to get any power out of the truck.
7: unplugged one side at a time (UVC's) major change in the way the truck runs.
8: The truck has a Gray CPS in it now but I just swapped that out with a new Black one- still no change.

Now for more info on the way the truck runs:
It feels like it is missing on 1 or 2 cylinders only, No major knocking on one side or the other, of the motor. The motor will shake when idling, and all the way up through the rpm range. Loss of power through the whole rpm range, but seems to get a lot better when at 2200 and above, but might just be the power band of the motor.
No the truck has never acted up without the chip, until now.

9: Ok, when I pull the chip out of the truck, no matter what tune it is turned to, does that return the truck back to stock?
10: Or does the PCM still have the tune programmed into it?
11: This truck has never had an update done to it, the PCM, could that be a problem?
12: how do I check the IPR? Can I just unplug it, like the IPC and it go to Default?
I don't have a scanner that will read the truck codes, that is why I took it to Ford Garage. All I have for a scan tool is a Actron CP9180. It will come up with a lot of codes, but can't do the contribution tests or buzz test.
Ford garage came up with no codes present, except the one that tells them it had a tuner in it, so they told me.
13: How much do I have to spend on an AutoEnginuity software to diagnos these problems with the 7.3 motor/ truck. I already have a laptop computer.

Thanks for all the help, Troy You can call me at 319-432-4648

[Probuilder]

No the truck has never acted up without the chip, until now.
- It sounds like isolated cylinder miss. When running the Buzz Test, did you hear any cylinders that sounded different? Meaning... did any injectors sound "dull" or "softer" than others? When I had an injector issue with our truck, I was able to isolate which injector was the issue by doing a buzz test and listening for an injector that didn't sound the same as the rest.

The buzz test sounds equal on all cylinders, but the contribution test showed that the #3 & #8 cylinder showed about 80%???????? Not sure what that means, but that is what the Ford Stealers said. But, I am not sure as I didn't hear it myself, and the Dealer may just be trying to sell me a new truck.


Ford garage came up with no codes present, except the one that tells them it had a tuner in it, so they told me.
- Ford equipment doesn't tell them you have "tuner" on it. That's garbage. As for codes, driveability issues rarely set codes and you'll really need to be able to log PIDS such as ICP, IPR %, PWM, EOT, and maybe a few others in order to come to a conclusion as to which direction to look.
Will the AE Software scanner do these tests?

13: How much do I have to spend on an AutoEnginuity software to diagnos these problems with the 7.3 motor/ truck. I already have a laptop computer.
- Corey can help you with pricing on A/E.
That would be great, I found the Ford kit on Sinister Diesel for $379.95 is that a good deal.

Thanks for all the help, Troy You can call me at 319-432-4648
- I'm tied up at the moment but will be happy to give you a shout this afternoon when I'm back on the road.
A phone call would be greatly appreciated. Even though it sounds like it isn't a problem with your chip or program. Your customer service is above and beyond what I expected!!!!!

[Probuilder]

Groovy Chick,
What service ticket?

[Probuilder]

Bill,
you wanted me to start an online support ticket for this problem, but I can't seem to log in to the support system. I don't know what my user ID and password are.

[88Racing]

Originally Posted by Probuilder

Bill,
you wanted me to start an online support ticket for this problem, but I can't seem to log in to the support system. I don't know what my user ID and password are.

Your info from the forum doesn't carry over you have to register for it.
So click on registration and start a user account.

Closed the other thread.

[Probuilder]

I got the online support account setup, and listed.

Corey, Bill said that you could help with the AE scan tool order. I need to get that ordered so I can get that info to Bill, to figure out what is going wrong with this truck.
If I order the SP03 (Ford Bundle) will that also work on any ford from '96 up including cars?

[Probuilder]

Corey,
When I clicked on the link to purchase an AE SP03 it tells me that the link is broken??????
How do I purchase this?