Modified PCM?
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Elder User
Joined: Aug 2007
Posts: 571
Likes: 1
Modified PCM?
Today I drove 12 miles and recorded some data. The dealer is under the impression that my truck may have a tuner in it. Again, this is all news to me since I bought the truck this past July.
I am trying to get the No Start after Warm issue resolved on the Factory 100,000/5 year warranty.
Before I go and have the dealer reflash my truck with the latest PCM could someone tell what these numbers look like? As in modded' unmodded?
While running at 65 MPH under Cruise Control, I saw
1800 RPM
6-10 lbs of BOOST
800-900 EGT
How's is this in comparision?
I am trying to get the No Start after Warm issue resolved on the Factory 100,000/5 year warranty.
Before I go and have the dealer reflash my truck with the latest PCM could someone tell what these numbers look like? As in modded' unmodded?
While running at 65 MPH under Cruise Control, I saw
1800 RPM
6-10 lbs of BOOST
800-900 EGT
How's is this in comparision?
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
I think that's a little much boost for the RPM's and speed, maybe a tad high on EGT's too, although your larger tires may have more affect than I know. Why does the dealer think your truck has a tuner in it? What's his basis? The intake and exhaust? He should be able to hook it up and tell you, but he'd have to prove it to me ON PAPER before I'd let him deny anything. You might want to consider another dealer since it sounds like this one is trying to give you a run around, which usually means they don't want to work on it to start with.
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Elder User
Joined: Aug 2007
Posts: 571
Likes: 1
Originally Posted by npccpartsman
I think that's a little much boost for the RPM's and speed, maybe a tad high on EGT's too, although your larger tires may have more affect than I know. Why does the dealer think your truck has a tuner in it? What's his basis? The intake and exhaust? He should be able to hook it up and tell you, but he'd have to prove it to me ON PAPER before I'd let him deny anything. You might want to consider another dealer since it sounds like this one is trying to give you a run around, which usually means they don't want to work on it to start with.
Yea, I agree with you on the run around. Maybe this dealership has done to much warranty work during this period, who knows.
The basis was more or less determined during a test drive by a Ford tech. He was explaining that just a litte diesel off the line produced 20 lbs of boost effortlessly. But, no hard data to prove it.
Even at WOT there is very little black smoke.
But this is what made them look a little deeper I guess and discovered that I did not have a cat on the truck. Again, bought it this way from a dealer. They refuse warranty service. So now I am in the middle of trying to get this dealer I bought it from to return the truck to stock to keep my warranty program valid...
This includes not only installing a cat, but reflashing the PCM to spec..
I still do not think this truck is tuned.
Last edited by FORDSDOWNER; Oct 9, 2007 at 06:36 PM.
Fleet Mechanic
Joined: Nov 2004
Posts: 1,427
Likes: 10
From: Templeton, Massachussetts
Originally Posted by FORDSDOWNER
Today I drove 12 miles and recorded some data. The dealer is under the impression that my truck may have a tuner in it. Again, this is all news to me since I bought the truck this past July.
I am trying to get the No Start after Warm issue resolved on the Factory 100,000/5 year warranty.
Before I go and have the dealer reflash my truck with the latest PCM could someone tell what these numbers look like? As in modded' unmodded?
While running at 65 MPH under Cruise Control, I saw
1800 RPM
6-10 lbs of BOOST
800-900 EGT
How's is this in comparision?
I am trying to get the No Start after Warm issue resolved on the Factory 100,000/5 year warranty.
Before I go and have the dealer reflash my truck with the latest PCM could someone tell what these numbers look like? As in modded' unmodded?
While running at 65 MPH under Cruise Control, I saw
1800 RPM
6-10 lbs of BOOST
800-900 EGT
How's is this in comparision?
Fleet Mechanic
Joined: Nov 2004
Posts: 1,427
Likes: 10
From: Templeton, Massachussetts
Originally Posted by FORDSDOWNER
Yea, I agree with you on the run around. Maybe this dealership has done to much warranty work during this period, who knows.
The basis was more or less determined during a test drive by a Ford tech. He was explaining that just a litte diesel off the line produced 20 lbs of boost effortlessly. But, no hard data to prove it.
Even at WOT there is very little black smoke.
But this is what made them look a little deeper I guess and discovered that I did not have a cat on the truck. Again, bought it this way from a dealer. They refuse warranty service. So now I am in the middle of trying to get this dealer I bought it from to return the truck to stock to keep my warranty program valid...
This includes not only installing a cat, but reflashing the PCM to spec..
I still do not think this truck is tuned.
The basis was more or less determined during a test drive by a Ford tech. He was explaining that just a litte diesel off the line produced 20 lbs of boost effortlessly. But, no hard data to prove it.
Even at WOT there is very little black smoke.
But this is what made them look a little deeper I guess and discovered that I did not have a cat on the truck. Again, bought it this way from a dealer. They refuse warranty service. So now I am in the middle of trying to get this dealer I bought it from to return the truck to stock to keep my warranty program valid...
This includes not only installing a cat, but reflashing the PCM to spec..
I still do not think this truck is tuned.
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Elder User
Joined: Aug 2007
Posts: 571
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Originally Posted by 18vtx00
so fight it if you truck is stock..
No data logger used, just my noting the conditions as I drove down the road.
I cannot believe you bought cat free truck from a dealer-we had one in last week-an 02 w/ a snapped off turbin shaft 6" lift 5" exhaust w/ no cat
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Fleet Mechanic
Joined: Nov 2004
Posts: 1,427
Likes: 10
From: Templeton, Massachussetts
so you have a pre-turbo pyrometer,MGP guages and no flash tuner?? Highly unlikely but possible.. I am sure they will fix it if you speak loud enough, but you may be w/out your truck for being a PITA for a while.
Tuned
Joined: Jul 2006
Posts: 262
Likes: 2
Originally Posted by 18vtx00
so you have a pre-turbo pyrometer,MGP guages and no flash tuner?? Highly unlikely but possible.. I am sure they will fix it if you speak loud enough, but you may be w/out your truck for being a PITA for a while.
Elder User
Joined: Jul 2006
Posts: 577
Likes: 0
From: Stevens County, WA
While running at 65 MPH under Cruise Control, I saw
1800 RPM
6-10 lbs of BOOST
800-900 EGT
How's is this in comparision?[/QUOTE]
My truck runs under 5lbs boost on flat ground at 65 mph. 6-10 lbs sounds tuned to me. I ran a diablosport predator for a short while on the tow tune and didn't even boost that high at 65 mph with no load.
1800 RPM
6-10 lbs of BOOST
800-900 EGT
How's is this in comparision?[/QUOTE]
My truck runs under 5lbs boost on flat ground at 65 mph. 6-10 lbs sounds tuned to me. I ran a diablosport predator for a short while on the tow tune and didn't even boost that high at 65 mph with no load.
Posting Guru
Joined: Jul 2007
Posts: 1,233
Likes: 0
From: Las Vega$
depends on conditions. sometimes when cruising at a steady 70mph i will see almost no boost 1-3 psi, and a cool 600* on the pyro.
then the next day the wind might be blowing different or the temperature is different, and at the same speed i will see 900-1000* and 10-11 psi boost..
it varies a lot a slight grade, even one too slight to see with your eye will load the engine enough to gain 400 degrees and 5-8psi
then the next day the wind might be blowing different or the temperature is different, and at the same speed i will see 900-1000* and 10-11 psi boost..
it varies a lot a slight grade, even one too slight to see with your eye will load the engine enough to gain 400 degrees and 5-8psi
Senior User
Joined: Dec 2004
Posts: 261
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Correct me if I am wrong, but my seat o' pants meter is pretty sensitive and you can tell pretty easily bewteen a tuned and untuned 6.0. I suggest you take a similar stock truck for a ride, then yours and if there is a signifigant difference viola!! I always feel the diffrence bewteen stock and tuned.