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| 1997 to 2003 F-150 4.2L, 4.6L, and 5.4L equipped F-150s. |
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#1
Sat, December 19th, 2009, 01:22 PM
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you should be using your original pcm to begin with , you will also have issues with your transmission otherwise, it makes a not of that in my swap notes, it is easier to reprogram the original pcm then it is to fart around with a replacement one , i am under the same situation with my current swap right now, and with bills tuning expertise it will be purring like a dream, USE ORIGINAL PCM, you will have less head aches, sounds like your mechanic is reaching for straws at the moment, i can pretty much gaurantee if you put in the original pcm, you will have alot less issues in the up and coming stages of this swap and starting and running the vehicle
__________________
 When the going gets tough  slap it in 4wheel high and plow through the junk!
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#2
Sat, December 19th, 2009, 01:25 PM
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and personally i would be a little concerned with a mechanic that is not willing to listen to his customers suggestions? or demands for that fact. Who is paying the bill for all the labour? YOU! who is the vehicle going to after it is done? You! make a stand and tell him if he does not start having a better communication relay with you and your needs and wants out of the project that YOU are paying for as the customer , you need to get that machine away from this guy before you 50 hr job turns into a 3 month job and a invoice that you could buy a new truck with , and a years worth of fuel lol
best of luck , we are all standing behind you with any info you may need and support
__________________
When the going gets tough slap it in 4wheel high and plow through the junk!
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#3
Sat, December 19th, 2009, 02:36 PM
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The original PCM is from a 4.6 truck. My replacement engine is a 5.4. What issues will I have and what will performance be like with using a 4.6 programmed ECM on a 5.4 engine? I know Bill can provide a tune that will correct any issue but until I get it what should I expect?
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#4
Sat, December 19th, 2009, 02:54 PM
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That's exactly how I am driving mine every day right now with the original 4.6 pcm while I have the 5.4 engine swapped and installed, so far all I notice is more power that's for sure, idle is just a little rough due to the 4.6 using size 19 injectors and the 5.4 uses size 24 injectors
It is still very drivable! As well my shift points between 40 km and 50 km is a little chopping and bogs same as 80 to 103 km all of this will be remedied when I get the tuner with the custom pcm flash that bill is making for me, will be here monday, trust me! Use the original 4.6 pcm computer and u will be able to use it as a daily driver while waiting for your gryphon from bill or start the order process now, it will be the same set up exactly as mine
__________________
When the going gets tough slap it in 4wheel high and plow through the junk!
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#5
Sat, December 19th, 2009, 04:00 PM
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Bill, I'll get you those numbers as soon as I find out what ECM he decides to use. Any other advice from you or Dan at this point? I can't tell you guys how grateful I am for your help.
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#6
Sat, December 19th, 2009, 05:59 PM
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well from the sounds of things so far my only advice is don't let your mechanic make these disisions for you anymore, you have to tell him you want to use your original ecm/pcm which ever that was in the truck when you brought it to him, and that you will get any and all tuning needs addressed by bill with yout gryphon, all he should be doing at this point is the wrench work i would suggest as soon as you hear it fire up , drive it QUICKLY out of this guys garage before he starts attempting anything else that may affect the drivability issues before you get the tuner installed , best of luck , as for bill all he needed from me was the pcm/ecm which ever lol number that he told you about earlier from your existing hardware that was in the vehicle as well as a list of any other mods you have done past stock stage with this vehicle , ie, change of muffler diameter pipe, removal of the cats that sort of thing and the year and size of the newly swapped engineor as well the original tranny if you haven't changed it , unless it is in bad shape i would leave your original tranny alone as well, the tunes will fix any shifting point issues and torque conversion.
good luck, feel free to pm directly if you have any other issues, all these replies to posts and pms go directly to my blackberry and i uselly just respond via the cell phone as i was doing today with these ones from my job site benifits of being the boss lol 
__________________
When the going gets tough slap it in 4wheel high and plow through the junk!
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#7
Sun, December 20th, 2009, 10:40 AM
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Dan or Bill
Would the original 4.6 wire harness plug right into the older 5.4 engine and components? Are all the connectors/pins the same on the 2002 4.6 as the 1997 5.4? I made the demand that he use the original harness and pcm and he said that the wire harness is different and wouldn't plug into the engine.
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