superchips 1715
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Joined: Dec 2003
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From: Terre Haute IN
superchips 1715
Alright I will be honest I don't have a clue about these new electronic engines. So heres my question I bought a 1715 from Troyer Performance and got it in today. I went to install it and it says disable the fuel system..... Now if I just take off the fuse for the fuel pump will I be ok? I can't find anything in my owners manual for anything to do iwth fuel other than the pump and I want to make sure I am doin this right. So if there is another fuse I have to remove can someone tell me what it is.
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From: deep in the redwoods
Hey Garzo,
Smart move posting a good question. I don't know what happens if you do it wrong..but it sounds pretty bad. I have a 1997 so can't help you out but sit tight for a bit and you'll get an answer soon. The only reason I wrote was to say stay smart and patient cuz when it's done, you're going to be very very happy.
Smart move posting a good question. I don't know what happens if you do it wrong..but it sounds pretty bad. I have a 1997 so can't help you out but sit tight for a bit and you'll get an answer soon. The only reason I wrote was to say stay smart and patient cuz when it's done, you're going to be very very happy.
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Joined: Oct 2000
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From: southington ct usa
Yes pull the fuel pump fuse underhood, either number 9 or 10, check your owners manual do not trust the book that came with superchips. At one time it had them mis-labeled, I don't know if it ever got fixed. I'm sure it did, however the smart thing to do is still check your owners manual.
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From: Virginia
Hi Garzo,
WAIT - hang on there just s second before you potentially make a mistake. I had to go back and edit my own post after I saw that you have a 2003 F-150..............
"Disabling the fuel system" is what you need to do, exactly as instructed in the Micro Tuner's installation manual.
In the 1997-2002 F-150's that is accomplished by simply removing the fuel pump fuse - which is located in the power distribution box (fuse box, same thing) under the hood, on the fenderwell, on the driver's side.
But in some of the 2003's, that is NOT the correct thing to do at all, as the Micro Tuner's manual points out!
In the 2003 F-150's with the Ptech lookalike PCM (which looks like and connects like a Ptech but uses an EEC-V program file), the PCM I'm talking about can be identified by the picture you see in the Micro Tuner's manual - it will have not just one wiring harness connector with a 10mm bolt head in the middle of that connector like the EEC-V PCM's - the Ptech-style PCM will have THREE (3) separate wiring harness connectors, each with a 10mm bolt head in the center of the connector. And on THOSE, you have to actually disconnect the correct wiring harness connection **to the PCM** to disable the fuel system, not just remove a fuse.
This is *critically* important..................making a mistake here could potentially, in an absolute worst-case scenario, cost you an engine!
Any time you need Technical Support on any product purchased from us here at Troyer Performance, like in this case, please do as the Micro Tuner's manual mentions in numerous places, which is to call either the manufacturer or call us if you need help. That is the ONLY way to get information you can absolutely count on as being correct.
Don't get me wrong, many 2003 F-150's can have their fuel system properly disabled by removing the fuel pump fuse, and Jeff & jstang are only trying to help - they're both great guys & contributing members here (and I hope neither will be offended!) but NOT ALL of the 2003's can have their fuel system disabled in that manner. Just as an aside, all 2003 Expeditions have this "Ptech-style" PCM I'm talking about, while only some (usually the later builds, but not always) of the 2003 F-150's have it.
The reason you have to disable the fuel system is because in these late-model F-150's, any time the PCM has power the fuel pump *also* gets powered up - and 6-8 minutes worth of fuel puddled in the engine's cylinders is enough to potentially cause a problem upon starting the engine. With gallons of fuel in the cylinders, the crankcase, etc., you could even potentially hydro-lock the motor and bend a connecting rod, requiring engine replacement that might not be covered under warranty (that wouldn't be fair to Ford).
Even Ford dealership service techs have to do the same thing whenever they flash these PCM's, disable the fuel system. Very simple, and that eliminates even the potential for such a long-shot kind of problem.
One other point - as others mentioned, if you have the traditional EEC-V PCM with the single wiring harness connector on the front (and that connector is on the *front* of the PCM - and the front of the PCM is under the hood, on the passenger side, right behind the battery), make sure you check your vehicle's owner's manual for the correct location of the fuel pump fuse - just as Jeff & jstang kindly pointed out. Sometimes the fuse layout diagram that is embossed onto the underside of the fuse box's lid there under the hood can be incorrect - the owner's manual will always be right.
Last - Jeff & jstang, please do not be offended by me making this post, since he owns a 2003 F-150 he needs to identify *which* PCM he has, as it's the Ptech-style unit that a number of the 2003 F-150's (and all 203 Expeditions) have, the correct wiring harness connection must be disconnected from the PCM to actually fully disable the fuel delivery system - but thanks very much to both of you for helping out, as you always do!
Have fun,
WAIT - hang on there just s second before you potentially make a mistake. I had to go back and edit my own post after I saw that you have a 2003 F-150..............
"Disabling the fuel system" is what you need to do, exactly as instructed in the Micro Tuner's installation manual.
In the 1997-2002 F-150's that is accomplished by simply removing the fuel pump fuse - which is located in the power distribution box (fuse box, same thing) under the hood, on the fenderwell, on the driver's side.
But in some of the 2003's, that is NOT the correct thing to do at all, as the Micro Tuner's manual points out!
In the 2003 F-150's with the Ptech lookalike PCM (which looks like and connects like a Ptech but uses an EEC-V program file), the PCM I'm talking about can be identified by the picture you see in the Micro Tuner's manual - it will have not just one wiring harness connector with a 10mm bolt head in the middle of that connector like the EEC-V PCM's - the Ptech-style PCM will have THREE (3) separate wiring harness connectors, each with a 10mm bolt head in the center of the connector. And on THOSE, you have to actually disconnect the correct wiring harness connection **to the PCM** to disable the fuel system, not just remove a fuse.
This is *critically* important..................making a mistake here could potentially, in an absolute worst-case scenario, cost you an engine!
Any time you need Technical Support on any product purchased from us here at Troyer Performance, like in this case, please do as the Micro Tuner's manual mentions in numerous places, which is to call either the manufacturer or call us if you need help. That is the ONLY way to get information you can absolutely count on as being correct.
Don't get me wrong, many 2003 F-150's can have their fuel system properly disabled by removing the fuel pump fuse, and Jeff & jstang are only trying to help - they're both great guys & contributing members here (and I hope neither will be offended!) but NOT ALL of the 2003's can have their fuel system disabled in that manner. Just as an aside, all 2003 Expeditions have this "Ptech-style" PCM I'm talking about, while only some (usually the later builds, but not always) of the 2003 F-150's have it.
The reason you have to disable the fuel system is because in these late-model F-150's, any time the PCM has power the fuel pump *also* gets powered up - and 6-8 minutes worth of fuel puddled in the engine's cylinders is enough to potentially cause a problem upon starting the engine. With gallons of fuel in the cylinders, the crankcase, etc., you could even potentially hydro-lock the motor and bend a connecting rod, requiring engine replacement that might not be covered under warranty (that wouldn't be fair to Ford).
Even Ford dealership service techs have to do the same thing whenever they flash these PCM's, disable the fuel system. Very simple, and that eliminates even the potential for such a long-shot kind of problem.
One other point - as others mentioned, if you have the traditional EEC-V PCM with the single wiring harness connector on the front (and that connector is on the *front* of the PCM - and the front of the PCM is under the hood, on the passenger side, right behind the battery), make sure you check your vehicle's owner's manual for the correct location of the fuel pump fuse - just as Jeff & jstang kindly pointed out. Sometimes the fuse layout diagram that is embossed onto the underside of the fuse box's lid there under the hood can be incorrect - the owner's manual will always be right.
Last - Jeff & jstang, please do not be offended by me making this post, since he owns a 2003 F-150 he needs to identify *which* PCM he has, as it's the Ptech-style unit that a number of the 2003 F-150's (and all 203 Expeditions) have, the correct wiring harness connection must be disconnected from the PCM to actually fully disable the fuel delivery system - but thanks very much to both of you for helping out, as you always do!
Have fun,
Last edited by Superchips_Distributor; Mar 17, 2004 at 01:18 AM.