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Help with mpi conversion 

 

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 Post subject: Help with mpi conversion
Posted: Mon Jul 09, 2007 8:09 pm 
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im in the process of converting to mpi. my car is a 88 ea s ive got a 88 mpi loom.fuel pump and inlet. today i went to the wreckers and got a throttle body . and i nocited the black box on the side of the throttle body witch i assum is the tps. but i dont have a plug on my mpi loom for that plug. have i got the wrong throttle body ?

any help would be great
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Posted: Tue Jul 10, 2007 10:13 am 
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as far as i know there were no 88 mpfi engines,,get one from a 90 on model.

 

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Posted: Tue Jul 10, 2007 3:41 pm 
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Dont listen to this guy ^^^^ Ive got a mpfi 88 model.

3 speed and 4 speed autos have different TPS's.
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Posted: Wed Jul 11, 2007 12:53 am 
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well this loom i have came from a 88 mdl mpi ea and my car is a manual if that helps
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Posted: Wed Jul 11, 2007 8:43 am 
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Dansedgli wrote:
Dont listen to this guy ^^^^ Ive got a mpfi 88 model.

3 speed and 4 speed autos have different TPS's.


no need to be a smart a**,,all you need is to get the right loom or try changeing the wires around to suite your needs....

 

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Posted: Thu Jul 12, 2007 6:11 pm 
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i got the loom from a mpi ea but i dont understand why there is no plug on my loom for the throttle body
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Posted: Sat Jul 14, 2007 4:44 pm 
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any helps guys
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Posted: Sat Jul 14, 2007 5:59 pm 
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what do you mean by throttle body,,do you mean tps,,idle control ???

 

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Posted: Sat Jul 14, 2007 6:26 pm 
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Have a look through this post dig, see if anything there can help you:

http://www.fordmods.com/forums/viewtopi ... light=mpfi

 

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Posted: Thu Jul 26, 2007 11:29 pm 
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Mpi's with 4 speeds have 2 throttle sensors, the extra one for the gearbox instead of the kickdown. That is the difference so all the wires should be there with afew left over.

 

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Posted: Sat Jul 28, 2007 9:22 am 
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I have done this conversion, I used the CPFI loom and joined one wire, I forget what color it was but it was the spark control wire had to be piggy-backed to another wire and it was fine. It was a lot simpler than I thought it would be.

 

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Posted: Sat Jul 28, 2007 10:28 am 
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Smokey...Retired! wrote:
Mpi's with 4 speeds have 2 throttle sensors, the extra one for the gearbox instead of the kickdown. That is the difference so all the wires should be there with afew left over.


this is the answer you are looking for. the 4sp autos had 2 sensors, the manuals only one.

 

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Posted: Sat Jul 28, 2007 10:54 am 
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yeah it becomes fun when you have the 4 speed auto and you to go BBM... lol as you have 2 sensors you need but only 1 sensor...

CFI to MPFI is fun.. my mate and i done it on his old EA (which then became mine) and we ended up stripping both looms right back and rejoining all the wires from the CPU plug upwards. as the 2 looms didnt connect

 

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Posted: Sat Jul 28, 2007 4:11 pm 
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hey guys i found the problem the tsp on the throttle body was off a diffent falcon so i got one of the same year as my car and bingo problem solved . i havnt had to cut or modify any wires i went of the rule whatever year my car was cpi i get the same gear of the same year mine is. ive just need some injectors and im done. then ill start to put my turbo bits on hehe
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Posted: Sun Jul 29, 2007 7:10 pm 
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Great to hear Sik_Cordz :) well im on my 4th conversion now to Mpi, but i hav a new conversion to do now...3 sp auto in a Ea to 4 sp electronic auto out of a eb series 2...see how that goes....

 

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1973 HQ 253 Premier sedan, 1991 EA 3.9lt 30 anniversary sedan
1978 XC 250 Falcon 500 sedan, 1988 EA 3.9lt Fairmont sedan
1994 EF 4lt Gli Wagon 1995 EF 4lt XR6 sedan (now gas~!)
1996 Ef Gli sedan, 1988 GPX 250r, 1999 ZX9R Ninja

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