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PostPosted: Sat Jun 29, 2013 6:07 pm 
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Joined: Mon Jul 13, 2009 3:38 pm
Posts: 108
Location: Pell Lake, Wi. 53128
Is the 89-turbo MAS wiring the same as the 1g MAS?
I have it hooked up per the FAQ:
PINS
2g to 1g
1 ---- 4
2 ---- 7
3 ---- 2
4 ---- 3
5 ---- 6
6 ---- 8
7 ---- 1
I started it and I am logging:
Air flow 0Hz
Barometer 0.0bar
Air Temp -74/ now correct at +72*

I'm using an 89T harness with 1g ECU with pins 6 & 14 switched.
I can't be sure about the 2g MAS being good but I wanted to verify the pins are properly wired

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89 Colt GT 1.5 auto- conversion 4g63t 5-spd, L2A...
89 Colt GT 1.6 5spd- donor
92 VR4 32/1000 SOLD


Last edited by joemoto on Sun Jul 07, 2013 8:10 am, edited 2 times in total.

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PostPosted: Sat Jun 29, 2013 6:17 pm 
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Joined: Sat May 14, 2005 11:15 pm
Posts: 7515
Location: Stantonsburg, NC
The 90 4G63T engine is a direct drop in so I'm sure the wiring is the same.

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93 Mitsubishi Expo LRV 1.8/manual
95 Eagle Summit DL Coupe 1.5/manual
01 Mitsubishi Mirage ES Sedan 1.8/manual


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PostPosted: Sat Jun 29, 2013 6:59 pm 
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Joined: Mon Jul 13, 2009 3:38 pm
Posts: 108
Location: Pell Lake, Wi. 53128
I thought the 89 turbo and 90 turbo wiring was the same and what you say would confirm that. I need to verify whether or not the typical 1g to 2g MAS adapters circa 91-94 are pinned differently than the 89-90 MAS?

While looking at the wiring diagram for the 89T and comparing it to a 91T per my Galant manual I see that 12volts from the MPI is supplied to the 89T at pin 3 and the 91T is supplied at pin 2. I wanted to see if anyone has noticed this and what was done.
thanks-

_________________
89 Colt GT 1.5 auto- conversion 4g63t 5-spd, L2A...
89 Colt GT 1.6 5spd- donor
92 VR4 32/1000 SOLD


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PostPosted: Sat Jul 06, 2013 5:43 pm 
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Joined: Mon Jul 13, 2009 3:38 pm
Posts: 108
Location: Pell Lake, Wi. 53128
Well I found the problem with my Airflow and Barometric measurements. It was my fault; when I rewired the connector I reversed the top row consisting of 1 through 4.
I have idle surge with the idle switch connected, but at least the values are there.

_________________
89 Colt GT 1.5 auto- conversion 4g63t 5-spd, L2A...
89 Colt GT 1.6 5spd- donor
92 VR4 32/1000 SOLD


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PostPosted: Sun Jul 07, 2013 1:53 pm 
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Spends Too Much Time Under The Hood
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Joined: Fri Jul 25, 2003 4:57 pm
Posts: 212
Location: Albany, OR
I was pleased to see this post. I have been wondering if I didn't do something wrong with my rewire. I planned to check it out today and now I most certainly will. Glad it worked out in your favor.

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2012 Explorer Limited
1989 Colt GT clone 4G63t auto
1992 Talon TSi
1990 Talon TSi
1995 Crown Vic
1993 Ford F-250 BBF
1987 Chevy Sprint Turbo


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