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302 to 730 ecu

Old 01-02-2019, 04:46 PM
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302 to 730 ecu

so I have been looking around. And just about ready to start swapping parts. What I can't find is a direct 302 to 730 wiring. Maybe I have not looked in the right spot. What I have found here is some info for 302 to 165, 165 to 730. This leaves room for error and making a mistake. Like I said, maybe I have not been where I need to be for this info, but I don't want the chance of failure from swapping to one then the other. It will be hard to track down what I did wrong if I do it like that. Im boosted and need to get away from the maf, I have a three bar on the way and will start on the program tonight. I post in the sixer side, as I am 2.8 at this time. I figured some one here knows.
I would appreciate any help, or steering in the right direction. Thanks!
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Old 01-02-2019, 06:20 PM
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Re: 302 to 730 ecu

I think you will have to make your own pinout conversion.
post #9 is from a 302 ecm
https://www.thirdgen.org/forums/dfi-...730-749-a.html
here is the schematics for 90-92 3.1l
http://www.austinthirdgen.org/?pid=19
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Old 01-03-2019, 04:50 PM
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Re: 302 to 730 ecu

Thank you sir. I do appreciate it.
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Old 01-11-2019, 03:06 PM
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Re: 302 to 730 ecu


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Old 01-11-2019, 03:17 PM
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Re: 302 to 730 ecu


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Old 01-11-2019, 03:59 PM
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Re: 302 to 730 ecu

I'll be making some changes to this I think. I also have notes that I need to check. I'll add colors too. I have to look at a few more things and double check. Feel free to look over my work so far. And if anyone sees any adjustments that need to be made, feel free to say i f'ed it up. I plan to make an adapter harness this weekend. Should take and hour or two. Hopefully running this week.

7730 c1 blk - '302 connector pinout

a5-c14 5v to tps
a6-a6 ingition
a8-a8 aldl
a11-a1 fuel pump relay
a12- ground same as system ground?

b1-b1 batery
b5-d13 tps mat gnd
b6-d13 map cts gnd
b11-a10 vss output 4000 ppm

c2 blk '302 connector pin

d1-d1 system gnd
d6- ?ground? same as system ground?
d7- ?ground? same as system ground?
d8-b5? is this right? should be dist ref pulse high
d9-b9? is this right? should be dist ref pulse low
d12-c9 ac pressure switch
d13-b9 psps power steering? one list has this the other dont. atg.org has this listed, is this right?
d14-c8 top gear fourth clutch imput
D16-b10 park neutral imput

c1-c1? atg.org has listed as cruse module but c1 on 302 connector pin says not used
c7-d5 est bypass
c8-b4 est control
c9-a2 a/c on input
c11-d14 d16 fuel inj control
c12-c15 d15 fuel inj control
c16-c16 battery

c3 blk '302 connector pin

f1-b8 b8 upshift indicator manual
f2-? air select i think this should be c2 but not sure
f4-? air diverter valve
f6-a7 tcc auto
f7-a3 canister purge solenoid
f9- knock
f10- vats
f13-c13 c12 tps imput
f15-b6? map imput (i may just run map wires from the ecm)
f16-a11 mat

e3-c5 iac A high
e4-c6 iac A low
e5-c4 iac B high
e6-c3 iac B low
e7-a5 ses (check engine)
e8-d2 coolant fan
e9-a4 egr control
e12-a9 diagnostic test control
e13-b2? fuel pump control
e14-d7 o2 sensor imput
e15-d6 o2 sensor gnd ? just a straight ground from the ecm?
e16-c10 cts imput
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Old 01-14-2019, 04:38 PM
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Re: 302 to 730 ecu

Well. I came up with this spaghetti on the weekend. Dropped a program in the chip. Car was not exactly happy and ran rich. Have a few bugs to work out. But it ran. What a difference from MAF! Even running dirty it ran differently! So far happy with the progreso soup. I may eventually just repin the car, but this works for now as it don't put me down till I have it all worked out.
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Old 01-14-2019, 04:51 PM
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Re: 302 to 730 ecu

Congratulations
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