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Old 09-11-2011, 11:31 PM   #1
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Exclamation ecu number

Sooo I have a part number on the outside case of the ecu that says 175000-1491....on the main board there's this number....175031-1380.....

Now the case says 7mgt m/t.....but in marker it says 89 supra turbo b020.....

Which is it?....
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Old 09-12-2011, 01:52 AM   #2
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Not sure what you're looking for here... but there's a Toyota part number for most major parts of a greater unit. There's a Toyota part number for the rearview mirror, but if you dismantle it you'll usually find another Toyota part number on the main body, one on the back side of the glass and one for the mount... they're internal to Toyota and not something your dealer is even going to be able to look up in most cases.

As for 7M-GT vs 7M turbo... same thing... the "E" is rather obvious as that signifies EFI which if it weren't you certainly wouldn't be looking at an ECU... lol! The rest are internal part numbers, lot numbers and revision numbers.
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Old 09-12-2011, 02:39 AM   #3
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Quote:
Originally Posted by cre View Post
Not sure what you're looking for here... but there's a Toyota part number for most major parts of a greater unit. There's a Toyota part number for the rearview mirror, but if you dismantle it you'll usually find another Toyota part number on the main body, one on the back side of the glass and one for the mount... they're internal to Toyota and not something your dealer is even going to be able to look up in most cases.

As for 7M-GT vs 7M turbo... same thing... the "E" is rather obvious as that signifies EFI which if it weren't you certainly wouldn't be looking at an ECU... lol! The rest are internal part numbers, lot numbers and revision numbers.
sooo how would i tell if it is for the 7mgte. cuz the outside sticker says 7mgt....but then theres writing on it saying 89 supra turbo. is there any way beside the sticker to tell which one is which
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Old 09-12-2011, 03:01 AM   #4
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Cre is trying to tell you it is for a 7mgte. If it was a 7mge it would say "7mg" while the 7mgte will say "7mgt". The "e" on both is for electronic fuel injection. But since you have a ecu, knowing it is electronic fuel injection is rather obvious. Also the "t" is for turbo and "z" is for supercharged like the 4agze.
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Old 09-12-2011, 04:06 AM   #5
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86-87 had yellow plugs and 89-92 had gray plugs. I'm not sure of 88's. So if it's has gray plugs it's for a 89 or high.
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Old 09-12-2011, 05:05 PM   #6
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Ohhh got ya.....yea it has grey plugs...harness has yellow so ill prob have to do some repinning won't I
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Old 09-12-2011, 06:09 PM   #7
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The yellow plugs will not fit the gray ecu. The plugs r different I would get a yellow plugged ecu or switch the hardness. I have a yellow plug ecu for a 7mgte and m/t for sell 50$ plus shipping. The guy that I got my gray plugged hardness from gave me that ecu but I can't use it.
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Old 09-12-2011, 08:33 PM   #8
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The yellow plugs will not fit the gray ecu. The plugs r different I would get a yellow plugged ecu or switch the hardness. I have a yellow plug ecu for a 7mgte and m/t for sell 50$ plus shipping. The guy that I got my gray plugged hardness from gave me that ecu but I can't use it.
It plugs in....or was plugged in before I took it out
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Old 09-12-2011, 11:10 PM   #9
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Sounds like one of those '89s which had a mix of pre89 and 89+ components... they're real fun to find replacement components for sometimes. What's your red line, 6500 or 6250 RPM? You may have either a 6M or a 7M crank shaft.

What's the Toyota part number on the ECU? Should be something like 89661-12345.
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Old 09-12-2011, 11:23 PM   #10
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Quote:
Originally Posted by cre View Post
Sounds like one of those '89s which had a mix of pre89 and 89+ components... they're real fun to find replacement components for sometimes. What's your red line, 6500 or 6250 RPM? You may have either a 6M or a 7M crank shaft.

What's the Toyota part number on the ECU? Should be something like 89661-12345.
it is.......89661-14260
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