2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Bought ECU for S5 TII, label missing how to tell?

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Old Apr 26, 2018 | 01:31 PM
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From: Raleigh, NC
Bought ECU for S5 TII, label missing how to tell?

Hey everyone, I recently purchased an S5 Turbo II ECU from a salvage yard and had it delivered. the label where it would say N370 is obscured. It plugs into the factory wire harness so I know the ECU is at least an S5, however, I am pretty sure they sold me an ECU out of a non turbo S5, but I have no way of telling, as the label on the ECU is missing. I opened it up, and on the board I see the following numbers, would anyone be able to chime in and assist on whether or not this is indeed an N370, or if I was sold a non turbo ECU.?



number on the ROM chip


Number on the PCB
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Old May 2, 2018 | 08:11 AM
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I've got 5 of the 370 ECU's in the back garage and later today I'll pull one and open it to check if the same.
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Old May 2, 2018 | 08:17 AM
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From: Raleigh, NC
Originally Posted by Turbonut
I've got 5 of the 370 ECU's in the back garage and later today I'll pull one and open it to check if the same.
you have five S5 Turbo II ECU's? you by any chance wouldnt mind parting with one would you? I haven't had any luck finding one. and since the car was originally N/A, the N374's will not work.

I've been sold one bad N370, and two fakes that were NA's passed off as N370's.

The number on the EPROM chip and board of the burnt out N370 I have is different than the one I just bought from the junkyard (that the pictures are of/the one i'm talking about and was passed off as an N370, but is an N351.)
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Old May 2, 2018 | 02:37 PM
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From: NJ
N370
Side of both boards:
079721-2283
Chip:
079753-1052
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