ECU Upgraded?

[tomtastic]

I was checking the ECU and there's a sticker on it from Jim Wolf Technologies, POP upgrade Package for 90-92 models, can't seem to find any info on it. The only number is 232FA20T. It has a Nissan sticker too lower right corner. So has this ECU been upgraded then? Just bought the car so I have no idea.

[itsa300zx]

Yes it seems to be upgraded. If you call JWT, and give then the number, they can tell you the program. (ie injector size, octane etc.)

[tomtastic]

sent them an email with info, maybe they can tell me what it is. Most other stuff looks stock.

[itsa300zx]

It's common to have stck components and run slightly higher boost, supported by the re-tune of the ecu chip. Giving you about 390-400 hp for a stage 3 TT