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I'm looking for a replacement ECU for a manual stagea. The owner isn't interested in aftermarket/tunable options, just a factory replacement.

There's not many options out there, and I have read a few posts saying that an auto ECU will work.

If this is the case, are there any tricks to making it start and run correctly?

Comparing the two ECU diagrams, theres quite a lot going on with the auto ECU eg: Throttle switch for idle/full throttle, a number of connections

to the inhibitor switch.

I have read that you have to trick the ECU to think it's in park?

Any help would be appreciated, if anyone else has done this.

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On 2/8/2022 at 8:41 AM, Duncan said:

Sorry I don't have specifics, but I ran my manual conversion on the original ECU for some time. I believe that bridging the park switch was the only thing required

Cheers, I thought that might be the case. I’m guessing it ran fine, no idling issues etc?

Mate, an auto s2 stagea or r34 ecu ( what is being discussed here)definitely have a rev limiter.

This is for a s2 stagea that have tiptronic. They dont shift up on their own when in manual shift  mode.

What conversion did you do that had a rev limiter not work?

  • Like 1
On 11/02/2022 at 11:37 AM, GTSBoy said:

All auto R chassis (and the crappy stag ones too) have rev limiters.

Of course they have rev limiters.

I can even show you the rev limiter in the factory ROMs if you really want.

Like a few threads ago you were talking about putting 25 pistons in a 26, then a couple of threads later going on about pin height difference, you showed enough there  

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