Auto ECU in Manual

[beastien]

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.

[Duncan]

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

[beastien]

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?

[Duncan]

Yeah the ECU was perfect, wasn't a problem until I started modifying.

[beastien]

Awesome, would it be safe to assume that it wouldn’t matter what part number/year version of ecu as long as it’s for a S2 stagea? There’s three looking at FAST. 

[Duncan]

Well, mine is a sample of 1, but unfortunately mine we the odd one out ECU that was only used for a month

[beastien]

It worked!!

[RB25DETonation]

Usually the only thing you'll notice is no rev limiter with an auto ecu in a manual 

[joshuaho96]

On 2/8/2022 at 12:27 PM, RB25DETonation said:

Usually the only thing you'll notice is no rev limiter with an auto ecu in a manual 

That... doesn't really make any sense? Why wouldn't it have a rev limiter?

[RB25DETonation]

On 10/02/2022 at 3:46 PM, joshuaho96 said:

That... doesn't really make any sense? Why wouldn't it have a rev limiter?

Probably because it makes the auto shift up instead of having a limiter

[Ben C34]

On 2/11/2022 at 6:26 AM, RB25DETonation said:

Probably because it makes the auto shift up instead of having a limiter

What are you basing this on? Auto ecus have limiters mate.

[RB25DETonation]

I've done conversions which ended up with no limiter, you?

Looking through the threads here all you do is talk shit, don't worry no point commenting on these forums these days 

[Ben C34]

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?

[GTSBoy]

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.

[RB25DETonation]

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  

[GTSBoy]

Nothing I said was wrong.

What do you know about Neos?