Nice job

All part of the emissions strategy the manual ones used to rev above 1000rpm if you clutched in was better for emissions to keep the revs up between shift. the later years there's no real decel when doing 50 due to high timing on closed throttle and targeted rolling idle speeds etc

That's cool as we were all digging into these things as a hobby more than anything back when the page started and a lot of us still do with varying ecus when we have time

Reducing the amount of fuel injected

They have allways been expensive for genuine ds1245y I have 2 different batches of clones that were about $4.50 each that I bought for a laugh one lot was just crap the others are still keeping data retained and still operate years later so does my original nvram that was in the 1st nvram boards eve...

The swinging also fills the catalytic convertor with excess o2 each swing lean so it can do its job burning off the bad stuff

The ecu swings the fueling rich and lean between roughly 0.400 and 0.600 ish volts depending on what's set in the tune if it swings too far either side it will correct it with the short term fuel trims. The trims will never be perfect and will vary day to day a little bit.

If you don't labour it under the load and send all the convertor clutch material right through the box you should be fine it isn't a manual clutch that's made to have much load on it

That is exactly what holden did chased the tcc settings for emissions/economy targets. In vn vp it only locked up at 80 odd kmh and above and unlocked pretty easy by the time vx and vy were here they were sliding the lockup in slowly to slow the load on the engine for economy and shift feel they als...

NOS means new old stock so they can't be any worse quality than what the car came with. That listing though does say one peice has been glued back in haha