Roman

I ended up pulling the whole loom out to check things on the bench. It took a few hours to figure things out, I had made a few mistakes. Since I have pullup resistors on all of the cam angle sensors, the 5v supply on that loom plug splits 4 ways and joins to the signals. However I'd swapped the 5v supply wire with one of the 5v/DI signals on one half of the plug. So looking with a multimeter it still showed the correct amount of resistance on that DI, but, it was the wrong way around. Then I also found a broken wire at the plug end of one of the other DIs. Then I also found one of the pins in one of the plug halves was pushing back out when you put the plug together. So replaced the plug. I've got all of them responding on/off when holding steel against the sensors. While I was there I also changed the supply to 8v instead, hopefully less chance of trigger errors. Hopefully it'll all work okay now.

Yeah so the trigger code for the 2gr lets it run as wasted spark / batch fire until it gets a cam trigger signal. So originally i had timing 360 deg out, then it would work as wasted spark but then cut out when it found trigger 2. Ha. Yeah so there are 4x cam angle sensors for vvti, one gets connected as trigger 2 then the other 3 to DIs. According to some old posts on the link forum the trigger decoding only works if set to falling edge. As otherwise the timing of crank vs cam overlaps in a weird way for vvti range. Will do some checks with a multimeter tomorrow.

Yeah, pullup according to documentation.

Ive been making good progress on getting everything wired into the fusebox and controlled by ECU rather than hardwired. I bought 2x 500mm coby hotdog mufflers which are currently just sitting pushed over the ends of the pipes on each bank. Quieter than just open manifolds but should be better once welded. Have wired up ECT, wideband, fuel pressure sensor. The motor was still idling really high (like 4200rpm...) with fully closed throttles, even after setting everything to fully closed. I couldnt figure out why until I noticed that my 2x lower intake manifolds dont quite cover the edge of the circular holes which must be an idle air bypass. It was only by a smidge, so gooed the gap with some silicone and solved that problem. My current issue is that the cam angle triggers arent being picked up properly. This motor uses hall effect sensors on the cam angle sensors, and the voltage they output is too low for this ECU to register correctly. So pullup resistors are needed, which I have wired in. But stilk not working it seems. Some people have suggested wiring them to the 8v power supply rather than 5v supply, and this boosts the output voltage. But this stuffs up my loom a bit, as the 5v supply on that plug branches to a few other things as well as the triggers. So, another annoying problem, but not insurmountable. Just soaking up more time on little bits and pieces than expected. But thats always the way I guess!

Ahh ive always wondered what the point of those drag specific front tyres was. (For rwd)

Agreed, looks so good! Love this car. Going to come to the night speed final next Friday?

Went to pickapart and replaced the missing air bleed hoses. Fixed a few other coolant leaks. Now it's good. Bought a big syringe pump thing to fill the gearbox with oil, managed to do this notoriously messy job without spilling a single drop of gearbox oil! Miracle! Until I realized that the drain plug wasnt screwed in properly, and itwas on an angle - so I had to undo it and quickly straighten it and tighten it up. So gearbox oil everywhere still. Damnit, haha. Then I think I've still got some fairly massive air leaks, I dont have any gaskets or sealants at the moment so I'll pull it all apart and sort that a bit better. I managed to get it idling at around 1000rpm, but only because I've leaned out the fuel table so much. Again an easy fix, just time consuming. Then another cool milestone, and to be honest something I was dreading a bit - testing the clutch. Everything's good! I drove the car forward about a meter, then reverse about a meter. Which is officially the furthest it's propelled itself in about 6 or 7 years. It's still ear splittingly loud, and dear god it sounds like a straight piped RB or something dreadful currently. Ugh. Will buy some mufflers this week if I can, so I can keep making some progress without making my brain bleed. Then also have enough of an exhaust on there that I'll be getting okay readings on the wideband. Small steps but all in the right direction currently. nother

Yeah will probably merge into a single 3" pipe to back of the car. Probably better to go even bigger, or have separate pipes for each bank all the way to back of the car. But it sounds better if you merge them. Also it gets a lot harder trying to have some decent mufflers under the car once the pipes start getting bigger.

Nah, I think I punished him enough with non 4AGE related work already. Apparently he stays up late at night washing his hands, still trying to get the stink of 1NZ off them... For now it'll just be the factory manifolds and then try do the rest of the exhaust nicely-ish to suit end goals. Then flanges to suit putting some nicer manifolds on as things progress.

Yeah I bought a delorian in another 10 years time. Ive had it for ages

It's taken longer than I hoped to get to this point, but damn it sure felt good to hear it fire up. Even though all it can do at the moment is idle (poorly) at 2000+ rpm haha.

Alright alright alright! So I pushed the car outside this afternoon so I could reach some wiring inside to try fire it up. I filled the car up with coolant, by which I mean water because I was expecting things to leak. Sure enough each head had a hole up the front where water started leaking out. I couldnt remember what these were for, then found out that they are like an air bleed channel that goes back to the thermostat housing. So, these seem to have gone AWOL when moving house so I'll need to pickapart some more. I must have removed them when taking the heads off to clean them. Easy fix. Then I got the fuel pump working and fixed a few fuel leaks. It turns out that AN fittings arent very good at sealing if you havent tightened them up? Crazy. Then I got my tune somewhat sorted, and tried cranking the motor over.... and the bloody battery died! Ugh. I mucked around to get another battery, it sort of spluttered a few times but not quite. I had a look through the tune settings. Engine size was still set to 1500cc from using this ECU in the Echo - woops. I needed to disable the fuel pressure sensor allocation. As since this isnt wired in yet, it took 0v to believe that the motor had zillions of psi worth of fuel pressure. Then when I cranked the motor it was registering the crank trigger, but not cam trigger. Checked the settings, had this wrong. Both were set to VR sensors, but the crank is VR and the cams are hall effect. So once that was fixed... Bam! We are running. It was absolutely awesome to reach this point. So whats next? Lots. Get the coolant system functioning properly. Make an exhaust for it. A lot of wiring work, get the fusebox setup all connected nicely and mount all of the wiring nicely. Need to put some gearbox oil in the box, will do this before running the engine any longer. Pull the fuel rails off, and do tests to work out the CC rating and deadtimes for the injectors. Calibrate all of the sensors Mount a radiator fan Check intake for leaks (I think all of the air bypass screws are currently all the way out) Install the wideband Finish wiring up the alternator And a bunch of other little similar jobs. Most of these I can peck away at over winter with limited space. Making an exhaust will be difficult when weather starts getting darker and wetter and I can only really work outside. Will push ahead as best I can. Super excited for first start though!

If you can only find one with right geometry but too small a bore, you can get them bored out and put bigger guts in Bit more of a pain than finding an off the shelf option though.

Sidetrack to your build and sorry/not sorry. But the biggest tragedy with the 2ZZ was that they made the 1ZZ and 2ZZ completely different engines. They were trying to make a competitor to the B18C but totally missed the point in that regard. Like how good is the B18C, on account of that even the peasant versions can be awesome, with just different cams and so on. Can you imagine if every single turd car out there with a 1ZZ, had 2ZZ potential? Would be incredible! But instead we have zillions of 1ZZ turds and very few of the cool motors around.

When I took my 1NZ with cams etc for a WOF with the standard intake manifold on. You could not have believed it was the same engine. Holy crap, it turned into a slug haha. Totally choked out by ~5000ish rpm. If the 2ZR was similarly designed, it would be a night and day difference with some bolt on mods. However yes - I must concede that some motors like 1NZ and 2ZR do in fact totally suck in factory form.