The 510 Realm

02.16.2009: Picked up an O2 sensor and gauge. Not a fancy wide-band one - just one that tells me if I'm lean or rich. I had to plasma cut a hole into the exhaust, weld in a bung, and then put together the wiring. 02.24.2009: Finally got around to fixing a pesky oil leak from the oil pan. 03.15.2009:...

01.26.2008: VROOM VROOM again, but this time with the SU carbs. Got the timing sorted. https://www.youtube.com/watch?v=ubYFJYRNWHI Odd throttle cable hack I put together: http://newprotest.org/projects/510/images/20080126_cable.jpg I took the cable wheel off of my old 200sx intake and simply welded ...

Man... I forgot that I started this thread and just noticed that some people asked about the build back in 2006 and I never got around to responding. I think that's because I jumped ship over to Ratsun for a while. But the engine did progress and actually move into completion. Here's a quick rundown...

Excellent. Donated! Not to sound sappy, but having been around for a while (not nearly as active as some of you), I'm so glad this community exists. Almost everything I've learned about cars in general and 510s in particular has come from here. And for the folks who have seen my journey start from &...

Cool. I don't have a consult cable yet, but I may end up getting one. However, it looks like I can test a few things without it. I haven't ran voltage or continuity checks all the way down to the ECU yet so I'll do that tonight when I get back home. I FEEL like those checks will all pass, though, on...

PoorMtnKid - I'll for sure take that MAF. I want to at least swap it out to see if it makes any difference. If it doesn't, I'll send it your way, S15DET. okayfine - the MAF's output appears to be 1.7v as expected when air is sweeping across the sensor. I could be wrong, but I imagine that the ground...

Has anyone donated in a while? Is the paypal address still active? I feel like making a donation, but I want to make sure that it'll actually go somewhere.

Welp, unplugging the O2 sensor did nothing. So that's not likely the problem. ha. I tested it a ton, and it looks like it is pushing a constant 1.7v at idle through the volt meter, but once I touch the MAF signal terminal to the signal wire, it leans out. Interestingly, after the car has warmed up q...

Yeah - I can pull voltages from anywhere. So, I know the MAF isn't dead - it's providing the right voltage when I'm reading it directly while it's bolted up but unplugged from the ECU. It's reading 1.7, 1.8v which is precisely where I want it to be at idle. And while it was sitting there running, th...

Sweet. Once I yank the O2 sensor and see if that resolves the issue, I'll let you know. From my readings, it seems to be behaving correctly (unless there's a big voltage drop after a few seconds of running... but again, that SEEMS like an O2 sensor issue, not a MAF issue), but we'll see. Thanks!

Thanks. I LOVE troubleshooting. And I look forward to getting this tired SR20DET (which needs a rebuild anyway, sigh) back on the road. I've had it running (terribly) a few times before I had any gauges installed, so I'm pretty sure I was beating the motor up even more. Now that I'm fine tuning ever...

I *think* I've narrowed down my probem to the MAF. When unplugged, the engine runs very well, and my wideband O2 gauge reads around 12:1 to 13:1... so a little rich, but ok. When I plug the MAF back in, the engine leans out entirely, causing the engine to stumble and die. The first thing I did was t...

I think my exterior door handles came from a 210 or something. Interior door parts seem to be pretty interchangable as well.

And video clip of the engine running:

https://www.youtube.com/watch?v=clTib9NbIy0

Been a while since I've posted. Here's a couple of quick updates: Upgraded the gas tank to an in-tank system by cutting/welding the top of a 1996 Civic tank onto the 510 tank. http://newprotest.org/projects/510/images/20131205_pumpSealed.jpg http://newprotest.org/details.pl?1609 Squared up the wirin...