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What Blue said.

When you lift the piston with the little test rod, you disable that carb. So when you lift the front and nothing changes, it's because the front carb isn't doing anything to run...

Yeah if you've got fuel pressure on the needle and seat even with the engine off it's possible that you're bleeding that pressure off into the bowls slowly overnight and starting flooded every...

It sounds to me that you're thinking the needles cause the fuel level to rise when they are inserted into the nozzle? If that's the case, you have to remember that unless you pulled the needles out...

Gotcha. My original AAR didn't work right either. It was mechanically fine, but electrically intermittent.

Anyway, welcome aboard and glad you got your car running well. Here's hoping you get to...

There's good info on the AAR in this thread:

http://www.classiczcars.com/forums/fuel-injection-s30/47447-help-me-understand-aar-please.html

About a third of the way down, there is some...

I've seen plenty of flexible of PCB's but never out of fiberglass/epoxy. Nothing wrong with trying, but I don't think it'll take enough of a set unless it was molded like that originally before the...

Cool. I've been continuing to think about this and I'm still thinking you need to take a close look at your fusible links. The more I think about it, the more an intermittent connection to the black...

Good luck and keep us posted!

That won't work right. The AFM won't know about the air being supplied by the AAR and you'll run lean until the AAR closes.

Haha!! Yes you did! LOL

Well that's sorta too bad that it passed. Makes it harder to find the problem.

Next thought is that the alternator is doing what is expected of it, but the fusible link connection between the...

TomoHawk, The original festoon bulb is what they considered a 31 mm festoon, but that's measured tip to tip, so it's hard to draw any correlations without actual drawings of LED replacements.

I...

Wait a minute. I want to make sure I'm doing the math right... I can give up the wife for a car like that?

I can't see the control signal tubing at all. I suspect it's been removed and disabled ever since he swapped in the older SU's.

There is a vacuum port on the original rear flat top carb that is a...

Yeah, those will work fine but aren't stainless.

No biggie, but I just prefer the OEM style.

I was originally going to suggest that it's easier to pull the whole dash first. If you've got small hands and are part contortionist it's not "really" necessary, but I've found the extra time I...

That's the EGR control valve. (EGR started in 73 which is why your 72 didn't have this device.)

The purpose of the EGR system is to reduce oxides of nitrogen (NOx) from being released into the...

I couldn't get the ebay link to open, so I can't tell for sure, but I've never seen small hose clamps that were as good as Nissan OEM. The OEM ones are full stainless and everything I've ever run...

Glad to (try to) help. My additional advice would be to take it to SteveJ's place and distract him with a Digi-Key catalog. Tell him the centerfold this month is excellent or something.

Then when...

Howdy Neighbor! I'm in the burbs north of the city. Car looks great! Congrats!

I'm no expert, but if you need help, give me a shout. I know some stuff.

Recent discussion on the same issue. Maybe some help in here?

http://www.classiczcars.com/forums/electrical-s30/53259-parking-interior-light-fuse-melting.html

Wait a minute... Last I heard, you were driving around with your headlights on and your alternator had failed. Your battery voltage was dropping? "A minute or two later, I was getting 12.8 and slowly...

Yeah, that sure starts to sound like marketing propaganda aimed at increasing your own sales by torpedoing someone else's product.

I used to take my GM to 6000 RPM every once in a while and it...

I'll put in a third vote for this. The internally regulated system either works, or it doesn't.

You mentioned your charge lamp flashing yesterday... Does it still work today? The CHG lamp should...

Yeah, I grew up on the incandescent as well and completely understand. That whiter than white LED thing just doesn't work for me either. I don't know if it's all mental, or age... But I just don't...