IM SO CONFUSED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!1111!!!!two!!!!!!

 

yea me two, what link and what file via port 80?

 

The link to the "how to win the internet" no idea what file, firewall got to it though, go threatfire!

 

Anyway, pics posted tommorow.

 

oh i didnt clicky on that one, whiew.

 

That link didn't screw up anybody else... Including me.

Maybe your computer has other issues.

Anyway, I'm a sarcastic jack *** that offered my sincere advice on fixing your problem... TWICE.

Now, STFU n00b!


Rod.

 

If we can't fix the idle problem we'll drop this in.

 

Not a very wise choice to throw in an old junky V8 just because of an idle prob... hopefully you were kidding. Anyway, did you adjust out this idle screw??? It looks pretty far in there... prolly needs to be backed out a bit.

 

All the way in and all the way out, still no change, the lowest we can get it to go is 1400-1800 RPMS...

of course I'm kidding! the 440 is for that sandblasted RoadRunner in the background.

 

Breaking news:

The idle problem was caused by the shop that last tried to smog the vehicle, for some reason, they took off the distributor, and put it back one or two teeth over, upon adjustment it idles right at 700-800.

We've got a new problem though, the RPMs won't stay constant when using the accelerator, say you were in 5th gear doing 55mph, the RPMs would surge and fall, which might cause a lurching motion while in motion. What could this be? In other, other words, we can't hold any RPM value constant, as it continually surges and falls.

 

Yeah somebody definately switched out the intake. That would explain why you have no EGR at all. Even the oil cap looks different from 280zx's I have seen before. So anyway I also noticed you don't have a fuel/air mixture screw. I use that on my 280zx's to adjust the idle, after setting the AFM mixture. But maybe check your timing, and see where it is at. It should be at 8 degrees before top dead center. That is all I can think of for now. I am a loss at the moment. If I figure something else out. I will be sure and post it here. Good luck and welcome to Zdriver.

 

Maybe try the AFM rebuild which is a sticky in the technical section. Just a thought, a start to try and fix this problem. Here is a link

https://www.zdriver.com/forums/240z-280zxt-s30-s130-tech-tips-275/js-how-rebuild-your-afm-15277/

Also make double sure, all your vaccum lines are not cracked, brittle. Also make sure they are plugged in. There are no vaccum leaks. Comb the engine bay real thoroughly and such. Make sure everything is plugged in. All contacts are clean. And use WD-40 with a brush to clean the green stuff off the contacts on the various plugs. AFM, TPS, Fuel Injectors Any other kind of sensors etc...

 

We don't have a timing light yet, so we can't set it at 8 degrees before exact, we set it based on ping startup. It's primitive, but it works. We do have an Air fuel mixture screw! We were just tweaking it. We'll get the timing precise ASAP, for now though what could be causing that RPM surge?

 

So were you kidding when you said this?

Kinda hard to help someone with a problem, if they don't do the things we tell them to do.

You can get a timing gun for about $5 on ebay... $20 from your local parts store. It's a necessary tool to repair cars, just like screwdrivers and a ratchet set.

 

Yeah, upon further thought the father in law did indeed go to a shop which did all manner of things to the car for smog regs... He made it pass apparently, yet didn't replace items as they were. At least we don't have to abide by smog anymore!

Yeah, we'll get one of those, and the rebuild on the AFM is going to have to wait for tommorow, sadly, because we have to go to some damn meeting.

 

ok, what was 2-3 teeth off? distributors can only go on one way... oil pump shaft can go in wrong but there would be NO reason to drop that for smog reason. and how would you know if the dizzy was off timing and is fixed now without a timing light? are you just playing with the timing without a clue of what your doing?

alos, WTF intake manifold is that? its def not a N42 because it has the webbing.

 

Silly boy... low timing = better emissions.



I think there is a rare P79/P82? intake that has webbing but no EGR.

 

erm.... you can do that by rotating the dizzy itself, thats why i said there is no reason to drop the oil pump, at stock setting you should be able to work it between about 0 - 18 degrees by just turning the dizzy with the recomended oil pump shaft placement. that was my point, nothing with lowering the timing for better emmissions...

silly boi!

 

Does the "surging and falling" happen around 2-3 K?

If so, it's most likely your TPS (Throttle Position Switch). It may have gotten wet. Check the connection.


Rod.

 

They didn't "DROP" anything, as far as we know, but they certainly effed with the distributor, "taking off" the cap and moving it slightly.

The surging starts at 2k and moves up from there, gosh it makes me mad, such a nice car with such annoying problems!

Ultra rare intake manifold eh... That's a cool developement, is there any advantage to having it? God I hate office parties.

Oh god, I just remembered...

Yeah, we're going to need the TPS reports resubmitted with the new cover sheets.

 

#1... Buy a timing gun and check the timing.

Since the beginning of this thread, the car has obviously been "messed with" trying to get the idle down. Something could be out of adjustment now.

And no... nothing special about your intake... no super powers or anything. Just more rare.

 

Did I mention my dad is an ASE certified technician who practiced from 1987-2000? I couldn't call his work "messing" with anything. The guy knows what he's doing. But yeah, our timing light is effed up, it won't catch a spark anymore. So we've got to get a replacement. Good suggestions all around, though. Thanks 1,000,000

He's going to check the TPS tommorow and I'll go for the AFM rebuild. Updates to follow.

 

I believe Nismo is right on the intake. Like I said in another thread someone on HybridZ was mentioning the webbed intake that came off a ZX that had no EGR. P82 or something like what Nismo said.

Timing is everything, when I got my 280ZXT it ran like crap, and it made a world of difference when I finally got a timing light and adjusted the timing. Sure there were a lot of other issues to go along with it, but that helped alot. Also you can use the timing to help compensate for other issues.

 

Yeah, slowly but surely we will address all issues and have a pristine car. I really wish I could just spend a full day on it (even if it is onyl sunny for like 8 hours.) but the real estate market is tough, so my dad's attention is largely divided. If what I type seems off, don't worry about it, he tells me what to type, I type it as I hear it, I never really connected with complicated motors, more of a motorcycle mechanic (say what you want I will always say motorcycles are much simpler machines!) or an electric guy, so the AFM rebuild is right up my alley. We'll get this thing perfect, just a matter of days. It's going to be sweet when I paint it, I want to go for a 1970s lime green, like what came on the Hemi Cuda.


If I went to college here I would keep it, lime green with a shutterback.

That is a shutterback (the plastic finned window cover)

 

...... louvers?..... this shutterback you speak of, where did this term come from? looks like ima have to wikipedia it