Unfairlady

So the car is still not running tip top. the warmer the car gets the worse the issue gets. til I get to the point where I cant touch the throttle at all. I think its the TPS. I took it apart and and it seems okay I aligned everything properly but it still is having problems. I thought I had everything exactly where it needs to be and still nothing. I have no idea anymore. I have checked everything..

Checked the compression all came out around 130-135. The car seems fine after I messed with the ignition a bit. found a leak on the thermostat housing and it was spraying right on the cap. Idk how I didn't see it before but It was a very small jet stream straight to the cap. Running 17 degrees advanced at idle on the dot. The car seems to want to over fuel. So I was going to try to adjust the AFM but it still will not rev above 3k rpm and I want to fix that before I get into the fuel ratio.

Got it running decent yesterday (still wont get above 3k RPM) but as the day went on the car seemed to be progressively getting worse mechanically. went on a drive to the gas station (around 8 miles away) by the time I got back the car was white smoking a tad bit on starts. temp was good. I didn't rag it I just cruised there and back. started missing out. so I parked it. I checked the compression when I first picked it up but Idk if it was because the car hadnt been ran in awhile the compression checked out fine but I don't know if something happened in between now and then. (I turned it over by hand when I was at the PO house to check the compression) So I am running another compression check tonight if I get the chance and seeing if maybe from sitting for so long then me messing with it caused something. I may end up in a l28 rebuild very soon. If so I am going to go higher compression flat tops and just order some webers and try to avoid FI.

I was going to try to get time tonight to check that.. and the plugs I checked and they seemed fine Sunday. Is there any other electrical sensor that could cause symptoms like this that I could check while I am at it?

Alright so I received that NA AFM and it didn't really help. I think there is something in my fuel rail maybe. I am not sure but whatever it is is getting worse and worse. It won't even move right now honestly. It won't hold an idle and is missing out bad. I am going to pull the fuel rail tomorrow and hopefully that has something to do with it.. And Hellfire, I've never heard of that before. Maybe in the future I may switch to something like that depending on price and such but for now I really just want to be able to get it going . It's becoming really stressful. And on my other car with MS3 I built it and all the such but it was more of a wiring harness issue. It was my first EMS swap and I am not much for tuning and the engine I had it running was an engine that no one really did anything like that that I could find. So i had to ballpark my tune and shoot from there and its just bad memories. I would rather not deal with that for a little bit. But atleast on this I would have good support because obviously people have done it before.

I would run a Mega Squirt but I would rather not deal with that. I had problems with my last MS. And once I get a NA AFM and go threw it alittle more I may take you up on that offer. Are you apart of "IMIN"?

That's you guys have been so helpful. Well I do have a regulator on it now so I can dial the fuel pressure in just right. And I believe they are all NA injectors. They are all that light green color and I thought the turbo ones were like a darker color of some sorts..

Alright so I put a fuel pressure gauge in and heres what I got what the fuel pump kicks on before the car start: And this is while its running at idle: And it would increase with the R's up to like 45 psi. It'll still rev like i said but under torque it wont go above 2500rpm. and It starts to get worse the longer the car runs. I really really wish I had a l24 and carbs... :disappoin

Yeah I was saying I don't have my pressure gauge to check. I coulda swore I had a pressure regulator with a gauge attached to it and I was just going to put it on there to check the pressure with the gauge. not to regulate the actual pressure of the fuel. And yes :stupid: I just looked through the thread and saw that again and it reminded me. I apologize and I will PM after I finaly get a chance to check to see if my fuel pressure is good. I think it was surging last night when I started it so I think that there is something clogged up somewhere but even if thats so it may not be all of my problem. Thanks

Can't find my fuel pressure regulator with a gauge, which is what I was going to use last night to see if I had adequate pressure. Got so frustrated I just went an ordered a cheap one. Not sure when it will be in but when it is I'll get back to this thread. Also if you know anyone that would like to trade my turbo AFM (a31-625 000) for a NA (a11-600 000 specifically) get ahold of me.

Sounds good to me! keep us posted on that. Oh and I went ahead and just grabbed a ruler (crude way to measure it I know). But here you go. its bigger then 2.75" at least but not by much.

Okay but with the NA injectors and the NA harness and ECM if I just got a AFM from a NA car (a31-060 001). then I wouldn't have to even open up a AFM or anything just slap it on and it'd work (lazy mans way out). correct? then I won't need to even do some fancy calibrating or anything. That's if the fuel system is fine.

Yeah that makes sense with the AFM, but I am wondering if that would make it get worse and worse.? and I feel like with the turbo AFM wouldn't it want to over fuel. not lean out? I don't understand any of this datsun stuff so I am just going to roll with what you said ha your definitely more on it then me. I'll just tell the fuel pressure and then I'll go from there. shouldn't take too long to do that anyways. (And yeah haha, it was 68 here yesterday (I even road the motorcycle) and it hasnt broken 36 degrees today and it was supposed to snow sometime today. And I was trying to fix the starter on my brothers mustang in my nice warm garage and of course when you go to fix something for someone they immediately ask you to "fix this and fix that" next thing I know I am putting a windage tray in and figuring out a mounting solution for his catch can.. now my garage has been taken over by a mustang...)

Yeah I am going to go get one tomorrow and put it in line. and the car looks really good in that picture. much better then what it actually looks. the cars got the clear coat coming off of it now. I was planning on repainting it here in a few months but I want to get it running flawlessly first.

I looked up the numbers on this extra distributor and people are referring to it as a Turbo Dizzy distributor people apparently use it with the MS, otherwise it wont work. or at least that's what I am getting outta these. And I just won't open the AFM then.. Ill throw a gauge in the fuel system and see what I get here in a bit. The garage is full at the moment and its dropped almost 30 degrees since yesterday, don't think I can stand being out there much longer. Hopefully have the fuel pressure checked by tomorrow evening and then I ca go from there with the AFM if nothing checks out. Again thanks for your guys input.