lowrider

Im running close to that size. I have 225/69/15 all around on my 260. I have 15x8 with a 0 offset. The front is really close to rubbing my spring perch.

Dave, your in Tennessee?

The poping through the intake is an indication of it being lean. It seems like in the video when you stoped cranking and let the fuel pump run it tried to run. I would sugest putting a fuel guage in the line to see how much fuel pressure you are getting at startup. Ofcourse im just throwing things out there, someone who has more experience might like to chime in. You can ground the AFM to any bolt that connects to the body, as long as its grounded.

Well, I have once again changed the direction of the drivetrain for the car. I pulled the engine and transmission out of the zx parts car. I removed the head to find the cylinders in good shape. The head on the other hand needed a little work. With a simple leak test, my dad and i found out the valve seals for #1 were leaking pretty bad. So off to the machine shop the head went. Got the call the next day to come pick it up. Boy, i love fast turn around! Not much had to be done, just a valve job and a little trueing of the various surfaces. At the moment im currently waiting for the weekend to be over so i can call monday and have a head gasket kit and timing set ordered. On to the pics!!! A couple pics of said parts car The motor nested snugly in the engine bay Out!!! and headless The "Leak test" And after the spa day at the machine shop The cam was replaced in the motor and i have no idea who makes it. I have busted out the calipers and determined that it has less lift than a stock "A" cam. A pic of the markings on the end: Im sorry for the picture quality diffrence some were taken with my phone and the rest were from a crappy digital camera.

I would sugest searching for the "EFI bible". It has the procedures to check the ohms of the tps, along with the specs that it should be at.

did some wiring research, and ran into a bunch of turbo examples. Looking over these threads i think ive figured out where all the wires on this plug go! black/white...goes to a 12v switched to turn on the efi relay green...fuel pump relay yellow...As far as i can tell its not used blue/red...fuel pump relay

No one can help me out here?

Ok, The plan was to take said 81 280zx donor car strip the ecu, and efi wiring from the car to be put onto a L26 that resides in my 260z. Lets start from the begining (This is going to be long winded). I have a set of 3 screw round top s.u. s currently on the car. The car drives good, is real smooth but the horrid cold nature of this beast gets under my skin! I have an 81 280zx donor car that i am taking the transmission out of to swap anyways so why not go ahead and convert the L26 to efi "while i was at it". Today i pulled the zx onto the lift anticipating that the wiring wouldnt be too difficult to strip from it. I guess i seriously misjudged my wiring skills. After reviewing the wiring schematics for about an hour, i start disassembly. It began with two plugs underneath the drivers side kick panel. The first was a single wire plug that had a yellow wire attached. I later determined with the help of my haynes manuel's wiring diagram to be my ignition switched 12v power source(when in the on position). Ok, i think i have that one figured out, on to the next connector. Now i have no idea what this connector even remotely goes to, this is where i start needing your guys' help. This connector is also located in the drivers kick panel. Its a two prong conector with a White/red wire and a Red/black wire. I have no idea what this is. Ive tested it with the ignition on, and no power. Ive tested with the vehicle turning over, and no power to either prongs both times. Ok, the rest of the wiring is straight forward untill i get to what i think is the ecu relay and a handful of wires leading back into the passenger side of the car. From what i can see the efi only uses one side of the fuseable link. Resulting in the Brown and Green wires having 12v constant. Correct me if i wrong, the Brown and Green wires should be the only wires that give the efi power right? And then there is what i believe to be the efi relay... Now the part that confuses me the most. Off of the loom that carries the wires across the engine bay there are four wires that combine to make a four pronged plug. Like i said before the one side of the plug goes to the main efi harness, the other side however snakes through the inner fender and into the tangle of wires that seem to accumalate in the passenger foot well area. I finally tracked down the fuel pump relay with the help of my haynes manuel which tells me the wire color code and what component it goes to. The fuel pump relay uses the blue/red and the green wires from the 4 prong plug the other two wires i have no idea where they go to. When i looked at anothe schemaic of the year models' efi diagram it claims to have 3 fuel pump relays? I could only find the one that had any wires in common with the efi harness. efi side--------body side blue/yellow----black/white...I believe this to be the tach signal? blue/green-----green...fuel pump relay yellow/black---yellow...I have no idea what this wire does. blue/red-------blue/red...fuel pump relay After all that long winded post here is the summary: -what does the two prong connector with the White/red and the Red/black striped wires go to? -Are my guesses of the wires and their purposes' so far correct? -Is there more than one efi relay on the car? -What does the yellow wire go to? -What does the black/white wire go to?

Oh boy! I cant wait till you get the car finished and terrorizing the streets of Knoxville. No cars and coffee for me! I have the datsun apart swaping fuel injection onto the L26!

Your car is clean!!!! Did you finally make the move to knoxville like you said you were?

Ive been making some progress on the EFI conversion onto the l26. I pulled the intake mainfold off of the l28 i have in the garage. Stripped it down and am in the process of cleaning it up so i can powder coat it. The project has kinda taken the back seat for the time being. The majority of my time this passed week has been spent working on a good friends mustang drag car. I helped him replace his torque converter to try and improve his 1/8 mile time. He took it to the track today and ran a 6.00 on nitrous, he is looking to hit 7.58 so we are going to pull the converter again in favor for on that locks earlier. During the process i got struck by boredom and took some shots of the cars that reside in the shop. Wes's mustang Daddy-o's nova Daddy-o's 31 model A The motor the intake came off of, Its a n42/n47. The intake conglomeration with the wiring harness Everything stripped off. I finished sandblasting the intake today. If all goes well, it will get powder coated machine gray tomorrow. I actually have a question. I plan on using a 280zx wiring harness and ecu to power everything. I was wondering what significance is the o2 sensor to the 280zx ecu? what does it control? does it have such a profound effect that it would hurt to not have it?

Well, i dont think he is going to update the thread anytime soon, so i will for him. lol He got the car out of the woods, and brought it back to a safe location. The car isnt in too bad of shape. I went over and looked at it, it has tons of nice parts that could be polished back to new. We need to pull the head off to inspect all the usual. The head appears to have some work done to it, but untill we pull it its not for sure. As usual school kinda took priority so the car is just sitting there waiting to be torn into.

Well, as i said last time i was in need of some tires. Went to the local tire shop and decided on a set of Fuzion HRi all season tires. I could'nt be more happy with them the feel and response of the car has changed dramaticly. Here are a few before and after pics. lol Bald rear tires!! The new Meat! Well, i knew i had a problem with my front lug nuts for a while. When i had the tires put on they brought it back to my attention. The old lugs would only enguage about 3/8in of the threads. I picked up a set of lugs that were drasticly longer only to find out that they were too long and bottomed out on the hub. Luckily a good friend of my dad's, and mine owns a lathe. He cut them down for me and now im back on the road again with alot more lug holding my wheel on. old V.S. new The old lug with the threads on their last leg.

well, i havent updated this in a while... sorry. Ive been living with the oil leak, and just keeping a couple of quarts of oil in the car at all times. Been driving the car all summer, the l26 runs like a champ. Im going to try some seal softener to try and dry up my oil leak a little bit. im trying prolong ripping it apart, so i can fix the leak and put in the 5 speed at the same time, no reason to do it twice. Hopefuly now that school has started back i can start working on the car again, and make a little progress. I took the pics below a while ago and forgot to add them to the thread, whoops. lol enjoy!! Im getting new tires tomorrow, the cheap off brand tires that are on it are getting bald in the rear after only 10000 miles too. Getting a set of Fuzion HRi hopefuly they are up to the challenge.

im rocking the doo doo brown.

Ugh, im 3 days into my sophmore year at the local community college. work load is'nt that bad. I have cal and physics on mon, wed, fri. And econ and computer sience on tue, thurs. Hopefuly if all goes well this semester and next, ill be transfering to U.T. fall next year.

I can vouch for the solidness of the car. granted it has some rust in the normal places like the floor pans, front fenders and dog legs, it is definetly repairable. I hope to help out and watch this car grow into a monster. Cody, im going to try my best to get that turbo tom setup from you, no matter what it takes. lol

I also have this on my 260, i have no complaints so far. Its been on both my cars and does the job well.

Thats an interesting question. If im not mistaken, I dont think that the ecu controls spark or else the ignition box should'nt have worked on my car. Ofcourse I dont have much know how on the subject beyond my ignition experiences.

Sorry i havent been on in a while. The one i pulled looks like the one you linked to. I cut the plug off of my original ign box, and wired it into the new one, that way it utilized the stock plug. Even the 77 ignition box bolted in the same place on the firewall as the original.

i had a faulty ignition box on my 260, i went to the local pull-a-part and used one from a 77 280, wired it in and went on my merry way.

man, this car looks bad ass!!!!

Damn, looking good!!!

RUZN, i uploaded them to photobucket then copied and pasted the links. Jerry, its actualy the factory doo doo brown. I didnt really care for the color at first but its actualy grown on me.

Thanks! I didnt realize that the camera's date was so screwed up till after the fact. lol