tclhenstra

well i cracked open the afm. the other day after a few months down. the part that curls up and makes contact with the silver part hanging over it. was cracked off. i found another one and put it in. made a little bit of a differece. but still seems to have trouble getting over 2500-3000 under load. checked the chts. i unplugged it and the car shuttered BAD. it had been changed in the beggining of the project. as far as o2 sensor i havent checked. im out of gas now. but i'll trouble shoot again when i fill up. glad to have input guys. o yeah also whats the best way to get ALL the connections cleaned. i see a lot of green oxidation on a LOT of the connectors. anyone sell a replacement harness? just curious.

yeah it's roughly 393 but i chose 400's from the first site. it's actually for a different project but still valuable info guys. much appreciated.

cool good deal guys. i think i found what i was looking for on the first website but i bookmarked them both.

we can delete this when it's answered but where in the world can i find a set of 10 inch 2.5 I.D. springs with 7kg mm at NOBODY apparently sells that spring rate i just want to know where i can get that spring at. thanks a lot guys. -tony

i pulled the plugs all white. so i'm putting a 255 pump in her. hopefully that does the trick. after 3 grand it just stops puting out power. also at a certain psi under 3 it will do the same. so it's obviously leaning out. what's a decent plug in that i put the stock ngk number in it. would it help to go up a grade?

if anyone's interested in an l28et and tranny plus ecu let me know. obviously i've been having some troubles. i was going to take it out and redo everthing. but i got a pretty good deal on another motor and tranny. i'm pretty confident it's in the fuel rail or one of the sensor anyways the motor still runs and everthings intact. the turbo spools still to. depending on where you are you'll probably pay for all of this and shipping. just let me know on here if you're interested. preciate all the help fellas.

pretty sure i've figured the problem out. i took the tps out of a 76 this week, ran like crap. THEN! BAM, horsepower! i was stoked then i put gas in it the next day and it ran like garbage. so i said "what changed in those brief moments?" so i bought a new tps and plugged the egr. behold, no more problem. i'm still keeping my hopes down but it seems pretty difinite. thanks for all the suggestions. i'll be on again shortly.

is that a 240 with the 280 in it? that's pretty much exactly how i want mines! lol same color and wheels. i'll have to get a little more original now though. what did you get rid of? i mean i see the breather cap on the valve cover and the vacuum llines from behind the throttle body. how hard was the fuel rail conversion? what cc injectors did you switch to?

is that a link to your car? if it is, DAMN! that things hot! if it's not, again damn she's hot. but i was looking at alot of things on that motor. the egr was delted. is that a comon thing on these engines. alot of things on the manifold were deleted is that beneficial to the motor or just cosmetic. but i got alot of inspiration from that site. most of that stuff i've just been trying to figure out myself and that really helped. be nice with a DIY thread. lol

sounds good. i read the TPS have some major issues with these early zx models. could that be a culprit? because when i'm all the way on the throttle, the car hesitates and sputters but the instant i let off the gas a little bit. BAM acceleration. i would think boost eccept it gets worse as the rpm's get higher. also what is the easiest way to get hp out of these. i'm tossing up a rebuild or a swap. ideas, suggestions, or contidictions? all is welcome. just getting some general ideas about the capabilities and pro's and cons to a rebuild or swap. (not to an L series probably) so i really am interested. preciate the help and suggestions. tony

it's been a while. could it be the turbo? also i've got a broblem with compression in 1. about 30. the rest are well in the 120+ psi range. not sure if it's intake or exhaust side either. sometimes you can hear it so i figure it's stuck. i'm planning on an overhaul of the motor soon anyways, cause of miles. i'll check then any sugestions to see how to fix the valves?

i put a new fuel pressure regulator on it, it ticks but so did the last one. the car runs great now. possible problems with the noise? also i'm assuming i have a bad valve in cylinder one. i've been told those are hydrolic lifters and i should pump them up to fix it, but i need to know definitively before i got messing with anything. i was planning on doing a valve adjustment anyways.

o yeah also there's only 2 wires to the sensor but the one i have, has 3 just a ground right?

NO POWER TO THE TPS. not sure why.. any ideas? the egr was going bad but my buddy said to plate it off. pro's and con's? it's deff. lean because no black smoke with the spurts. are there any relays or fuses that the tps runs through for power?

i cleaned the strainer in the fuel tank when i first resurected the car. i've sprayed most of the sensors, i'm sure i probably missed a few or something along those lines. these are a very helpful i'm gonna take a look at them all. preciate it fellers! i'll let you know how it works.

sorry i should have said earlier. i've replaced: fuel filter, plugs, wires, and a few hoses plus the thermostat. as well as buil a custom short ram after the MAFS. i've been running injector cleaner to try and prevent any gunk from getting plugged in the injectors. but after like 2nd and late in 3rd gear the acceleration picks up pretty good.

i'm a new owner of an 83 280zx l28et. it's a beast and i've got it running in no time. i had to drop the gas tank and pretty much clean the fuel system and strainer of syrup. that is left over seperated gasoline. anywho, she's been running fine as of late. but now i can't give her any gas or get up to a certain rpm before she starts sputtering out and popping. it sounds like she's burning rich when she pops but i don't see any black smoke behind me. it just pops. i'm wondering could the tps or mass air flow sensor be going out on it? or has anyone else had this problem? like i said she's old and the previous owner had her sitting in his back yard for a few years after she sat with the owner before that. anyways there's more than that but that's biggest problem, and i was hoping to get some seasoned advice since this was my first 280zx and 83. lol preciate any advice.