KA24E (i know) loss ofpower when warmed up?

whats up peoples, ok i searched everywhere and now im asking the experts, i've had this car since 2001 drove it til 2002 and stored it til 2006, i started driving it again in 2006, when i started the car it would run fine, after it was warmed up i noticed from a stop it would take off really fucking slow as if it had no power.

til this day it does it but now it's driving me crazy, i checked my vacuum lines, tps, fuel injectors, fuel filter is new and grounds are good also the ecu is only giving me a 55.

anyone got any ideas? only when the car is warm from a stop it will drive like i have 2 fat guys and three midgets sitting in my trunk it's a SOHC with 230k on it im just trying to keep this motor running until my swap, i searched google and other 240sx websites and everything i came across were not answered or flaming or shit i already checked on my car.

im stumped so that why im asking the experts on here, thanks in advance

Most likely cause of the miles son.

I mean its a fucking SOHC with 200k+miles on it.
It made like 135 horsepower in 1990. Its now 2010.
What do you expect? Its not going to rip your face off.

factory exhaust still? Backpressure test for the cat if you still have one....

Check compression?

USAIR!

VanillaFace wrote:

factory exhaust still? Backpressure test for the cat if you still have one....

Check compression?

i didn't even think about that, i'll pull the cat later, compression was 165 across the all the board, couple people say thats bad and others say its good, i dunno the factory specs for compression, good idea about the cat

whiterps13 wrote:

I mean its a fucking SOHC with 200k+miles on it.
It made like 135 horsepower in 1990. Its now 2010.
What do you expect? Its not going to rip your face off.

im not expecting it to be a race car, i just want my car to move from a stop sign, but thanks for the help lil guy

Maybe check all your ignition components. Pay special attention to your plug wires. You may need to upgrade. There are ALOT of variables here.
" Compressing air raises its temperature. However, you would like to have the coolest air possible in the cylinder because the hotter the air is, the less it will expand when combustion takes place." Causing loss of power. Also your thermostat. It's probably running hotter than normal.

spark or fuel

^This guy's posts are starting to crack me up.

jdmj914 wrote:

Maybe check all your ignition components. Pay special attention to your plug wires. You may need to upgrade. There are ALOT of variables here.
" Compressing air raises its temperature. However, you would like to have the coolest air possible in the cylinder because the hotter the air is, the less it will expand when combustion takes place." Causing loss of power. Also your thermostat. It's probably running hotter than normal.

well im doing my plugs, wires and thermostat tomorrow so hopefully that will help, i'll most likely pick up a new ignition coil tomorrow.

blklabel44 wrote:

spark or fuel

well thank you bill nye the science guy



i checked my cat converter, looked ok, i borrowed my friends and put in on my car, drove her around and same shit so the cat is ruled out.

bill bill bill bill bill bill bill bill bill

check for vacuum leaks. around the intake tube and stuff.. sounds like maybe un metered air?

just a thought. without a video. or a better definition i cant tell. it was pretty vague definition. does it sputter. or does it just feel really really slow?

Dis guy^^^^^

hs13kls wrote:

check for vacuum leaks. around the intake tube and stuff.. sounds like maybe un metered air?

just a thought. without a video. or a better definition i cant tell. it was pretty vague definition. does it sputter. or does it just feel really really slow?

a video would not help, actually have to be in the car to notice it, vacuum lines all checked out good, i doubt it's the MAF cause i can rev past 2500 rpm just fine, no sputter and no misfiring, all i can tell is when the car gets warm thats when it does it, a few times it felt like it wasn't going to move, it only does it when im at a red light or a stop sign, only the initial take off other than that the rest of the gearing feels good, definitely not the clutch slipping, feels like im trying to pull a semi truck with my car.


i say mods change blklabel44's name to bill nye

so did everything, piece of crap does the same thing, like there's no torque, only when it's cold it seems like it has torque, who knows?

whiterps13 wrote:

I mean its a fucking SOHC with 200k+miles on it.
It made like 135 horsepower in 1990. Its now 2010.
What do you expect? Its not going to rip your face off.

What more do you need to hear? truth sucks

Your a fucking idiot. And youve got one foot out the goddam door. He is describing a sudden and almost complete loss of power and forward propulsion. Not a tired fucking motor. Have you ever driven a single? They arent any slower or weaker than a twin cam.
Bunch of fucking idiots.

Buy another one with less miles. SOHCs are like $100.

Those things are getting harder to find.

DOHCs yes, SOHCs are still pretty easy to come by. Most are beat to the ground though.

DS D*star wrote:

Those things are getting harder to find.

im with D* on this one, when i see a SOHC, it's blown or in pieces with missing shit, DOHC are easier to come by lately from what i've seen on craigslist, a person i know had given me a single cam and said it ran fine, seemed like i scored a deal till i took it apart, looked like he ran it with no oil and piston rods were bent to shit. luckily i didn't try to put it in or pay for it at that matter.

ok i finally found out the problem, fuckin temp sensor is fucked up, i disconnected it and drove it for like and hour and nothing, it even starts up on the first time every time, the sensors i keep getting from vato zone arent working i guess or they are wrong, the OEM one i have is red where the wiring plugs in, the ones i get from vato zone are black and thats all they have by what they tell me, $26 down the fucking drain, anyone have a SOHC coolant temp sensor i can buy? i got a for sale tread if you wanna check out i will do an even trade for the stuff i got for it if you need anything i got, if not just let me know a price cause im not wasting time with vato zone

All S13 temp sensors are the same. S14 are different. Color shouldn't matter, and most of the time different part companies use different colors. rockauto.com has sensors for $7-25 plus shipping.

AIRTEX / WELLS Part # 5S1523

NISSAN 300ZX 2+2 (1989 - 1996)
NISSAN 720 PICKUP 1986
NISSAN AXXESS (1990 - 1991)
NISSAN AXXESS 4X4 1991
NISSAN D21 PICKUP (1986 - 1994)
NISSAN D21 PICKUP SE (1991 - 1994)
NISSAN D21 PICKUP XE 1994
NISSAN MAXIMA (1989 - 1991)
NISSAN MAXIMA GLE (1995 - 1996)
NISSAN MAXIMA GXE (1992 - 1996)
NISSAN MAXIMA SE (1992 - 1996)
NISSAN NX (1991 - 1993)
NISSAN PATHFINDER (1987 - 1992)
NISSAN PATHFINDER LE (1994 - 1995)
NISSAN PATHFINDER SE (1990 - 1995)
NISSAN PATHFINDER XE (1990 - 1995)
NISSAN PICKUP 1995
NISSAN PICKUP KING CAB XE-V6 1996
NISSAN PICKUP SE 1995
NISSAN PICKUP SHORT BED XE 1995
NISSAN PICKUP XE 1995
NISSAN PULSAR NX SE (1988 - 1989)
NISSAN QUEST GXE (1993 - 1996)
NISSAN QUEST XE (1993 - 1996)
NISSAN SENTRA (1989 - 1993)
NISSAN SENTRA CLASSIC 1993
NISSAN SENTRA E 1994
NISSAN SENTRA GXE 1994
NISSAN SENTRA LE 1994
NISSAN SENTRA SE 1994
NISSAN SENTRA SE-R (1991 - 1994)
NISSAN SENTRA XE 1994
NISSAN STANZA (1986 - 1992)
NISSAN VAN (1987 - 1988)

thanks a load, the ones i kept getting from vato zone are black and didn't have the grooves like my OEM one does so the connector can fit onto the sensor, now a dumbass question, i ran it for the past two days without the sensor plugged in, my gas mileage went up significantly and my start ups also start on the first try and no more loss of power, anyways will running my car without the sensor mess up anything?

just til i get the sensor in, thanks for the website and part number, nissan wants $64 for one.

That just sends the information to your temp gauge on your dash.
So if you're positive your shit is not gonna overheat then go ahead rock out.