3500 RPM, falls on its face

[hotrod]

:mad: nissan pickup with the 2.4 4cyl when driving it once it gets to 3500 rpm it completly falls on its face and wont pick up untill about 2700 rpm, wht gives? somebody chime in :confused:

[Hope Springs Hauler]

plugged fuel filter?

[hotrod]

i guess that a possability, never really thought of that to be honest, i was assuming spark. it has a check engine light on but its OBD1 and i dont have a scanner that will do one i have an OBD2 scanner.:(

[gothodgie]

i had a 88 mazda p/u that did the same thing... Took me forever to figure it out... The filter was almost on top of the tank... Fuel filter fixed it...

good luck
Chris
:beers:

[hotrod]

awesome thanks chris i looked online and i guess the filter is on the right side on the fire wall and its only 13 bucks im gettin a filter as soon as i get off work here

[hotrod]

negative on the fuel filter :mad:

[bgwyllys61]

cat, converter? had a ford truck do this same thing, ran great except for a certain rpm, it wouldnt do anything, but if you got past it, or before the rpms it ran fine

[humpy]

sometimes with obdI you can get in your book and there will be 2 pins you can cross on the plug with a paper clip or jumper wire and it will make your service light flash a certain pattern when you turn they key on and that pattern will be in defined in your book (haynes)...hope this helps..

[gothodgie]

negative on the fuel filter :mad:

damn.... good luck...:beers:

[hotrod]

cat, converter? had a ford truck do this same thing, ran great except for a certain rpm, it wouldnt do anything, but if you got past it, or before the rpms it ran fine

really? hmm ill look into that :beers: thanks

sometimes with obdI you can get in your book and there will be 2 pins you can cross on the plug with a paper clip or jumper wire and it will make your service light flash a certain pattern when you turn they key on and that pattern will be in defined in your book (haynes)...hope this helps..

ahh flash codes :cool: thanks

damn.... good luck...:beers:

ya, thanks anyway tho!! :beers:

[KargoMaster]

cat, converter? had a ford truck do this same thing, ran great except for a certain rpm, it wouldnt do anything, but if you got past it, or before the rpms it ran fine

I was also thinking cat. converter after the fuel filter struck out... I believe that we had to drill holes into one on an historic road-trip down to the Gorge.... was a Ranger towing a Zuk.

[hotrod]

unbolted exhaust before cat... and.... still same thing. :(
also bought a new dist. cap and rotor button and that didnt help either.
noticed that the dist. looked retarded.. ;) so took it loose and forked around with it a bit. got a little better but went up to about 4100 rpm b4 it starts its s41t

**Also, if you mash the skinny pedal from idle it stumbles over itself, clears up about 1300 then starts to its normal bull-snot at 3800 :mad:

im going to buy a chiltons i guess, insted of throwing parts at it :rolleyes:

[KargoMaster]

poop.

[gothodgie]

poop.

x2

[Hope Springs Hauler]

Does it happen anytime, or only when warmed up? Wondering about the o2 sensor.

[hotrod]

Does it happen anytime, or only when warmed up? Wondering about the o2 sensor.
Happens anytime warm or cold was wonderin injector? Like i couldnt keep up with the demand

[way2fast4u]

i had a 89 nissian hardbody 2.4 or z24 something like that i had the same problem ended up being the computer had dust all on the inside of it. it was like a rev limiter at 3700.it was the computer under the seat was number 23 on mine if u try it get the exact same number computer. hope this helps good luck ;)

[hotrod]

i had a 89 nissian hardbody 2.4 or z24 something like that i had the same problem ended up being the computer had dust all on the inside of it. it was like a rev limiter at 3700.it was the computer under the seat was number 23 on mine if u try it get the exact same number computer. hope this helps good luck ;)
How much was the computer you got? Wonder if i could go to you pull and pay and swipe one out of a car

[way2fast4u]

i went to besslers and bought 3 didn fix it went to advance auto payed 200 for one and drove it till i sold it if u find one with the same computer number i think you would be ok but i couldnt find a 4x4 nissian at the scrapyards with a 2.4 in it so i tryed a bunch of 2wd doesnt work :rolleyes: hope this helps steven

[hotrod]

ok cool thanks also found online it might be a maf sensor :confused:

[flatlander757]

Have you replaced the crankshaft sensor? Or inspected the flywheel/trigger wheel/whatever it reads off of? If there is a chipped tooth or something that could screw it all up. If it's a cheap part, may be worth getting just to eliminate another "possibility" :beers:

[hotrod]

figured it out! Dirty maf sensor took it off strayed some cleaner on it and it runs amazing pulls thru all the gears like it should now i can start playin with it i think i need some 31s :-) haha

[itbrokeagain]

I had an 86 hardbody that was a piece of crap. I wish I had never gotten rid of that truck. Had 35s with no lift. Lots and lots and lots of trimming

[hotrod]

I had an 86 hardbody that was a piece of crap. I wish I had never gotten rid of that truck. Had 35s with no lift. Lots and lots and lots of trimming

35s and no lift?!?! haha thats crazy your right, lots and lots of trimming haha