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View Full Version : s14 ka24de bogs out, can't pass 2k rpms


mowgli 240sx
08-10-2012, 01:11 AM
i have a 5 speed 1995 240sx with obd1 ka, and it bogs out at 2k rpms.

Turns right on first click of the key and just recently did a tune up (spark plugs,wires, cap/rotor, and oil).

It started bogging last week until i unplugged the battery and plugged it back in and it ran perfect for a week.

now it dies out when in first or reverse gear and cannot rev past 2k.
also has a rough idle at some points.

i will be changing the o2 sensor next and hopfully that solves it.

but if not, does anyone have anything in mind what the problem can be? could it be the maf sensor?

any input would help because need to get this back on the streets as it is my only car.

p.s. yes i looked and searched google, but i am looking for other peoples input. so if you are here just to shit-talk, gtfo

mowgli 240sx
08-10-2012, 08:37 AM
anyone know what the problem can be??

SuperBlackS14
08-10-2012, 09:03 AM
Any Check Engine Lights? Curl up with your FSM and a Code Reader, or since it's an OBD-I, set it to the mode for checking.

highlifein909
08-10-2012, 10:04 AM
maybe maf? is it misfiring? can be injectors they went bad on my s14 kade

Edwin562
08-10-2012, 10:22 AM
if motor cant rev past 3k, its a MAF issue. Make sure there is not wires exposed or anything disconnected.

mowgli 240sx
08-10-2012, 10:37 AM
Any Check Engine Lights? Curl up with your FSM and a Code Reader, or since it's an OBD-I, set it to the mode for checking.

my cel has always been on, previous owner said wiring issue, but car ran fine for over a year of dailying it, but i will look into it.

maybe maf? is it misfiring? can be injectors they went bad on my s14 kade

very small and light misfire not very noticable, wasnt injectors making it bog i got those checked off already.

if motor cant rev past 3k, its a MAF issue. Make sure there is not wires exposed or anything disconnected.

working on maf and o2 sensor today. o2 was black so going to change it today, then look into my maf sensor

iamtheyi
08-10-2012, 11:18 AM
It's almost definitely the maf. Get a known good MAF and try it.

mowgli 240sx
08-10-2012, 11:21 AM
It's almost definitely the maf. Get a known good MAF and try it.

planning to today

do you have a good one for sale? ha

or if anyone in or around upland/montclair hmu if you have a good maf for a 95 s14, willing to pick up with cash if it is definatly my maf messing up my car.

text only 951-990-0800 (plz dont be ridiculious on prices, i have gotten some pretty rediculious prices on mafs before, be reasonable and honest about condition)

SuperBlackS14
08-10-2012, 12:40 PM
I may have one, I'm not 100% sure,
http://i80.photobucket.com/albums/j199/phantomgett/20120426_224326.jpg
That ^^ what you're talking about? Or wrong part number?

Also, those wiring issues/CEL may be a good idea to clear up/troubleshoot...

EDIT: Sorry didn't read hard enough, I had that, but I'm across the country. My b.

mowgli 240sx
08-10-2012, 02:22 PM
^^^ i think thats a diferent maf (maybe for a s13)
top of the s14 mafs are smooth with nothing engraved on top of it.

thank you though

SuperBlackS14
08-10-2012, 02:42 PM
Well I posted that one so you could check the part number. I had one with my swap and sold it, bought this one as a replacement to sell, found the original, kept this. It was marketed as an S14 SR MAF, but I was nieve and never checked.

Edit: swiggety swag... http://www.240sxmotoring.com/partnumbers.html

Looks like it's a Kouki S14 SR MAF...

mowgli 240sx
08-10-2012, 03:05 PM
^^^ fer sure, looked similar to a s13 one my bad dude hah