1995 240... obd1 or obd2?

General discussion forum about the 240sx, and a great place to introduce yourself to the board!
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hpmachine
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So is the 1995 240sx an obd1 or obd2 car? I've heard conflicting stories. Some say they are both??? I live in Jersey where they are super restrictive about modding obd2 cars. Like a turbo or an engine swap in an obd2 car... forget it. I might be interested in buying a '95 s14 but only if it's obd1. Thnks


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KFL
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95s obd1 by nj as in u have to pass the sniffer test if u go to a dmv for inspection no obd2 port hook up just on 96+. There is always around obd2 just have to know the right people and shell out extra cash.

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hpmachine
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Nice thanks for the info. You have a modded 96+?? Where do you get it inspected?

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hpmachine
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I know this is a little old but I'm bumping it anyway because I sold my s13 and I REALLY want an s14 now. I'm planning on doing an ls1 swap but I want to be ABSOLUTELY SURE that all 95 240's are obd1 before I jump on something. Anyone have more input?

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crazy240kid
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I think 94' was the last obd1 year but it might have been 95'. I know my 94' Integra (DD) was the last obd1 year. Hope you find your s14.

s14tan
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I do believe some of the s14s are obd 2 ( the ones made later in the last year.)

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hpmachine
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Ok I've been reading and searching for the last hour and I've come up with more conflicting info. The only positives I've seen so far are the obd2 cars have a service port by the hood latch, and they have a white ecu plug as opposed to a blue ecu plug for obd1. I also read something about the obd2 s14's having a charcoal canister by the throttle body, but I thought all stock 240's have a charcoal canister... I also read that you can tell which it is by checking build dates. Before June 95 was obd1 and after was obd2... can any one confirm this crap?

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Razi
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Did you sell your S13 cause it was staring at you?

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hpmachine
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lol I can't say it didn't factor in to the decision. Srsrly those projector lights made me feel weird. I guess if I buy another s13 with a slivia conversion, I'll do bricks.

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Razi
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Haha, your photoshop of Lord of the Rings + lights & intercooler had me laughing for a long time.Oh well, hopefully you'll find a good S14. Good Luck

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ThuG LyFe
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Car: 95 S14

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hmm,

i thought my car was always a OBD I b/c it was made in like 3/94 but now i'm not sure anymore. cause when i first bought my car, i remember the mechanic hooking up this computer to my driver side kick panel (i guess the fuse under there) and he read the codes out. does that mean my car is a OBD2? it's funny tho b/c the same store passed my inspection and they did the sniffer test.

so if my ecu cable is white i have a obd2? i'm pretty positive mine was white and not blue but i can't remember. i'll go check that.

but yea i do believe the later made 95's are obd2. so not all 95's are obdI but i think as long as it's a 95, they should just do the sniffer test. i think 95 was the last year of obd1's.

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hpmachine
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From what I have read, if he hooked up his diagnostic tool to the port by the kick panel, then you are obd1. I think the obd2 cars have the port by the hood latch. Just out of curiosity, do you still have the emissions sticker on the car? It should tell you on there if its obd1 or 2. The problem with that is, a lot of cars no longer have the sticker. Damn this is confusing.

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xweav32
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all s14's are obd 2. if you take to auto zone the can scan it. that alone proves it, but there is more. the car has o2 before and after the cat. its kind of confusing though. the 95's are kinda in between. they are 100% obd 2 compliant, but it doesnt have any EVAP. yet it passes emissions. its weird really.

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hpmachine
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So why have I seen emissions stickers on '95 s14's that say OBD1???

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xweav32
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i had one. idk its even confusing to me. it seems to be in between. my 95 was catless and it didnt throw a code, but it has two o2 sensors. the whole set up is really weird. its your best bet though. all 96 plus have all this gay Evap stuff. im runnin my 95 ecu in my 96 just to eliminate all that crap. ill have a write uo about the swap soon, soon as i get pics taken.

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edgartheace
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Like all vehicle built in 95 it all depends on the date of manufacture as to whether it is an obd1 or 2. best way to find out is to look for the obd 2 port. if it looks like this then it is obd2but if it looks like this then you are obd1hope this helps.

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The Inflicted
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My '95 is OBD1.There's a connection port under the glove compartment, kind of towards the driver's side of the dash.I've got a code reader and plug into it from time to time to cancel out the check engine light. (Apparently my neutral position switch is malfunctioning. Why this matters on a manual car I have no idea.)

Whenever I've taken my car in for emissions in Tennessee the just run the sniffer, and it's always passed with no trouble.

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xweav32
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exactly that ports is an ob2 port. my s14 was from the first batch in the use. i forget wat the man date is im to lazy to look.

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The Inflicted
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Oh really?I'll snap a pic of it as soon as it stops pouring rain.

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hpmachine
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xweav32 wrote:i had one. idk its even confusing to me. it seems to be in between. my 95 was catless and it didnt throw a code, but it has two o2 sensors. the whole set up is really weird. its your best bet though. all 96 plus have all this gay Evap stuff. im runnin my 95 ecu in my 96 just to eliminate all that crap. ill have a write uo about the swap soon, soon as i get pics taken.
Wait, what is my best bet?

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ThuG LyFe
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then i'm sure mine is obd1 then. cause it was def. hooked upto somewhere inside the kick panel and not hood latch. in fact, my ecu plug i think was actually blue as well haha.

and to the guy saying all s14's are obd2...i disagree, there is a cut off date on the date manufactured i believe. 96 and up is def. obd2 tho. so i guess the only way to tell if it's obd 1 is if it has the hook up switch in kick panel and blue ecu plug?

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hpmachine
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Do you still have your original emissions sticker? I'm interested to know what it says and what your build date is...

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xweav32
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like i said the 95 is all messed up. its like a transmission that hasnt completed the sex change. lol.

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xweav32
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yea ill go look. my camera is down, but ill look at the dates.

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ThuG LyFe
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i'll look tmr as well...never noticed anything on the em sticker tho...but i can almost guarantee my production date is 3/94.

destroyyourmind
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go to your local ghetto to have it inspected. if it doesn't pass slip an extra 10-15 dollars. almost everyone I know down here in NC does that hahah

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hpmachine
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Jersey sux

x3whlmotion240sx
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I have s14 that was made in 1994 and its obd2 ( its on passanger side ) i also have hook up in fuse box by the clutch pedal....but i don't think its for ecu? im not postive tho

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xweav32
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i bet you an invisible 1000 bucks you plug is located under the dash on the passenger side by the vents that feed air to your foot well. these are from my dads s14 production date 3/94. here is pics....






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hpmachine
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So would your dads car be considered an obd1 or 2?


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