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Thread: Noob Question- B13 vs B14 Injectors?

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Posts: 1-9 of 9
2014-01-27 20:24:36
#1
Noob Question- B13 vs B14 Injectors?
I've done some searches but haven't found the answer I'm looking for-

Are b13 highport injectors interchangeable with b14 lowport injectors? Flow rate is the same correct- 259cc? It would make sense that you should be able to swap them back and forth correct? or is there a difference between the OBDI vs OBDII fuel injectors?

Thanks for the knowledge!
2014-01-27 20:25:19
#2
They are all red-top which are 259cc, thus interchangeable.
2014-01-27 20:57:02
#3
91-99 sr20 injectors are the same.
2014-01-27 21:01:14
#4
Yep, that are all the same flow, plug type, and side-feed. They are likely the same Nissan part number.
2014-01-27 21:14:42
#5
For some reason there are two different part numbers listed, that's what sparked my question. That and most of my experience is with B13's, just bought my first B14 last week and working on getting it running properly.

Thanks for all the quick replies!
2014-01-28 10:40:48
#6
Originally Posted by James_se-r
For some reason there are two different part numbers listed, that's what sparked my question. That and most of my experience is with B13's, just bought my first B14 last week and working on getting it running properly.

Thanks for all the quick replies!


If you are trying to get it to run properly, injectors on these cars don't usually fail. The culprit might be something else, care to elaborate on the problem?
2014-01-29 19:12:06
#7
It would start but was running like crap with no power- missing on two cylinders #2,3

Since I had just bought the car a week ago I just assumed it had a spun bearing and that I would be doing a motor swap but did a compression test- 160psi, 180psi, 140psi, 160psi

Took it to my brothers shop and they pulled they replaced the plugs in the car, the ones that were in it were gapped wrong and one didn't even match the other three.

Checked the injectors and it seemed that two of them were sticking- replaced all four injectors with some I had laying around off a jdm sr20 but then we had issues with the car missing on cylinders #1,4

I bought two brand new injectors and that seems to have fixed the problem for now- Im not sure what the previous owner did to make the injectors fail?
2014-01-30 16:31:17
#8
Originally Posted by James_se-r


...replaced the plugs in the car, the ones that were in it were gapped wrong and one didn't even match the other three.


...I bought two brand new injectors and that seems to have fixed the problem for now- Im not sure what the previous owner did to make the injectors fail?


Well, for him to pull something that silly, I bet anything could still be wrong.

Back to the injectors, is the fuel filter original? Really don't know why they failed, maybe bad gas+alot of stop and go? Mileage?
2014-03-05 07:16:53
#9
i wanted to chime in a threadjack a little bit. I own a 97 200sx se-r. I'm here because i suspect a bad injector, though it was said they usually don't go bad... i've replaced plugs, wires, dizzy cap and rotor, fuel filter, cleaned throttle, pcv etc with throttle body cleaner, ran sea foam in gas tank. i have a code for a cyldiner 1 misfire. when i pull out the car sputters and hesitated then accelerates, but not without "dead spots" in the rpm band. you can feel it as kind of a random miss, sometimes are worse than others, tho idle usually seems ok, doesn't dip often or stall, but at one point it did. this car has had the sputtering problem since we've owned it, pulled plugs and found oil so we changed the vc gasket with spark plug seals, was fine for a day or two then same issue. a year later to a month ago i started her up, went inside to get a couple things and she sounded like she was running on 2 cylinders, came back out the second time and shehad stalled. started her up, started up fine, started driving then she started losing power and died. so i restarted her and this cycle kept repeating til i made it around the block to switch out cars as i was running late for work. i judged fuel filter where she would always start up fine right after stalling out, so i did that. once again for about 2 days she ran perfect, then started missing again. got her scanned to find the cylinder 1 misfire so i changed the basics as stated above, none helped except the throttle body cleaning which again, 2 days then back to running like piss. i ordered an injector as i can't think of anything else it could be. yes i know egr valve is common and friends ave suggested fuel pump, but none of those would cause a miss just in cylinder 1. the only other things that i think could cause this would be something internal, but theres no smoke at all, which i would assume from piston rings allowing oil past or leaky headgasket or valve seal. also i could guess maybe there was something in the intake runner clogging the air to make it run too rich but i have trouble seeing that... the last symptom she has is when i start her up there is a gas smell and my friend behind me said it smelled like i was running rich as hell, but anytime after you can't smell gas at all, only at startup... any guesses besides injector? also is there a good diy thread (preferably with pictures) or a good guide for a low port injector change? ive never done that
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