anybody got pics of the injector tips from the z33(fbjc100)? i feel like i got the wrong injectors and just want to be sure they are right. did the injector swap from my fbjc101 to the fbjc100 on monday and my WOT ratio went from 13.6:1 before to 17:1 after . not sure WTF's up, but that shouldnt happen. i put a bunch of injector cleaner in the tank even though i let the tips soak in some before i put them in, hopefully from the tank will clean them out. either theyre dirty or my old ones were on crack working big time overtime. i cant understand this

 

i had a look around on my350z.com but couldnt come up with any photos. maybe the reverse would work by putting a photo of what you got on their forum ?

 

yeah, worth a try. i didnt get any pics cause i figured they were right. guess i could make a pic though.

 

heres a crappy paint rendition i made, i think it gets the point across




ceasers you had some DE-k injectors with that de-k i assume, did they look anything like the FBJC100 i just drew up?

 

I have some DE-K injectors in my garage and will try to get some pictures later this evening. Unless of course someone else beats me to that.

 

Mine were black w/ an orange 'ring' on them. Compared to my A33B units (which had the P/N clearly engraved) they only had a Bosch P/N on them, and they looked different (color scheme). I too thought maybe they weren't the correct pieces. But after some driving around with them, I noticed my MPG readout went a little higher. This tells me that when in closed loop, the ECU had to compensate a little more due to the slightly larger flow, which then made the trip computer think it was getting better MPG due to the slightly larger amount of fuel being taken out.

If you're going that lean, the car should run semi crappy. Also, make sure all the injector's seated properly.

How do yours look, and do they have a P/N on them (Bosch or other wise)?

If it's a Bosch #, PM Bewstaddict, he'll have info for you.

 

yeah, i did a WOT and it took FOREVER, not to mention i could tell the car wa pulling tons of timing

how do you know if theyre in properly? i clipped them into the fuel rail first and then pushed each one into the fuel rail and bolted it down...not sure if that could go wrong. guess ill try again.

they have a purple body and clearly say FBJC100 on the side...


Its weird because when i first tested it i had to take out 1 pt of fuel, which i was concerned with but no biggie. i tried a different intake, which i didnt like, and when i went back i had to add 7 pts of fuel. ill try pushing them into their further and make sure all the plugs are surely in. i can feel most of em ticking but ill check again.

 

thanks, i mostly only need the tip pattern since the body is certainly right. i just thought it was weird that the lower flowing injectors have a much better (looking) spray pattern than the higher flow ones.

 

das, yeah thats it. i totally missed the connection with the Z33 injectors and the DE-K. i just took some photos as well. will post them up, but yours look right on for the fbjc100.

 

should have used a flash but in the last photo you can see its a match !

 

FBJC100 Nissan Maxima VQ30DE-K A33 Injectors

 

hmm, guess ill just have to make sure all is connected and that theyre clean. thanks. mine are purple, so i would guess that means they really are from the g35 they were supposed to be from. guess ill let you know if i figure it out

 

that sounds cool ! lets swap so i can claim i have g35 injectors rather than de-k. lol !

 

lol. im starting to get the feeling nobody would want these. at least not until theyre cleaned out.

 

these two in the photos were clogged and i just replaced them.

 

Jesus, I don’t know I got, mine looked nothing like that. :

 

DE-K lower intake manifold and fuel rail

 

how were yours different? do you mean spray pattern or body design?

 

i will go have a look to see if i have more. i have some off a NZ spec A33 and a few off a US spec A33, in photo I believe those are NZ spec.

 

Mine are only different by color. Mine have an orange ring on the lower shoulder and do not have any FBJC# on 'em.

 

damn, injectors galore. im going to give this a week of driving with constant injector cleaner, then let reset the ECU while im gone over the weekend. if its still doing this BS lean thing, i think ill put the old injectors back in and send these somwhere to get them cleaned and possibly worked to a higher flow rate. hoping that after the week and reset i wont have to go through any more

 

you said you got the equivalent part # though right? aka it was a bosch z33 injector? its possible and likely that the stocks were replaced with those for some reason

edit: mine are also a diff color, purple...

 

If you have access to a sonic bath, clean them that way. This does require removal and reinstallation though. Sonicate 'em.

 

i dont know WTF a sonic bath even is. only thing i can think of is a machine used for rapid prototyping...

the reset is beginning, will be plugged back in tuesday and hopefully all will be good