injector replacement

[mesallem]

hey guys...quick ?...im going to the junkyard to get some injectors for my 92 q45 and i have a quick question. Is there any other nissan or infiniti that uses the same injectors as my q? that way if i cant find a q i can just pull them from a different car. thanks

[cccpman]

Well I don't think any other cars are using the same injectors (90-96 Q45's I think, I am by far no expert however), call the junkyard ahead of time to find out. If you have to remove the parts yourself (In this case that could be good but normally it sucks) then your going to need your toolbox (10 and 12mm sockets - 3/8th inch driver or larger else you will break two adapters like I did, a couple extensions like a 6" and a 3",6mm allen wrench, box cutter or shear to cut hoses/wires as they dont care about them, hell a bolt cutter to just take the fuel rail with you would be nice too and a good set of pliers or a vice grip). Not sure if you have been under the plenum before or not, whatever the case just remove the plenum and they sit right on top of the lower intake manifolds

Be sure to ohm those injectors beforehand, the wiring harness labels them so its easy to figure out which ones work and don't. It is advisable to remove your own plenum and such before hand (carefully, using q45.org's resource). If the Q you find is not in bad condition you might be able to get some hoses that you are going to break off on yours, if not your going to end up buying a few or more (don't improvise, its OEM or it will leak/crimp)

While you are at it check the knock sensors, its best to do it all in one shebang (im sure you did this already though if you know the FI are bad)

Also, you might want to clean those bad boys off before you install them in your Q, I used carb and choke cleaner and it was fine but ask around to see whats safe beforehand as I cant guarantee. When the new ones are in, your going to want to run some BG44K through your system as the junked Q's injectors have been sitting and who knows what kind of crap has built up in them over the many years

good lucky buddy

editoh yea, dont make my mistake. Get some new OEM gaskets, if you can wait order it from joe, if not the dealer will charge you an arm and a leg around 60-80 for the 8 of them
Modified by cccpman at 3:47 AM 9/1/2007

[Q45tech]

Rare 300zx twin turbo in 90-93 and 94-96 groups are suitable

JDM SR20 Turbo [4]

Few other JDM turbo and flat 6 applications

[Q451990]

94-96 groups are suitable

I believe the 94-96 G50 uses a different connector - so you will need to replace all 8 plus the subharness, or splice and dice two harnesses. Seems like there's another fitment issue too... Texasoil posted something about this earlier in the year.

Heath