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Sage One
Posts: 4
Joined: Wed May 29, 2019 11:01 am
Car: 1995 Infiniti Q45


Postby Sage One » Tue Jun 04, 2019 10:10 am

Hello everyone! Thank you so much for having me here. Im new here and just wanted to get some info on injectors for my 1995 q45.

Which injectors do you guys recommend. Im not concerned about the price as much as i am about quality. Which ones are the best i could get for my q45? Because ive seen black ones.purple im kinda confused about it . if anyone could help i would be eternally grateful👍✊🙏🙏🙏- Ivan

Posts: 109
Joined: Fri Jul 19, 2013 6:11 pm
Car: 1994 Q45 Silver/Grey
Location: Pacific NW Summer - PHX winter


Postby dnudelman » Tue Jun 04, 2019 1:01 pm

I've been using STANDARD MOTOR PRODUCTS FJ284 for over 5 years on my 94.
Some advice:
1. Injectors can't be rebuilt, don't bother.
2. while you're at it, replace knock sensors and knock sensor wiring harness. You might find a good deal on genuine Nissan on ebay.
3. Replace all fuel line with Nissan fuel line and injection hose clamps (see other threads)
4. Good time to replace spark plugs and valve cover gaskets.
5. Check the under plenum hoses, see discussion thread on this topic.

3Q Jay
Posts: 2193
Joined: Sat May 08, 2004 6:23 pm
Car: 94Q45a, 95Q45a (mine)
97Q45t (sold)
01 B15 Sentra (Daughter's)
2010 A6 Avant (also mine)
Location: Florida Coast


Postby 3Q Jay » Wed Jun 05, 2019 6:05 am

The current Nissan part number for replacement is 16600-67u10. they have a purple top. Whatever you get, don't forget that there are 2 o-rings for each injector--those p/n are 16618-53j00 and 16618-10v05.
agree with other points from dnudelman.
My '95 still has all 8 factory tan tops at 1528xx miles.
The '94 has all 8 -67u10 replacements. 3 of those were done at infiniti just before I bought it, I replaced the other 5 pre-emptively 12 years ago, so those are at about 50k miles all on E10, no issues.

User avatar
Posts: 22606
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Q45, 1995 Q45t, 2000 Q45


Postby maxnix » Sun Jul 21, 2019 2:10 pm

Oh, as a hint, check rail assemblies with new injectors before installing. One of the cleaning vendors here I trusted did not and destroyed my engine.

I recommend fuel injection cleaning by:

Mr Injector / Bill Johnson
6280 North Government Way Unit 4
Dalton Gardens Idaho 83815

They do pressure test the rail assembly after the clean injectors are mounted.

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