make my Q go!

[202Q45]

I have decided to take over my dads 1993 q45 that has been sitting for about 2 years. First thing is that it still runs. But it idles a little ruff but smooths out. Fuel pump is humming and it does cut off at stop lights, sometimes. Just wondering what maintenance should be done in order to get this car back to top performance. Any after market parts to make this baby zoom?

[Q451990]

to NICO!

It sounds like you have a lot of rehab work to do before you start looking at mods. I'd start with the fuel pump, since you say it's humming. Probably injector issues for the rough idle, and cutting off at stoplights potentially sounds like a bad MAF (mass air flow) sensor connection or a bad sensor itself.

Once you get all of that done - the most effective mods would be the NICO ECU and adding the front and rear sway bars off of an Active Q. Not much aftermarket support for the old Q, and what was there has pretty much dried up at this point.

Good luck!

Heath

[lino]

Welcome to Nico

If you don't have a copy of the FSM (Factory Service Manual), you can download it from here:
http://www.nicoclub.com/FSM/Q45/1994_Q45/

Check out Wes' site for some addtional info:
http://www.q45.org/

Don't forget to take a look at the articles section:
http://www.nicoclub.com/infiniti-technical-articles#q45

[202Q45]

Hey thanks for the insight. I guess i really gotta roll my sleeves up on this one. My Q is a base model w/ no active suspension. I would like to stablize the car on turns as this thing runs on the highway. If i stop and let it idle it will cut off...sometimes. I think i will just start with the fuel pump and work my way to the engine. Any suggestion on spark plugs and things to look for while driving it? thanks in advanced.

[goody90q45]

Is the check engine light on? If so you should pull ECU codes. If no CEL it's likely just the fuel pump but the fuel pump controller could be having trouble also.

[202Q45]

Can anyone tell me what year and what 300zx brake, exhaust or anyother part will fit on my 93 Q. Looking to upgrade the brakes and "possibly" the rear end along with any suggestions I get. Just experimenting with whats proven...Thanks

[lino]

There are some suspension parts and brakes parts that will work. Not sure about exhaust.

If you do a search for 300zx or z32 you'll find a wealth of info.

Here are some links for brake upgrades to get you started:

Q45 (1st Gen) How To: Installing Z32 Brake Upgrade
http://www.nicoclub.com/archives/z32-br ... a-q45.html

300zx brake swap for Q45
post4670705.html

Z32 brake upgrade questions...
post4666636.htm

Will Z32 brakes work on Q45???
post3121000.html

Z32 Brake Upgrade on a G50
post5534721.html

check this: adapters for z32 + 350z rotors
post2676748.html

z32 - 300zx Brake Upgrade Conversion
post2175831.html

Brake Upgrade Options
post1637041.html

Oversized brakes 91Q45 Question...
post1573783.html

New Z32 Brakes rock!
new-z32-brakes-rock-t151946.html

z32 brake
z32-brake-upgrade-t148492.html