20 Most Recent 1992 Nissan 300ZX - Page 9 Questions & Answers

low on freon. probably has leak

No, no specific problem-well, maybe a bad MAF. Buy a can of MAF sensor cleaner from Walmart or parts stores, or any sensor-safe cleaner, and try cleaning it. If that doesn't help, try a sensor form a salvage yard.

check all the hoses for possible wear, replace if necessary!

hi there this website may help you http://www.300zx-twinturbo.com/cgi-bin/manual.cgi

Hello
Could you please tell me exactly what the problem is that you have, I assume you have a car that that is not running well, this can be caused by literally dozens of different problem, so the symptom of the problem is the key information to figure out what the problem may be. The problems can be electronic in nature (all modern engines are computer controlled) or it can be a wide range of purely mechanical problems or a combination of the two factors. If you wish to understand how an internal combustion engine works please watch the YouTube video at the provided link. The principal is the same no matter how many cylinders or how the fuel is delivered to the engine.

http://www.youtube.com/watch?v=_y6PS-2j2Ug

Hello and welcome to FixYa!
I suspect that the injector's o ring is worn out or damaged. I suggest that you get to the injector's o rings first before going to other technical possibilities.
Hope this helps and thank you for using FixYa! Have a good one!

Check out this link. You will find it.

http://www.nicoclub.com/FSM/300zx/

fuseable link beside batter fit new one

there is the maf for your car its located on the top of the motor like in the picture




and here is a link for a step by step removal of the main computer

http://www.newtiburon.com/forums/showthread.php?t=183878

Hello Brian,

It was a pleasure talking with you on the phone,

I feel sorry for your problem, especially living in Florida, where it is hot and miserable with out your A/C working. You described your problem in great detail, and that made it little easier to diagnose possible solution to your problem. As you said you bought a new switch from a junk yard (U-Pull it) and it made no difference. You described your problem as you would start you car, turn on your A/C and you could hear the compressor coming on, and then you would turn your switch to low or high and it would work it seemed ok, then after a short time, it would shut off and at one time it even blew a puff of white smoke out the vent. That could be form a wire burnt or even a puff of freon. After talking with you for sometime on the phone, it came down to my conclusion is a couple things. I believe either the switch that controls your thermostat/relay is not functioning proper. I would first check in possibly replacing the relay or thermostat switch. I believe it works when cool, and as soon as it gets warmed up, it automatically shuts off. Next and final step, which we cross our fingers that it is not, is the compressor it self is getting hot and shutting off the whole system. A lot of times the compressor can run, but not work properly, and when it gets hot or warn out bushing/barrings etc,,, it will shut down, until it cools. But first step is to check your electrical system, and i believe this is going to be the thermostat or relay that feeds the compressor. You said you have your own owners service manual which is good news, and you can see how it is routed and try and do what you can yourself, but might have to pay that price to have a shop test it with there multimeter and put system under load or pressure, to see why it is shutting down. Sense you had a white puff of smoke come through vent, this could be a electrical short, so you want to be careful to solve this soon, so there is no fire hazard. I hope this helps you some to steer you in the right area to solve this problem. Thanks Mike from fixya

• Your MAF sensor is malfunctioning. You can try to unplug it and clean the contacts and plug it back in and see if that works. If not simply replace the MAF sensor. This is what causes limp mode in Nissan's.
• You will probably have a P1102 code which will tell you "Traction Control Solenoid" which amounts to your MAF sensor is in range but lower than expected. Your vehicle is probably bogging out at RPM's that it normally functions fine at.
• After you clean the contacts make sure to have Auto Zone reset the code for you. If your car goes into limp mode again just throw in a new MAF sensor and again have the computer reset at Auto zone (free).

• Hope this helps and thank you for using FixYa.

Regards, Tony

Well is the check engine light on or have you tested for codes yet? and it sounds like it could be a sensor issue, and if you didnt replace the distributor and cap and rotor that could be an issue also