Well...

I wanted to put in an Air/Fuel Ratio Gauge to show if my engine is running lean or not. The Question is, DOes the 350Z have an oxygen sensor? Either way do I still need to buy a wiring kit or not?

 

Let me restate the question...

Does the 350Z come with an Oxygen Sensor?

 

all obd-2 cars come with oxygen sensors, including the Z. where are you planning on putting the gage?

 

GReddy makes a gauge pod that I can buy for $20 that mounts on the A-Pillar. Or I was also thinking of a mounting cup to stick in the corner where the windshield meets the dash on the driver side so it's hidden from other people's view. I still don't know. Which do you reccomend.

 

If you plan on using the stock O2 as a tuning tool, it's rather useless. It will show the O2 is working by the lights going up and down, but an OBD2 car will give you a SES light if one fails.

Only way to tune a turbo car is on a dyno with a wideband O2. The stock narrowband O2 is not accurate enough except at 14.7 A/F and you want to be around 11.5'ish for max power.

I would save the money and spend it on a different mod.

 

What if I was to buy an Apexi S-AVCII?

 

Sorry it's been a couple of years since I had an import, even then I did away with the stock computer and went with a F.A.S.T DFI setup in my '92 MR2 Turbo. So I am not up on that black box.

If it uses the stock O2 to take it's reading then it's not accurate enough to do tuning with. No matter how great the read out is, if the sensor is off then the readings will be off.

Do you have a link to the Apexi unit? The Z is the wife's car and if there are some good tuning devices out there I am all for it.

I currently have a 1999 Formula with a ATI D1SC Procharger on it(tuning with LS1 Edit on the stock PCM) so I need to learn more about what is out there for tuning the Z.

 

Anyways, I have another quesiton about gauges. I am going to put in a Twin Turbo. What gauges are important too have besides Boost and EGT?

 

The best gaugel you're ever going to have for a modded car is a wideband O2. I paid $390 for mine and once I get it installed and running properly, I'll post information and a review on it.

 

www.apexi.com

 

What else, I am thinking of buying GReddy's Boost and EGT Peak/Hold Gauges. A wideband O2 is really expensive. Is oil temp important or not. It was important in my T-78 single turbo supra but how about with the Z? Should I just let the car cool off for about five minutes before turning it off and not get a gauge?