installing an a/f meter in my 325is

[JAM]

are these o2 sensors heated or non-heated?

is this a hard job? thanks

[backtrail69]

You really need a WB02 if you want any real numbers. Inovate and AEM make some nice kits. I think when I installed my Inovate LC-1 there was like 3-4 wires max.

[JAM]

ya well i picked up a NBo2 for $20, so im putting this in.

no numbers but it tells me if im rich or lean :gotme:

[AndrewBird]

It is only accurate though at WOT, hence the point of it being useless.

[Garageaholic]

Not necessarily

I have a NBo2 sensor with a LED gauge mounted on my A-pillar.

It's useless in that you dont' know the exact AFR number you're running. It does tell you if your 02 sensor is working correctly and that it is properly constantly correcting. It will tell you when you are really lean or really rich.

Andrew is right in that it is only really that useful at WOT because all the lights turn green and tells you you're running rich. but I personally think it's useful as an "engine working properly and is efficient" tool. but that's just me.

no, you don't need to have it heated or whatever. doesn't matter, just takes longer to start giving accurate readings, that's all.

[JAM]

thanks. the car isnt boosted, its running on the stock ecu and i just put in 19 lb injectors and an m30 afm and i just want to make sure im not running to rich or lean.

[Garageaholic]

Just don't use it as a tuning tool. a WBo2 should be used for that. Use it as a guide for engine efficiency, that's all i'm saying.