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Wideband O2 Sensor Vs Standard O2 Sensor Vs Afi Sensor Vs Ntk/ngk

brn_20B

By brn_20B,
in Engines & Forced Induction

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brn_20B Enthusiast

brn_20B

Posted
Posted

Hey guys my car is running rich so im taking steps to try to stop this, I am looking for a O2 sensor and im not sure what i should go for there are many online starting from $70 and then i read somewhere that im better off getting a wideband o2 sensor with a guage so i can view it myself also to know the A/F ratio, i may plan to put a power fc in my car R33 so I cant decide weather i should put in a wideband with Guage (AEM) link below, NTK or NGK, Bosche or Australian Fuel Injection.

Kind of confused

this is the wideband aem one im looking at

http://www.ebay.com.au/itm/AEM-30-4100-DIGITAL-WIDEBAND-UEGO-CONTROLLER-AIR-FUEL-RATIO-FULL-WARRANTY-/330682646907?_trksid=p4340.m8&_trkparms=algo%3DMW%26its%3DC%252BS%26itu%3DUCC%26otn%3D12%26ps%3D63%26clkid%3D1564762916054738581#shId

paulr33 Grand Master

paulr33

Posted
Posted

your car has a factory narrowband sensor

the stock ecu and PFC (and most ecu's) assume you have a stock narrow band sensor

you cant just remove it and install a wideband sensor and expect it to work

if you do install a wideband sensor as a narrow band replacement then you need to ensure the controller for the wideband sensor has narrowband output

this is usually a 0v to 1v output which the stock ECu will use and trick the stock ecu into thinking you have a narrowband 02 sensor

narrow is 0v to 1v

wide is 0v to 5v

a/f guages are useless on narrowband sensors and only meaningful on wideband sensors

stock ecu assumes (and pfc) narrowband and will only work on narrowband sensor (or fake narrowband input from wideband controller)

narrow band 02 ssensor should be $80

wideband 02 sensor form memory around $200

the stock narrowband sensor does die and it only has limited service life

from memory approx 100,000kms or so so yes, its a good idea to replace it

and you may yield some fuel economy as its the sole sensor responsible for fuel economy management

with a f**ked 02 narrow band sensor the stock ecu cant trim the fuel map on its own and its probably wasting fuel

note - dont confuse this with black smoke when you flog it on boost

when you flog it or floor it the stock 02 sensor is ignored and the ecu does all the work

the stock narrowband sensor is only used on light cruise / light throttle

when you open the throttle / floor it / on boost the ecu goes into "closed loop" and ignores the 02 sensor

paulr33 Grand Master

paulr33

Posted
Posted

from that auction page it wont work on the stock ecu (or PFC) because

All AEM digital gauges feature a 0-5v analog output for use with data loggers and virtually any engine management system, such as the AEM EMS or FIC.

the stock ecu and PFC only run 0v to 1v analog input

so you need an wideband 02 sensor / controller with analogue output

Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted

Get the Innovate LC-1 with DB Gauge, can be had from eBay US to your doorstep for under $180.

Supports BOTH wide & narrowband.

Disconnect your stock O2, splice in the narrowband channel to your ECU. Save the wideband channel when you start stuffing about with tuning.

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