http://www.rx7store.net/product_p/boschsensor.htm

has anybody used these? these are the cheappest i found. are these compatible with autometer guages?

thanx

 

you need a sensor and a control modual its going to be hard to get them bolth for under $300 and they will not work with the narrow band autometer gauges.

 

You can get LSU sensor 4 /4.2 for under 50 dollars.

 

ebay for a plx unit...should be under 300 before shipping...comes with everything u need

 

Anyone know the outputs/inputs on these sensors? Why isn't anyone building custom readers for these sensors? Is there any way to figure this all out with just a multimeter and a wideband sensor.?.?

 

well..its alittle tricky.....the input to these sensors are obviously the percentage of oxygen in the exhaust gas.....the output is 0-5 volt....however the sensor needs to be heated just the right amount to give accurate readings....place it in the stock 02 location and it'll burn out the sensor....so most recommends 18-24 inches from the engine/turbo.. then the sensor is heated in a seperate circuit... the output is obviously 0-5 volts....saying 2.5V= stoich but im not sure if u wanna be driving and doing math conversions consistantly....on top of that the sensor needs to be be calibrated each time at start up.....anyway....i looked into building my own WBO2 system....and after the PCB board cost, resistors, time and my own soldering skills...i think im just going to bit the bullet and spend 300 dollars....

ohh yeah.... there are part kits out there together read to be soldered...but its not much cheaper.....IIRC techedge has a kit for like 200ish..maybe more....then the sensor and display has to be fabbed seperately....so i've decided to go with the plx m300 with a built in lcd display....which includes a sensor(70)....sensor connector cable(20) and the unit for like 210....figure parts cost 150.....60 bucks for labor isnt that bad....

just my .02

 

if you dont want to replace your WB02 sensor every time you run a few tanks of race gas, avoid the Bosch/LSU/Volkswagen sensors. Get the Honda/NTK sensors. those will last YEARS and years with constant race gas usage. you pay more up front for it, but you dont have to buy several sensors and replace them over and over... plus the NTK is supposed to be more accurate... its the only sensor i would run with an AEM.