fjo and 4b

SiRhc · Post by **SiRhc** » Sat Feb 21, 2004 8:55 pm

does anybody use fjo wide band o2 sensor and stage 4b? im looking for the correct voltage-airfuel values... please help thanks..

boosted hybrid · Post by **boosted hybrid** » Tue Feb 24, 2004 9:37 am

There you go.

95c1v1cs1 · Post by **95c1v1cs1** » Tue Feb 24, 2004 12:19 pm

To add to this, which wires are the gound and signal on the FJO Wideband unit?

There is: A Blue wire with a plug
A Green wire with a plug
and then a 4 wire plug with green, red, Blk, and White.

Thanks,
Corey

95c1v1cs1 · Post by **95c1v1cs1** » Tue Feb 24, 2004 2:27 pm

I just got off the phone with FJO.

There is a Square 4 wire plug connected to the FJO controller. There should be some Lettering on these connectors listed A,B,C,D. The colors coming out of the controller into the 4 wire plug are as follows(some of the FJO units have different wire colors so make sure you pay attention to the Lettering as well):

top of Plug:
AB
DC

Wire colors and Destination
A - Red - 02 Signal - connects to D14 in a OBD1 ECU
B - Green - Signal Ground - connects to D22 in a OBD1 ECU

C - White - connects to 12V Ignition
D - Blk - connects to Chassis Ground

If you are using a Dummy Honda plug from an old O2 sensor connect the letter A wire(red) to the White wire on the Honda Plug and the Letter B wire(Green) to the Green wire on the dummy plug.

There is more involved in getting your FJO to work in conjunction with your Hondata System but please refer to this article for the rest...

http://www.hondata.com/techwidebandtuning.html

Garrett · Post by **Garrett** » Thu Feb 26, 2004 12:02 am

hey i'm also using FJO on a 4B how are your values in the datalog? mine was far of from the LCD.. It just keeps showing leaner values. And it has an erratic voltage. Like when i turned the engine of and switched on. The voltage jumps +0.05vdc then back Hows your reading?