PLX 300 wideband question....

[emotionisdead]

i have a wideband plx300 and i was wondering if the only thing you have to do to get acurate afr readings on the hondalogger is two replace the input wire on the ecu with the narrow band output wire on the plx. any help would be awesome. thanks.

[CivicVTi]

To get accurate readings you have to use the wideband output directly to the ECU input. The ECU must have been set to open loop first. WHen you finish tuning, you must use the narrowband output to the ECU, set the ECU to closed loop and check the AF ratio from the PLX display only, unless you plan to stay open loop.

[tboostdsi]

hey there, i was reading your post and i wanted to know if you could help me with the installation on the plxm 300, i have a obd2b p28ecu and i need to know what the color wire is (o2input signal wire)on the wiring harness.the ( white) 02 output signal from the plx device is suppose to hook up to that wire. also, do you know where to hook up the gray wire from the plx m300?thanks, i am a newbie

[CivicVTi]

Check PLX's website. It has detailed instructions.

[tboostdsi]

hey guys, still need help, i figured out how to connect the plx but here is what my car is still doing. I start it up, it runs for about 10 seconds then i here a click down by my ecu and the car dies.....start agian, and same thing happens over and over.Also, when this happens, my plx device goes crazy, the number act like they are resetting on the digital display. I do need a little help so if EMOTIONISDEAD, can you email me AT tommy1434@aol.com and help me alittle bit since you have installed one already. thanks
I have a 00 si b16a2 8lb jrsc hondata p28obd2b w/ s200 system, trying to install plx wideband m300.THANKS FROM THE NEWBIE!!!