Always good to remove R136 and R138?

[JDM_Ego]

Title basically says it all. I have an S300 and will be running a B20V. I run a wideband and I have power from the fuse box and ground against the chassis and want to wire signal into D14 or D10 but my resistors aren’t cut. I don’t have a problem cutting them but as of now I haven’t run into an issue where D14 won’t work so not sure if I should see how D14 works first or jump right to cutting. What exactly am I losing by cutting those resistors?

[JDM_Ego]

QUICK UPDATE: I just realized I failed to mention and take into acccount it’s an OBD2A harness out of a 96-98 civic and I use a jumper to plug into my p28 S300. So basically, should I go right to cutting the resistors and going into the ELD pin (I believe D16 on my harness) or try the primary O2 sensor pin (D7)?

[TTR]

You need to remove them if you want the full 0-5v input. If you dont it will limit the high and low v. If your wideband is 10 A/F at 0 v and 20 at 5v it would limit it to only being able to read from 12.5-16 A/F. Using D14 will do the same thing. Using D10 gives you a full 0-5v.

[JDM_Ego]

If that’s the case I might just cut them and use D10 from the start. Would you happen to know what those traitors are for exactly? Like what am I technically losing by cutting those?

[Spunkster]

You are not loosing anything. It just allows D10 to see the full voltage range. You should not use D14.

[JDM_Ego]

Copy ill just go with that then. Thanks guys

[JDM_Ego]

Actually I do have one more question. Since I’m OBD2A with an obd1 jumper harness it looks like I go into D16 on my harness. Am I removing the existing pin and only running my wideband to it or am I splicing my wideband wire into the existing d16 wire and having both go to D16 pin?

[Spunkster]

The wire cannot be connected to the original location. Only the wideband input can be connected.

[JDM_Ego]

Awesome, I already NBC it the resistors this morning and tomorrow I’ll depin ELD and put the wideband in that spot. Thanks for all your help 🤙