I ended up getting a set of 90* from Walmart, their marketplace still allows them to be sold.

@Positron @lakai5 why'd you guys get 90* and spacers? What's the point of the spacers?

 

My car is running Loi tune. Been so for over a year now. The VF Tuner software doesnt have DTC code block yet but that hasnt bothered me. I have used o2 spacers on my Civic Si and Evo IX cars before.

Video of my o2 spacers here,

 

I understand the point of 02 spacers, but why are you running two of them combined (90* and spacer)?

 

Oh my bad. Running the 90* spacer and straight spacer together will further limit the amount of exhaust gasses reaching the o2 sensor.

I initially tried running the 90* spacer by itself and the 420/430 codes triggered right away. At least that is what happened on my car.

 

Gotcha. Did you add an O2 wiring extender when you added the spacer? My O2 wiring is about maxed out with just the 90*.

 

Without the spacer the 02 sensor would bottom out and hit the elbow

 

I added the downstream o2 extended harness just a couple weeks ago.

 

I've heard VF Tuner now allows DTC control for unwanted codes, can anyone confirm?

 

Have you tried an RC circuit (low pass filter)

It can be done on the inside of the car under the carpet for a few dollars.


https://en.wikipedia.org/wiki/RC_circuit

 

DTC lockout is now available from VF. Loi sent a updated tune yesterday. Ive only put about 20 miles. Nothing yet. I did install defoulers before though.

 

That's good to hear! Been waiting for that update to come through from VF