Nistune Forums

Posted: **Thu Sep 05, 2019 5:56 pm**

Hi

I'm having a weird problem with my oxygen sensor of my S14a sr20det.

Cold or hot engine, it Always has a value of 2.55 even when its unplugged.

Does the value normally need to be between 0 - 1?

What could be the problem?

Car runs perfect on idle, still on base map. (Original injectors and maf)

Greets from Belgium

Posted: **Fri Sep 06, 2019 10:23 pm**

Check your wiring. Check the O2 input line and see voltage. Dare say its shorted to 12V

Posted: **Fri Sep 06, 2019 10:48 pm**

Matt wrote: ↑Fri Sep 06, 2019 10:23 pm Check your wiring. Check the O2 input line and see voltage. Dare say its shorted to 12V

Ok thx Matt, will check the input line tomorrow

Does my fuel map look OK or?

It's an s14a sr20det , everything Original, except 3 inch exhaust and Apexi avcr @ 1.05 bar

greets

Posted: **Sun Sep 08, 2019 5:26 pm**

Looks smooth, but the AFR trace is what you need to really see

Posted: **Mon Sep 23, 2019 8:59 pm**

tested out de lambda with heating it, looked ok. 0-1v ..

But still wasn't sure, so i order a new one, problem solved

lambda is now 0.82-0.83

greets

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O² value to high

O² value to high

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Re: O² value to high