Nistune Forums

I ended up doing a boost leak test and found all 4 runners of my mazworx sr20ve manifold are split and pulling in heaps of extra air. I think at high vacuum at idle it's just running so lean that it's beyond the o2 sensor's scope and it doesn't attempt to correct. Possible? Still doesn't explain my ...

I've been using my aem uego to simulate the o2 sensor for about a year now, but lately it's suddenly stopped controlling the mixture at idle. It sits at 0.35 volts +-0.02 which means I'm stuck on an afr of 18+. O2 control works perfectly when I'm driving and will cycle between 14.9 and 15.3. Is ther...

Is the s15 code as simple as the s13/14 code or does it need to be rewritten?

Will flex fuel be locked to the zietronix sensor or will it be usable (with calibration curves like afm) with cheaper sensors such as the GM one?