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Gtir Motorsport club » Tech room » Help and Advice » Wideband AFR readings?

Wideband AFR readings?

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26 Re: Wideband AFR readings? on 11th October 2013, 6:33 pm

Hardy172cup

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the one star club
the one star club

27 Re: Wideband AFR readings? on 11th October 2013, 6:47 pm

weblizzer


thanks man... got a good info on it. just anothing thing, when logging afr do i need to max out from 1st to 4th gear? or what would be the best I can do on? sorry for being noob but i just starting to learn on atleast basic and understanding on how does really work.

28 Re: Wideband AFR readings? on 12th October 2013, 7:42 pm

weblizzer


Hello guys, just wondering I just install the afr and take for ride just observing on the afr...

since my o2 sensor is busted so I use the brown wire from innovate and connect it to the o2 pinout.

at idle i'm seeing 16.5 average.. then at first i seeing 12.5 at cruise like around 60kph... since i just install it seems the ecu is starting to learn.. around late night it started to go on 14.5 at crusing speed.

when I take a spin on WOT i got 10.4 @ .5 boost.. seems i got boost leak since even i try to adjust my manual boost it don't raise. would this be fine? it seems 10.4 is quite over fueling. so would it be more safe if i increase my boost?

thanks in advance Smile

29 Re: Wideband AFR readings? on 12th October 2013, 7:52 pm

nomad

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Admin
Admin
Id find the boost leak before proceeding any further .....

30 Re: Wideband AFR readings? on 12th October 2013, 9:22 pm

watoga

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ecu technician
ecu technician
@nomad wrote:Id find the boost leak before proceeding any further .....
Absolutely this. Find and fix the boost leak as this will play havoc with your MAF readings (and hence engine load and injector pulsewidth values). Once you fix that you can begin to tweek the maps.

Cheers,
Dave

http://star.pst.qub.ac.uk/~dbj

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