Air Fuel Setting

[boyzone]

hey guys,

wanna to ask about this , how can we adjust the air fuel setting to more lean to get better pick up and economy in stock 4G91 engine ?? pls advice.. Thanks :unsure:

 

[InitialD]

Originally posted by boyzone@Apr 10 2005, 16:57
hey guys,

wanna to ask about this , how can we adjust the air fuel setting to more lean to get better pick up and economy in stock 4G91 engine ?? pls advice.. Thanks https://www.zerotohundred.com/forums/style_emoticons/default/unsure.gif alt='unsure.gif' />

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Install Apexi S-AFC II

 

[boyzone]

how about just adjust air flow meter ??? I hear some people said it can be adjust right ??

 

[cipan_supercas]

piggyback such e-manage has the features on adjusting the air flow..

same goes with rechipping...

copied chip?no comment....:P

 

[soulfly]

adjustable fuel regulator plus an air-fuel ratio meter

 

[bujang_hensem]

the cheapest way for 4g91 is tu adjust the MAS screw out a bit...it can be 5% to 15% more lean because of undetect air....same method like micro compressor (but it mechanical wat to cheat) and the MAS are via electronic sensor.

 

[drexchan]

Originally posted by soulfly@Apr 12 2005, 09:21
adjustable fuel regulator plus an air-fuel ratio meter

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True, but depends on which type of ECU. Some ECUs are just not that easy to be cheated.

 

[boyzone]

adjust the MAS screw out a bit ?? which screw ?? will plan to get a safc to play ... but not now ...laa.

 

[soulseaker]

The MAS screw is at the Throttle Body. If you look closely, there is a screw with spring around it, but it depends on which model.

The screw is normally located at the top part of the Throttle body. All you need to do is to turn the srew a little bit. Then you can feel the different.

Happy trying.

 

[boyzone]

have picture ?? sorry ..maa, I still new in mitsubishi engine ...
screw out a bit ?? that mean is call loosen..laa ??

 

[boyzone]

I had look around my throttle, there are no screw with spring surrounding there... my engine is run with 494 air flow sensor .