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Forum nameTurbo/Nitrous Tech
Topic subjecthow to adj your fuel if you dont have a S-AFC ???
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=20268
20268, how to adj your fuel if you dont have a S-AFC ???
Posted by proDMD, Apr-22-02 05:34 AM
so if you running to rich or lean on your A/F guage how would you adjust the fuel? and if you did have a super AFC would you still need a A/F guage?
20269, RE: how to adj your fuel if you dont have a S-AFC ???
Posted by Corbin, Apr-22-02 05:57 AM
Adjust your fuel pressure. Fuel flow from an injector is based partially on the fuel pressure behind it.

If you had an S-AFC, I would still get an A/F. It is a pain to read O2 volts with S-AFC and tune at the same time (flipping from screen to screen). Plus, we don't know if the S-AFC has a high enough resistance across its input leads to properly read voltage. It needs to be essentially infinite. Otherwise, it won't read correctly.

Corbin

'95 ESI-T
HRC+FMIC+ETC...



Gimme fuel...Gimme fire...Gimme that which I desire
20270, RE: how to adj your fuel if you dont have a S-AFC ???
Posted by VX100, Apr-22-02 06:11 AM
An air/fuel gauge and/or some form of datalogging would be essential for properly tuning your car, especially when you're pushing some extra boost in it.

The gauge is good in letting you know as you are driving if you're runnig too lean, but sometimes logging the data is the only way to really fine tune your air/fuel ratio for proper tuning.