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View Full Version : How to adjust the Air/Fuel Ratio?

AllenRPS13
10-03-2005, 01:21 AM
I searched, but cannot find much... my car is running lean now, are there any ways to make it run more rich? Adjust the ignition timing maybe? Any help will be appreciate, thanks!
blu808
10-03-2005, 04:28 AM
It depends, if its a stock tuned motor make sure your fuel filter isnt clogged or dirty, make sure your fuel system isnt loosing psi, and mostly make sure there is no leaks on the intake after the maf.
ledzeppelin240
10-03-2005, 06:48 PM
Clogged injectors, vacuum leak. How do you know it is running lean??? Something is wrong with your engine, otherwise the ECM automatically adjust the A/F ratio to to best meet emissions, have power and fuel economy.
AllenRPS13
10-03-2005, 11:15 PM
because I got a A/F Ratio Gauge, but just dunno if it's accurate... it says "lean"
s13speeddrft
10-03-2005, 11:29 PM
If it's not a wideband it most deifinitely isn't accurate
Silverbullet
10-04-2005, 01:18 AM
it means nothing if you dont have a wide band o2... its just a light show. Take out your spark plugs. If they are running lean, you can tell by them being too hot and disfiguring.
vltnolia
10-04-2005, 09:34 PM
14.7.1 is ideal air/fuel ratio