What are the a/f ratios of a KA

Information on the naturally-aspirated KA24E and KA24DE engines.
tvmendoza
Posts: 250
Joined: Tue May 17, 2005 4:06 pm
Car: 240sx 95

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Hello i just bought a A/f gauge and i want to know what should be the common ratios on the ka24de. My car is a 95 240sx. Also which cable is the signal or where should i plug the gauge. Thanks


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SSS
Posts: 335
Joined: Wed Jan 01, 2003 1:45 pm

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You wasted your money if you bought a narrow band "dancing lights" type of AF gauge. They won't tell you ****.

tvmendoza
Posts: 250
Joined: Tue May 17, 2005 4:06 pm
Car: 240sx 95

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That is exactly what i got, hahahah but i still want to know what are the a/f on the ka24de to make a comparison, and which cable is the signal cable of the o2 sensor.

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deviousKA
Posts: 1355
Joined: Tue Aug 12, 2003 5:04 pm
Car: 90 240sx NA /72 Datsun 510 NA /86 corolla GTS NA
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Stock ka fueling is generally rich at the higher loads and higher rpm.

Going to be difficult to decipher much from a narrow band o2 sensor. Its going to look something like

lean lean rich lean rich rich lean rich lean lean rich lean, but hey maybe you will impress some chicks with the disco light effect.

I dont know much about these type of gauges, I assume they tap right into the 0-1v signal from the narrow band o2. If your 240 has a single wire o2 sensor, it would tap into that wire. If your o2 is multiple wire, you will have to find out which is the 0-1v signal wire back to the ecu (I forget which one is).


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