obd1 code 24 and 27, one thing after another... Options

[cwong]

Well seems like I fix one thing and then I get another.

So from what I have research. Code 24 is "Intake Air Temperature Sensor signal" and code 27 "Sub Oxygen Sensor signal"

Looking thru the forum don't see much just on these two codes. First code 24 seems like it's a vacuum leak? Or is there an actual sensor? Like that one that goes in the intake box or cai.

Code 27 no idea what a sub o2 sensor signal is.....

[VavAlephVav]

air intake sensor is the one that plugs into the air filter box. and a Sub-Oxygen sensor must be the second oxygen sensor in the exhaust. is that a Cali emission car? otherwise it must be the only O2 sensor that's in the exhaust right after the manifold.

This post has been edited by VavAlephVav: May 30, 2014 - 12:45 PM

[Smaay]

yeah check the wiring for the sensor that plugs into the airbox through a rubber grommant.

[cwong]

Ya I saw the o2 sensor wire had been cut.

I have a short site intake and the hole for the wire rubs against the side of the reservoir for one of the mastercylinders? There's a cut in the wire but do I really need the sensor

[VavAlephVav]

the computer uses the entering air temp sensor and the O2 sensor to adjust the air/fuel mix, so you need them in order for it to work right.

I have this universal O2 sensor where it looks like they rigged the wire but that's the way you wire it past the stock plug in.