tarpon40

CEL came on last night, so I pulled the codes this am...
22, water temp sensor....prety self exlanatory
24, intake air temp? didn't think there was an intake temp sensor?
31, manifold/airflow meter

Any ideas?

waskillywabbit

iTrader: (-1)

Check the FSM.

:wabbit2:

ToyotaViejo

Here's a link to the codes:

http://www.4crawler.com/4x4/CheapTri...es/index.shtml

My initial theory? Dead vane air flow meter. There IS an intake temp sensor, but it is part of the VAFM, not serviceable, and not replaceable. When you get the airbox off, you'll see a little black sensor at the 12:00 position on the outboard opening of the intake forward of the vane itself.

NickB47

Ever get any resolution on this? I have the same codes 24 & 31. I know what they are and have an idea where to start looking, but it would be great to hear whether you got this resolved.

scope103

http://personal.utulsa.edu/~nathan-b...33volumeai.pdf
If you get both codes at the same time, I would suspect the wiring.

But run the diagnostics; then you'll know for sure.