Code 24 help

[JonnyZ(Socal)]

Did a search but didn't come up with much. I also looked in the tsrm. I know that its the air intake temp sensor, but my question is how do I fix it or find out the problem? Thanks in advance for any help =]

 

[jetjock]

You looked in the TSRM?

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=96

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=50

If the AFM itself checks out but the resistance is infinite at the ECU, shorted, or doesn't jive with the ambient temp then you test the two wires separately. That includes testing the AFM connector.

Or measure the voltage of THA referenced to E2 with the key on:

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=51

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=60

THA has to measure between 100mv and 4.8 volts. Yours doesn't, which is why you have the code...

 

[JonnyZ(Socal)]

Thanks for the help. I'm just not good with electrical diagrams! I am more of a remove and replace parts guy so these diagrams are really confusing and I'm not sure what to do. Is there a write-up for this or something that would make it easier to know what wires to test. Sorry for my stupidity :[

 

[jetjock]

No need to be sorry but all not trying will do is keep you confused. Just measure where and how the book says. I know you can do it.

It's either that or remove and replace the AFM, engine harness, and ECU. Not exactly the best way to do things...