SoTexDC2

Any ideas what would cause my IAT's to be showing "-40F"?

I'm running a stock OBD-II ecu in my GSR, and reading the data with an Auto X Ray OBD scanner. I rebuilt the engine about 5 months ago and at first the IAT's were realistic. They were pretty relevant to the outside temp. and would slowly increase as the engine warmed up.

A few days ago I changed the timing belt because I accidently got a bit of oil on it, and immediately after, the IAT sensor decided I lived in Antarctica. I did reset the ECU, otherwise the car seems to be running stellar.

Any ideas? Possible bad sensor?

95 integra

iTrader: (2)

see what happens when you unplug it, chances are -40 is the zero voltage reading.

SoTexDC2

I guess sometimes it takes a second opinion, I didn't even think of that. I'll try that right now, thanks!

SoTexDC2

Tried what you said and the reading was the same. The lowest possible reading is -40F.

I checked continuity and the sensor is fine. Turns out the wire was broken for some reason. Replaced it and problem resolved.

95 integra

iTrader: (2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SoTexDC2 &raquo;</TD></TR><TR><TD CLASS="quote">Tried what you said and the reading was the same. The lowest possible reading is -40F.

I checked continuity and the sensor is fine. Turns out the wire was broken for some reason. Replaced it and problem resolved. </TD></TR></TABLE>

Just wait until that snapped wire is the one running to your injector and you're like....wtf, why is my car running on 3 cylinders.