Air senser?

Just replaced my air box, due to cracking and leaking in dirty air. with a cone air filter...works and sounds good but one problem, there was one senser that was in the box that obviously isnt on the cone
filter (its not the mass flow senser) its a little one. So i kept the senser just incase, but the other end i just taped up..but now the check engine ligh comes on right when i turn on the car.. any fixes? how bad is it for the car?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

That was your IAT (intake air temperature) sensor. The ECM uses it to control spark timing and also delays EGR operation when intake air temp is cold.
Could cause a few drivability issues including poor fuel mileage.
Steve
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Oh, and the fix is to put it back.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.