Broken Inlet Air Temp (IAT) sensor


P

PhatBob

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Jan 31, 2011
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I pulled out the IAT on my B16B and was slightly amazed that the end of the sensor was damaged! There appears to be only one wire sticking out the end, and the surround looks burnt...

I don't know how common this is, but I'd think it worth removing the two screws and pulling the IAT out to check the condition on people's engines. I am hoping that the ECU can cope with a sensor failure, but I suspect the engine has been running rich for a while.
 
I'v never come across this before and i'v had a fair few of those sensor's out to relocate them... Strange...
 
...that would make it ruin rich. Do you have black soot all over the back of your civic? Easy fix tho.
 
Theres plenty soot and associated mess available, I don't have a Civic yet so I have nothing to clean.
I'm going to be drilling out and tapping the to take an M14x1.5 Bosch sensor for the aftermarket ECU that I'll be using.

My only concern is how long it was running like that, and how much fuel contamination of the oil will have occured. It should have been okay on part throttle driving as the lambda feedback would have kept the fuel mix at stoich, but how many VTECs get driven at anything other than WOT?

Time will tell I guess :D
 
I had the same problem with mine when i pulled it out.

I have no idea how it happened.... guess it can "wear out" lol

once i replaced mine, my fuel consumption was much less
 
very strange, makes you wonder whats happend to the bits :-0
 
...one hell of a miss fire all the way back up to the IAT? :|
What else could do this? Aggressive cleaner?
 
Quite simply I don't know, I do know that 30 minutes at MASS Race Engines hot wash has the manifold cleaned out nicely now, quite what I am going to do about the engine I do not know - I suppose that I can lean it out at idle for a bit to try and burn off the soot that's bound to have coated the combustion surfaces.
It won't be happening again now that I've converted the IAT sensor to a Bosch one!
 
PhatBob said:
Quite simply I don't know, I do know that 30 minutes at MASS Race Engines hot wash has the manifold cleaned out nicely now, quite what I am going to do about the engine I do not know - I suppose that I can lean it out at idle for a bit to try and burn off the soot that's bound to have coated the combustion surfaces.
It won't be happening again now that I've converted the IAT sensor to a Bosch one!
Click to expand...

pic?
 
I'm going to do a standalone ECU install thread once I've got a couple more of the sensors fitted and some of the loom built.
 
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