Code help needed: P0110 and P0105

[Compton]

Hi,

I replaced my spark plugs, ignition coils, radiator fan motor and thermostat last weekend. When I started the car back up, the SES light was on. The codes thrown were

P0110 IAT Mal
P0105 Map Cir Mal

The IAT=Intake Air Temperature but not sure what that means. I had the codes cleared by a mechanic and they haven't come back yet. Can anyone explain what the codes mean? And is this just due to replacing too much stuff at once and it temporarily trippped a code but doesnt indicate a long term problem?

Any advice is appreciated.

[Igor911]

Check out this thread:

http://forums.maxima.org/showpost.ph...11&postcount=2

[Compton]

Thanks for the link.

But what do they mean?

P0105 Absolute pressure sensor
P0110 Intake air temperature sensor

[ihavea5spd]

Originally Posted by Compton

Thanks for the link.

But what do they mean?

P0105 Absolute pressure sensor

detects ambient barometric pressure and sends the voltage signal to the ecm. as the pressure increases the voltage rises.

problem could be the harness or connectors (sensor is open or shorted) or it could be the sensor itself.

you could try to loosen and retighten your engine ground screws.
disconnect the abs. pressure sensor harness and cehck it for water.

there are other things to check too, but you need tools to do it.

P0110 Intake air temperature sensor

this is mounted to the air duct housing. it detects air temp and sends a signal to the ecm. this problem could also be caused by the harness, or the sensor itself. try wiggling it, or disconnect and reconnecting it. if that doesn't work, again you need tools.

[Compton]

My mechanic might have disconnected some of these things temporarily when installing everything. Hopefully that is all it is