Where is intake air temperature sensor at on 1997 Nissan Sentra

Hi Joe
Don't forget it is P-Zero and not P-Letter O.

Yes, just about. This is the one that will leave you stranded though.

P0354 OBD-II Trouble Code: Ignition Coil D Primary / ...

YourMechanic https://www.yourmechanic.com > Articles
Trouble code P0354 means there's a problem in ignition coil D circuit, probably an electrical problem, and the engine will run rough or stall.

Nissan; MIL ON with DTC P0101

National Highway Traffic Safety Administration (.gov) https://static.nhtsa.gov > odi > tsbs PDF Dec 1, 2016 - The MIL is ON with DTC P0101 for Mass Air Flow sensor (MAF) stored in the ECM. ... 2011 Sentra. (with MR20DE engine). 9AA0A, 9AA1A, 9AA2A, 9AA3A.
11 pages

Code P0101 2011 Nissan Sentra Mass Air Flow Circuit ...

AutoCodes https://www.autocodes.com > p0101_2011_nissan_sen...
The Mass Air Flow (MAF) sensor is placed in the stream of the intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It ...

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It's part of the MAF Sensor.

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Its on the air duct behind the filter housing,

To the left of the strut tower bar their should be a bunch of wires dont pull, but jiggle a few to see if any are loose. if one is then their is your IAT.

basically it should be in the air cleaner housing or rubber intake tube from housing to throttle body

Possibly the intake air temperature sensor or the engine coolant temp sensor are stuck at full hot. The computer will schedule too little fuel--especially with the engine cold and you'll have very little power until the engine actually gets closer in temp to the stuck sensor. The engine coolant temp sensor sends signals to the computer NOT to your temperature gauge on the instrument panel. That is a different sender. So your coolant temp gauge on the instrument panel may show normal.

Take note of the blurb regarding NISSAN products below

A code P0128 may mean that one or more of the following has happened:

• Low engine coolant level
• Leaking or stuck open thermostat
• Faulty cooling fan (running too much)
• Faulty coolant temperature (ECT) sensor
• Faulty intake air temperature (IAT) sensor

Past experience indicates that the most likely solution is to replace the thermostat. However here are some suggestions on troubleshooting and repairing a P0128 OBD-II code:

• Verify coolant strength & level
• Verify proper cooling fan operation (check if it's running more than it should). Replace if necessary.
• Verify proper engine coolant temperature (ECT) sensor operation, replace if necessary.
• Verify proper intake air temperature (IAT) sensor operation, replace if necessary.
• If the above items check out good, replace the thermostat
• If Nissan vehicle, check for Technical Service Bulletins (TSBs), as the ECM may need to be reprogrammed to correct the P0128 code

could be the air mass sensor or a fuel delivery problem eg, fuel pump or filter blocked up.

also check for tears in air pipes, or poor seals around the air intake and air box.

Regards
Dan

CODE P1278- HEATED OXYGEN SENSOR 1 SLOW RESPONSE.POSSIBLE CAUSE EXHAUST LEAK AT EXHAUST MANIFOLD OR PIPES.FAULTY PRESSURE REGULATOR LEAKING OR FUEL INJECTORS LEAKING.AND FAULTY TPS SENSOR.

The IAT on the 1.8 engine is located in driver side follow before the air box and you will see a sensor thats the intale air temp sensor, hope that helps

needs to be either in the air ccleaner or intake ducting

IT IS ON THE HOSE THAT BRINGS AIR INTO THE AIR FILTER HOUSING