P0127 Nissan Code - Intake Air Temperature Too High
Quick Answer
The Intake Air Temperature (IAT) sensor is variable temperature sensitive resistor that measures the temperature of the air in the intake system. Common causes include Faulty Intake Air Temperature (IAT) sensor, Intake Air Temperature (IAT) sensor harness is open or shorted, Intake Air Temperature (IAT) sensor electrical circuit poor connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0127 Nissan indicates Intake Air Temperature Too High.
- Common causes
- Common causes include Faulty Intake Air Temperature (IAT) sensor, Intake Air Temperature (IAT) sensor harness is open or shorted, Intake Air Temperature (IAT) sensor electrical circuit poor connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0127 Nissan Description
IAT sensor values are used by the ECM processor to assist with the calculation of idle speed, fuel mixture and spark advance.
Inaccurate voltages from the IAT sensor may affect pulse-width, idle quality, and tail pipe emissions. Intermittent signals may cause hesitation, stumble and surging. If an IAT sensor failure accompanies an Engine Coolant Temperature (ECT) sensor failure, cooling fan operation may also be affected.
Some manufacturers incorporate the Intake Air Temperature (IAT) sensor as part of the Mass Air Flow (MAF) sensor (Air Flow Meter).
What are the Possible Causes of the DTC P0127 Nissan?
- Faulty Intake Air Temperature (IAT) sensor
- Intake Air Temperature (IAT) sensor harness is open or shorted
- Intake Air Temperature (IAT) sensor electrical circuit poor connection
How to Fix the DTC P0127 Nissan?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0127 Nissan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Nissan Models
- P0127 2002 Nissan Altima Sedan — Intake Air Temperature Too High
- P0127 2003 Nissan Altima Sedan — Intake Air Temperature Too High
- P0127 2004 Nissan Altima Sedan — Intake Air Temperature Too High
- P0127 2005 Nissan Altima Sedan — Intake Air Temperature Too High
- P0127 2006 Nissan Altima Sedan — Intake Air Temperature Too High
- P0127 2008 Nissan Altima Sedan — Intake Air Temperature Too High
- P0127 2009 Nissan Altima Sedan — Intake Air Temperature Too High
- P0127 2010 Nissan Altima Sedan — Intake Air Temperature Too High
- P0127 2011 Nissan Altima Sedan — Intake Air Temperature Too High
- P0127 2012 Nissan Altima Sedan — Intake Air Temperature Too High
- P0127 2004 Nissan Maxima — Intake Air Temperature Too High
- P0127 2005 Nissan Maxima — Intake Air Temperature Too High
- P0127 2006 Nissan Maxima — Intake Air Temperature Too High
- P0127 2007 Nissan Maxima — Intake Air Temperature Too High
- P0127 2008 Nissan Maxima — Intake Air Temperature Too High
- P0127 2008 Nissan Rogue — Intake Air Temperature Too High
- P0127 2009 Nissan Rogue — Intake Air Temperature Too High
- P0127 2010 Nissan Rogue — Intake Air Temperature Too High
- P0127 2011 Nissan Rogue — Intake Air Temperature Too High
- P0127 2012 Nissan Rogue — Intake Air Temperature Too High
- P0127 2013 Nissan Rogue — Intake Air Temperature Too High
- P0127 2002 Nissan Sentra — Intake Air Temperature Too High
- P0127 2003 Nissan Sentra — Intake Air Temperature Too High
- P0127 2004 Nissan Sentra — Intake Air Temperature Too High
- P0127 2005 Nissan Sentra — Intake Air Temperature Too High
- P0127 2006 Nissan Sentra — Intake Air Temperature Too High
- P0127 2007 Nissan Sentra — Intake Air Temperature Too High
- P0127 2008 Nissan Sentra — Intake Air Temperature Too High
- P0127 2009 Nissan Sentra — Intake Air Temperature Too High
- P0127 2010 Nissan Sentra — Intake Air Temperature Too High
- P0127 2011 Nissan Sentra — Intake Air Temperature Too High
- P0127 2012 Nissan Sentra — Intake Air Temperature Too High
- P0127 2007 Nissan Versa — Intake Air Temperature Too High
- P0127 2008 Nissan Versa — Intake Air Temperature Too High
- P0127 2009 Nissan Versa — Intake Air Temperature Too High
- P0127 2010 Nissan Versa — Intake Air Temperature Too High
- P0127 2011 Nissan Versa — Intake Air Temperature Too High
- P0127 2012 Nissan Versa — Intake Air Temperature Too High
Frequently Asked Questions about P0127 Nissan Code
No Frequently Asked Questions about P0127 Nissan Code found.
Discuss the causes and fixes for P0127 Nissan OBDII Code
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Codes read at auto part store were
P0127 - intake air temp sensor - 2-i
P0300B - random misfire
P0328- knock sensorSymptoms are engine running rich, spark plugs being fouled, abnormal idle in drive(600 in D, 900 in P), will check IAT sensor for proper grounding and resistance before replacing
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Neither the knock sensor or the Intake Temperature Sensor will cause the engine to run rich (rich enough mixture to be noticeable), but there must be something else causing the random misfire. My guess is that one or more of the ignition coils is not working properly, causing the spark plugs to fouled and the rich mixture.
If you clear the codes, what code comes back first? -
I haven't tried clearing them and testing it. I don't know when the light comes on, as my SES light bulb is blown. For a long time, didn't even know I had a light that was on. It could very well just be the coil pack. One day, my car wasn't starting so I took all the coil packs out, knowing it was probably just flooding. And sure enough, when I took the 3rd from the left out, Cyl 3 I'm guessing, a very visible vapor of gas come out of the top. Do you think I'd be safe just replacing them all, one at a time, or just the one in Cyl 3?
Also, thank you for your reply. I wasn't expecting one
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