P2199 - Intake Air Temperature Sensor 1/2 Correlation

1265 Views 3 Replies 3 Participants Last post by andrew6847, 7 d ago

ballrootus

Hi,
I have a 2016 1.6 DTEC EX CRV, which has lately started showing a "Check Engine" light.
Connecting an ELM-327 BT scanner to the OBD port and reading faults on Torque Pro reveals that the fault code is P2199 - Intake Air Temperature Sensor 1/2 Correlation.
I have been able to monitor the intake air temperature while the engine is warm, and it's always at 50 degrees C plus or minus 5 degrees depending on whether I'm coasting or accelerating. The very fact that it's varying at all makes me think I'm reading IAT2 which I believe is part of the MAF sensor. That might be wrong of course, and 50 degrees seems a bit warm for air intake.
This has led me to try locating IAT1, and test that with a multimeter / hairdryer. Does anyone know where the sensor is located? I expected to see it somewhere around the air filter.

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UK-Kev

· #2 · 3 mo ago

@ballrootus
Hello and welcome.
Your MAP sensor looks like the attached picture, and I doubt this is the cause of your problem.

If you look at the second attached photo this is your MASS air flow sensor and is most likely the cause of your problem – Suggest you use one of these electrical spay cleaners, delete the fault code and see if it comes back – If it comes back you have two choose, either get an auto electrician to check it for you, or take a gable and fit a new part.

Part numbers given in title of photo.

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ballrootus

Discussion Starter · #3 · 3 mo ago

UK-Kev said:
@ballrootus
Hello and welcome.
Your MAP sensor looks like the attached picture, and I doubt this is the cause of your problem.

If you look at the second attached photo this is your MASS air flow sensor and is most likely the cause of your problem – Suggest you use one of these electrical spay cleaners, delete the fault code and see if it comes back – If it comes back you have two choose, either get an auto electrician to check it for you, or take a gable and fit a new part.

Part numbers given in title of photo.

Thanks UK-Kev