P00A7 - OBD Trouble Code
OBD Code P00A7 - Intake Air Temperature Sensor 2 Circuit Low Bank 2
The immediate signs of problem indicating OBD Error Code P00A7 can the Check Engine Light On, increase in the fuel consumption, smoke from the tailpipe and increased heat level indications.
OBD-II Code Decreased engine performance is defined as a Intake Air Temperature Sensor 2 Circuit Low
Learn More About OBD Error Code P00A7
The IAT (intake air
temperature) sensor is used to measures the temperature of air that is enters
the engine. This temperature is important as the higher the intake air, the
higher the combustion temperatures. Higher temperatures result in increased NOx
(Nitrogen oxides) emissions.
To control the increased
combustion temps, the intake air tubing should be intact. The IAT sensor
measures air temp by using a thermistor which is supplied 5 volts reference
voltage from the PCM (powertrain control module) and a ground. The change in
resistance changes the 5 V reference from the PCM, thereby informing the PCM of
the temperature of incoming air.
What causes the problem with the IAT Sensor
Circuit?
- Lack of reference voltage to IAT sensor due to open wiring.
- Increased high intake air temperatures
- Signal circuit is short to ground
- IAT connector are damaged
- Faulty PCM that requires replacement or reprogramming
Replace/Repair These Parts To Fix OBD Code P00A7
- Air
Temperature Sensor - The Air Temperature sensor plays
a crucial role in the performance of the engine. Replace faulty sensor now!
- Air
Intake Kits - It is important to maintain the proper air to fuel
ratio and enable proper functioning of the engine with the help of air intake
systems. Buy quality air intake kits from us.
- Air
Flow Sensor Connector - Air intake to the engine control unit is
detected by this sensor and if the connector is damaged, if will influence the
performance. Replace faulty connectors with us!
- Engine
Control Module - OBD Error Code P00A7 can be
indicated by engine stalling or not starting, and check engine lights being on
which can also be due to faulty ECMs. It’s better to get the faulty electricals
replaced as soon as possible.
- Powertrain
Control Module - P00A7 error code also relates to problems with the
powertrain that is not able to generate response in time causing distorted
engine timing. Find all the Powertrain related parts with us.
- Diagnostic
Tool - Detect the OBD error code by
using professional diagnostic tools. Buy them from us now!
Symptoms Of OBD Error Code P00A7
No noticeable symptoms
of a P00A7 code can be detected other than an MIL (Malfunction Indicator Lamp).
However, an emissions test can be done and it may reveal higher NOx readings
depending on the type of IAT failure. The engine may also stall under load,
depending on the level of sensor or circuit failure.
How To Correct P00A7 Intake Air Temperature Sensor 2 Circuit Low Bank 2
There
are some direct indications to the problem for P00A7 error. These auto parts
can be replaced first hand to solve the problem and check if the error
reappears.
- Replacement
of the Intake Air Temperature Sensor and circuit board
- Replacement
or reprogramming of the of the PCM
- Changing the damaged and worn out wirings and harness
Easy Diagnosis Of Engine Error OBD Code P00A7
The step by step analysis and diagnosis is
recommended by a qualified technician using high grade diagnostic tools to
check for all the problems and solving them.
- You
require a scanner or a code reader and a digital volt ohmmeter to successfully
diagnose this code. Begin your diagnosis by visually inspecting all wiring and
connectors to the sensor.
- Search
for shorted or burned wiring and replace them.
- Connect
the scanner to the diagnostic connector and record all stored trouble codes and
freeze frame data. After the codes are cleared, operate the vehicle to see if
the code returns. If the code fails to immediately return, you may have an
intermittent condition.
- Check
for the problem with the IAT sensor and circuits and diagnose to see with the
error returns.
- If everything else is fine, then the problem can be with the PCM. Replace the PCM if required and check if the code reappears.
Common
Mistakes When Diagnosing OBD Code P00A7
Some of the common mistakes done while changing
diagnosing the OBD code P00A7 are:
- Not
examining the IAT sensor failure
- Changing
the Powertrain Control Module (PCM) without checking other problems.
-
Not checking for damaged or short wiring and
connectors