Guide To P00A2 OBD Error Code Solutions
OBD Code P00A2 - Charge Air Cooler Temperature Sensor Circuit Low Bank 2
If you experience exponential drop in the fuel economy, and
your car engine is stalling with improper throttle response and Check Engine
Light turned on. It might be an indicative to OBD Code P00A2 error.
This code basically points out the problem with the Air
Charge Cooler Sensor and Circuit
Learn More About OBD Error Code P00A2
OBD-II Code Powertrain Control Module (PCM)
failure is defined as a Charge Air Cooler Temperature Sensor Circuit Low
The Charge Air Cooler Temperature Sensors
informs the engine control module (PCM) about the air temperature exiting the
charge air cooler assembly. The Charge Air Cooler Assembly cools the air coming
out of the turbocharger before it enters into the engine. If the PCM detects an
incorrect signal from the Charge Air Cooler Sensor, the PCM will set code
P00A2.
What causes
the problem with the Charge Air Cooler Temperature Sensor Circuit?
- Fault in the CACT (Charge Air Cooler
Temperature Sensor) sensor
- Damaged wires and connectors of the sensor
- Faulty Air Cooler circuit
- Problem in the PCM to interpret the transmitted
sensor data
Replace/Repair These Parts To Fix OBD Code P00A2
- Turbocharger - Faulty turbocharger won’t be able to force extra
air into the combustion chamber. Replace your old turbochargers with us!
- Supercharger - Damaged supercharger will not increase the air pressure
or density of air supplied to an internal combustion engine, thus reducing
engine power. Replace damaged supercharger and parts today!
- Air Temperature
Sensor - The Air
Temperature sensor plays a crucial role in the engine performance. Replace
faulty sensor now!
- Engine Control
Module - Faulty ECM leads to engine stalling or not
starting, and check engine lights being on. Replace damaged ECM now!
- Intercoolers - A damaged intercooler will not reduce the
air temperature and thereby not increasing the density of the air supplied to
the engine. Visit us to buy quality intercooler today!
- Powertrain
Control Module - PCM related issues
can hamper the fuel delivery system and engine performance. Find all the
Powertrain related parts with us.
- Diagnostic Tool - You will need high
grade diagnostic tools for correction of the OBD error code which is detected.
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Symptoms Of OBD Error Code P00A2
Following are the symptoms that indicate the problem with the Air
Cooler Temperature sensor and circuit thus flashing of P00A2 error.
- Illumination of Check Engine Light
- Impacted engine performance due to poor air/fuel ratio and
temperature difference
- Increased fuel consumption
- Vehicle running in "limp" mode to protect the engine
- If equipped, the Diesel particulate filter regeneration gets
inhibited
How To Correct P00A2 Charge Air Cooler Temperature Sensor Circuit Low Bank 2
Proper
scan tools should be used to detect and diagnose the problems related to a
particular OBD error code. After testing it is important to check that the
error doesn’t reflect back anymore. Some of the common components that account
to the major problems of the P00A2 error code and when fixed can fix the
problem are:
- Replacement
CACT (Charge Air Cooler Temperature Sensor) – This component keeps the check on
the temperature of the air entering the engine and coordinated with the ECM
specifying the air’s temperature before it enters the engine.
- Bad
wiring to the CACT (Charge Air Cooler Temperature Sensor) can be the first
reason for the sensor’s fault and for the Error P00A2 to flash.
- PCM (Powertrain Control Module) – If all the other tests of the sensor and circuit come out to be perfect, then the PCM should be checked for faults and replaced if necessary.
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Easy Diagnosis Of Engine Error OBD Code P00A2
P00A2 is properly diagnosed with an
advanced scan tool capable of factory sensor readings (not just one from an
auto parts store). A qualified technician can read the data from the advanced
scan tool to determine when the problem occurred, or if it is still occurring.
They may clear the code/light and test drive the vehicle while monitoring the
scan tool data to see if the fault returns or is present.
Based upon the conditions of the test,
possibly clearing the code, and road testing the car while monitoring the data,
further diagnosis may be required. Diagnosis may require multiple tools such
as:
- A technician typically begins by hooking
the vehicle up to an OBD-II scanner in order to verify that the code is
present, and check for other codes.
- This data along with freeze frame data is
recorded, and the codes are then cleared to see if they reoccur.
- Next, there should be a visual inspection
of the wiring and connectors to check for loose connections, corrosion, or
shorts.
- A specialized tool may be used to test the
CACT sensor and circuit. Other tests of the CACT and camshaft components may
help pinpoint the problem, as well as data transmission accuracy.
- If there is no problem found with the
sensor and the circuit, then the most probable answer to the problem is a
faulty PCM circuit. A PCM consists of the ECM and the transmission control module
and can cause great problems with it is unable to interpret the right data from
other sensors.
Common Mistakes When Diagnosing OBD Code
P00A2
Oftentimes the PCM sensor and circuit is
blamed, and replaced, without checking the Charge Air Cooler Sensor and circuit
as well as neglecting the damaged wiring and connectors. Because there can be
several causes for this code, a complete inspection should be carried out in
order to avoid repairs that may be unnecessary and more expensive.