Difference between revisions of "User:Jef"
From Ross-Tech Wiki
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− | == | + | == P026A/000618 - Charge Air Cooler: Efficiency Below Threshold - MIL ON == |
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− | + | ==== Possible Symptoms ==== | |
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+ | * Malfunction Indicator Lamp (MIL) active | ||
+ | * Reduced engine output | ||
− | + | ==== Possible Causes ==== | |
+ | * Intercooler restricted (internal or external) | ||
+ | * Faulty sensor | ||
+ | * ECM firmware issue | ||
− | + | ==== Special Notes ==== | |
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− | + | * When found in a Touareg with the 3.0L TDI CNRB engine, there may be a firmware update to for this. | |
− | + | ** https://static.nhtsa.gov/odi/tsbs/2013/SB-10067148-5290.pdf | |
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− | + | * On some TDI CR engines, a faulty G42 / G31 sensor at the top of the intercooler can cause issues. The sensor may report a much higher than possible temperature: | |
− | + | ** IDE04938 - Sensor for temp after charge air cooler: raw value | |
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− | + | When found in a Touareg with the 3.0L TDI CNRB engine, there may be a firmware update to for this. | |
− | + | https://static.nhtsa.gov/odi/tsbs/2013/SB-10067148-5290.pdf | |
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Revision as of 11:48, 13 March 2025
P026A/000618 - Charge Air Cooler: Efficiency Below Threshold - MIL ON
Possible Symptoms
- Malfunction Indicator Lamp (MIL) active
- Reduced engine output
Possible Causes
- Intercooler restricted (internal or external)
- Faulty sensor
- ECM firmware issue
Special Notes
- When found in a Touareg with the 3.0L TDI CNRB engine, there may be a firmware update to for this.
- On some TDI CR engines, a faulty G42 / G31 sensor at the top of the intercooler can cause issues. The sensor may report a much higher than possible temperature:
- IDE04938 - Sensor for temp after charge air cooler: raw value
When found in a Touareg with the 3.0L TDI CNRB engine, there may be a firmware update to for this.
https://static.nhtsa.gov/odi/tsbs/2013/SB-10067148-5290.pdf