P2037 Chevrolet Code – Reductant Injection Air Pressure Sensor ‘A’ Circuit

Possible Causes

Faulty Reductant Injection Air Pressure Sensor
Reductant Injection Air Pressure Sensor harness is open or shorted
Reductant Injection Air Pressure Sensor circuit poor electrical connection
Faulty Reductant Pump Assembly

الأسباب المحتملة

خاطئ الحقن المختطف ضغط هواء محيط الحقن مستشعر ضغط الهواء مستشعر مفتوح أو قصير حقن الدائرة استشعار ضغط الهواء الدائرة

Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

الأعراض المحتملة

ضوء المحرك (أو خدمة محرك قريبا ضوء تحذير) ضوء)

Description

The reductant system uses a selective reduction catalyst to improve exhaust emissions and fuel efficiency by injecting a reductant into the exhaust system. The reductant also referred to as diesel exhaust fluid is a 32.5% solution of urea in deionized water. The reductant system reduces Nitrogen Oxides (NOx) present in the exhaust stream to nitrogen and water.
The Reductant Injection Air Pressure Sensor sends voltage reading information to the Powertrain Control Module (PCM). The PCM interprets these readings as pressure or exhaust gas temperature. The code is set when the voltage sent from the sensor to the PCM is out of factory specifications.

الشرح

النسبة المئوية ٪ 20DRUCTANTANT ٪ 20SYSTEM ٪ 20uses ٪ 20a ٪ 20SeCECTION ٪ 20REDUCTION ٪ 20CATALYST ٪ 20TO ٪ 20IMPROVE ٪ 20EXHAUST ٪ 20EMISSITES ٪ 20 و 20FUEL ٪ 20also ٪ 20referred ٪ 20to ٪ 20as ٪ 20diesel ٪ 20exhaust ٪ 20fluid ٪ 20is ٪ 20a ٪ 2032.5 ٪٪ 20solution ٪ 20of ٪ 20Urea ٪ 20in ٪ 20deionized ٪ 20water ) ٪ 20present ٪ 20in ٪ 20Teal ٪ 20exhaust ٪ 20stream ٪ 20to ٪ 20nitrogen ٪ 20 و ٪ 20water. ٪ 20 Dreductant ٪ 20Injection ٪ 20air 20pressure ٪ 20sensor ٪ 20sends ٪ 20voltage ٪ 20 Reading ٪ 20information ٪ 20te ٪ 20poowertrain ٪ 20control ٪ 20module ٪ 20module ٪ 20 (PCM). ٪ 20The ٪ 20pcm ٪ 20Interprets ٪ 20 هذا 20 READINGS ٪ 20AS ٪ 20pressure ٪ 20or ٪ 20exhaust ٪ 20gas ٪ 20temperature. ٪ 20The ٪ 20code ٪ 20is ٪ 20set ٪ 20to ٪ 20The ٪ 20pcm ٪ 20is ٪ 20out ٪ 20of ٪ 20factory ٪ 20 محددات.

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