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P0545 – Exhaust Gas Temperature Sensor Circuit Low (Bank 1, Sensor 1)

How Urgent is the P0545 Code? The P0545 code indicates an issue with the exhaust gas temperature (EGT) sensor circuit, specifically a low voltage condition. While it's not necessary to immediately stop driving, it's best to diagnose and address this issue promptly. Continuing to drive with the P0545 code active could lead to decreased engine

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P0491 – Secondary Air Injection System Insufficient Flow

What is the P0491 Code? The OBD-II fault code P0491 means that the Secondary Air Injection System is not providing enough airflow into the exhaust system during cold engine start up on bank 1 (the side of the engine that contains cylinder #1). In our workshop, we've encountered the P0491 code quite frequently across various

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P0490 – Exhaust Gas Recirculation Control Circuit High

P0490: Exhaust Gas Recirculation "A" Control Circuit High Urgency Assessment The P0490 code indicates an issue with the Exhaust Gas Recirculation (EGR) system, which is not immediately critical for vehicle operation. While the vehicle can typically be driven, addressing the issue promptly is recommended to prevent potential damage and ensure optimal engine performance and emissions

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P0489 – Exhaust Gas Recirculation Control Circuit Low

Urgency Assessment The P0489 code, while not immediately critical, requires attention to prevent potential long-term damage and increased emissions. Continued driving is generally possible, but prolonged operation may lead to decreased fuel economy and increased wear on engine components. It is advisable to address the issue within a reasonable timeframe, typically within a few weeks.

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P0488 – Exhaust Gas Recirculation Throttle Control Circuit A Range/Performance

Understanding the P0488 Engine Code The P0488 OBD-II trouble code indicates an issue with the Exhaust Gas Recirculation (EGR) throttle control circuit. Specifically, it means the Powertrain Control Module (PCM) has detected that the EGR throttle valve is not operating within the expected range of performance. In our workshop, we've seen the P0488 code pop

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P0487 – Exhaust Gas Recirculation Throttle Control Circuit A Open

What is Code P0487? P0487 is an OBD-II generic powertrain code that stands for "Exhaust Gas Recirculation (EGR) Throttle Control Circuit 'A' Open". This code indicates there is an electrical issue with the EGR throttle control valve circuit. In our workshop, we've seen the P0487 code pop up quite frequently on European vehicles, especially Volkswagen,

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P0486 – Exhaust Gas Recirculation Sensor B Circuit

What is the P0486 Engine Code? The P0486 code indicates there is a problem with the Exhaust Gas Recirculation (EGR) Sensor "B" Circuit. This is a generic powertrain code that applies to all makes and models of vehicles from 1996 onwards. In our workshop, we've seen the P0486 code pop up quite frequently across various

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P0474 – Exhaust Pressure Sensor Intermittent

Urgency and Driving Considerations When the P0474 code is triggered, it indicates an issue with the exhaust pressure sensor circuit. While not extremely urgent, it's best to address it soon to prevent potential damage to the catalytic converter and maintain optimal engine performance and fuel efficiency. You can typically continue driving in the short term,

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P0473 – Exhaust Pressure Sensor High

The P0473 code is a generic powertrain/engine diagnostic trouble code that indicates an issue with the exhaust pressure sensor circuit. Specifically, it denotes that the Exhaust Pressure Sensor "A" Circuit is detecting a high input signal. In our workshop, we've noticed that the P0473 code frequently appears across various European car makes, particularly in Audi,

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P0472 – Exhaust Pressure Sensor Low

The OBD-II diagnostic trouble code P0472 indicates a low voltage condition in the exhaust pressure sensor "A" circuit. This code is crucial for engineers and mechanics to understand as it directly impacts engine performance and emissions control. Urgency Assessment While P0472 is not an immediately critical issue, it should not be ignored. The vehicle can

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