Thanks for your input s130
The Check engine signal showed from cold on an outbound trip of about 15ml last week – with evident loss of power. But on the inbound 15ml leg about 2hrs later, performance seemed back-to-normal. MoT was Tue29 - & error codes & comments at #1 above from my indie. Can’t recall now what reader kit they use - but they’ve suggested a visit to a “specialist” diagnostic outfit.
No start-up problems – but very limp in 1 & 2. Mpg drop to 35 av (from normal 40+) – but then only doing short local runs, no confidence to go further.
Had a Google & come-up with the following …
P0340 Camshaft Position Sensor “A” Circuit
What does this mean? BD Code P0340 refers to
This indicates that a problem was detected in the camshaft position sensor circuit. Since it says circuit, that means the problem could lie in any part of the circuit - the sensor itself, the wiring, or the PCM. Don't just replace the CPS (camshaft position sensor) and think that will definitely fix it.
Symptoms Possible symptoms of OBD code P0340
Symptoms can include: Hard starting or no start Rough running/misfiring Loss of engine power
Causes Possible causes of OBD code P0340
A code P0340 could mean one or more of the following has happened: a wire or connector in the circuit could be grounded/shorted/broken the camshaft position sensor may have failed the PCM may have failed there exists an open circuit the crankshaft position sensor may have failed
Possible Solutions With a P0340 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try: Visually inspect all the wiring and connectors in the circuit Check for continuity in the circuit wiring Check the operation (voltage) of the camshaft position sensor Replace the camshaft position sensor as required Check the crankshaft position circuit as well Replace circuit wiring and/or connectors as required Diagnose/replace the PCM as required
P0482 Fan 3 Control Circuit
What does this mean? OBD Code P0482 refers to
The electric cooling fan is controlled by the powertrain control module (PCM) through the cooling fan relay based on inputs from the following components: - The engine coolant temperature (ECT) sensor - The intake air temperature (IAT) sensor - The A/C selector switch - The A/C refrigerant pressure sensor - The vehicle speed sensor (VSS) The PCM controls the cooling fan by grounding the cooling fan control circuit which turns ON the cooling fan relay. The cooling fan relay will be commanded ON when the following conditions are met: - The engine coolant temperature reaches 106°C (223°F) or more. - The A/C clutch requested. - The vehicle speed is less than 38 MPH. The cooling fan relay will be commanded ON regardless of vehicle speed when the following conditions are met: - The engine coolant temperature is 151°C (304°F) or more. - The A/C refrigerant pressure is high. The cooling fan may be commanded ON when the engine is not running under a fan run-on conditions described in the electric cooling fan general description portion of the service manual.
Symptoms Possible symptoms of OBD code P0482 - Engine Light ON (or Service Engine Soon Warning Light) - Engine overheating
Causes Possible causes of OBD code P0482
- Fan control relay harness - Fan control relay connector - Fan control relay - Cooling Fan 3 The Error code is generally activated on detection of the following conditions: The P0483 code is detected when the PCM detects that the commanded state of the driver and the actual state of the control circuit do not match.
Possible Solutions - Replace the malfunctioning fan control relay 3 - Replaced cooling fan 3
P0683 Glow Plug Control Module to PCM Comm Circuit
What does this mean? OBD Code P0683 refers to
The Engine Control Module (ECM) has detected a communication fault with the Glow Plug Control Module (GPCM) circuit
Symptoms Possible symptoms of OBD code P0683
- Engine Light ON (or Service Engine Soon Warning Light) - Lack/Loss of Power - The engine may be harder to start - Engine hesitation
Causes Possible causes of OBD code P0683
- Control line open circuit - Control line short to ground or power - Faulty GPCM - ECM fault
Possible Solutions
Source:
www.permoveo.ltd.uk/
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