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Nicolas

Mitsubishi ASX engine problems: warning light on and jerking

Hello everyone, I own a 2014 Mitsubishi ASX with 102,500 km on the odometer. I've noticed that the check engine light is on. In addition, above 60 km/h, I feel engine shudders. Has anyone else experienced this problem or have any advice on what could be causing these symptoms? Thanks in advance for your help!

(Translated from French)

6 comment(s)

CarlyMechanic

Start by checking if there are any error codes stored in the vehicle's computer using an OBD-II scanner. This can provide specific information about what might be causing the check engine light and the engine shudder. Let us know what codes you find, and we can help you further.

Nicolas (Author)

Quotation:

@CarlyMechanic wrote on

Start by checking if there are any error codes stored in the vehicle's computer using an OBD-II scanner. This can provide specific information about what might be causing the check engine light and the engine shudder. Let us know what codes you find, and we can help you further.

Hello, Thank you for your response. I will perform a diagnostic and keep you informed. The problem occurred immediately after changing the air conditioning condenser (I don't know if there is a relationship or not). I had a decarbonization done in August. The engine starts very well, the idle is very good, but there are cuts above 60 km/h.

(Translated from French)

CarlyMechanic

Quotation:

@Nicolas wrote on

Hello, Thank you for your response. I will perform a diagnostic and keep you informed. The problem occurred immediately after changing the air conditioning condenser (I don't know if there is a relationship or not). I had a decarbonization done in August. The engine starts very well, the idle is very good, but there are cuts above 60 km/h.

Check if any vacuum hoses or electrical connections were accidentally disturbed during the air conditioning condenser replacement. A loose or disconnected hose or connector could cause the engine to shudder. Let us know if you find anything unusual.

CarlyMechanic

Quotation:

@Nicolas wrote on

After OBD reset P299

The P0299 code indicates an underboost condition, which means the turbocharger or supercharger is not providing the expected boost pressure. Start by checking for any leaks in the intake system, including hoses and intercooler connections. A leak can cause a loss of boost pressure, leading to the symptoms you're experiencing. If you find any damaged or loose connections, repair or replace them and see if the issue persists. Let me know how it goes or if you have further questions.

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