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2018 CR-V 1.5T sudden loss of power and turbo lag

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Angela R. · rep 0 · May 22, 2:42 AM · 1 replies · solved · Question

Vehicle: 2018 Honda CR-V EX-L

I own a 2018 Honda CR-V EX-L with the 1.5L turbo engine. Lately, I've noticed a significant loss of power, especially when accelerating from a stop or trying to pass on the highway. It feels like the turbo isn't kicking in properly, and there's a lot of lag.

Sometimes, the check engine light flickers on briefly, but then goes off. It's really frustrating when I need that extra power. The car has about 65,000 miles on it.

I'm concerned about the turbocharger itself. Is this a common issue for this model year and engine? What should I look into? Could it be something simple or a major repair?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 2:42 AM

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ClearTheCode admin answer:

Loss of power and turbo lag in your 2018 Honda CR-V 1.5T can stem from several issues related to the turbocharged engine system:

  1. Turbocharger Wastegate Actuator: A common issue can be a faulty wastegate actuator or its linkage. If the wastegate isn't closing properly, boost pressure won't build effectively, leading to a lack of power. This can sometimes trigger codes like P0299 (Turbocharger/Supercharger Underboost).
  2. Boost Leaks: Leaks in the intake system (intercooler hoses, charge pipes) can cause a loss of boost pressure. Visually inspect hoses for cracks or disconnections.
  3. VTC Actuator/Solenoid: The Variable Timing Control (VTC) system plays a crucial role in engine performance. A malfunctioning VTC actuator or solenoid can affect valve timing, impacting power delivery and potentially causing the turbo to not spool correctly.
  4. Clogged Air Filter or Catalytic Converter: A severely restricted air filter can starve the engine of air, while a partially clogged catalytic converter can create excessive back pressure, both leading to power loss.
  5. Fuel System Issues: Less common, but a weak fuel pump or clogged fuel injectors could also contribute to poor engine performance.

When to See a Shop: Given the intermittent Check Engine Light and significant power loss, it's best to have a professional diagnosis. A technician can:

  • Scan for current, pending, and historical diagnostic trouble codes (DTCs) – even a flickering CEL can store codes.
  • Perform a smoke test to check for boost leaks.
  • Monitor live data from the turbocharger, VTC system, and fuel pressure sensors.
  • Inspect the turbocharger and wastegate for proper operation.

Addressing this promptly can prevent potential damage to the turbocharger or other engine components.

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