Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that a hose that helps the car's engine breathe is not connected properly.
The P2C90 code is triggered when the Engine Control Module (ECM) detects that a hose in the crankcase ventilation system is disconnected.
The crankcase ventilation system is responsible for removing gases from the engine's crankcase and rerouting them back into the intake manifold to be burned. If a hose in this system is disconnected, it can lead to improper engine operation and increased emissions.
• Check Engine Light is on
• Rough idling
• Increased engine emissions
• Hose A is physically disconnected
• Hose A is damaged or cracked
• Improper installation of the hose
Crankcase: The housing for the crankshaft in a combustion engine.
Ventilation System: A system designed to manage the air flow and emissions from the engine.
• Visually inspect the crankcase ventilation hoses for disconnection or damage.
• Check for any cracks or leaks in the hoses.
• Ensure the hose is properly connected to the crankcase and intake manifold.
• Reconnect the disconnected hose.
• Replace any damaged or cracked hoses.
• Ensure all connections are tight and secure.
• Socket set
• Screwdriver
• Hose clamp pliers
$50 - $150
Easy
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect hoses for wear and tear.
• Ensure proper installation during maintenance.
• Use high-quality hoses resistant to engine heat.
Engine Performance
• Check the hoses regularly to avoid this issue.
• Consult a mechanic if you're unsure about the repair.
Repairs may be covered under the vehicle's emissions warranty.
This code has been associated with improper maintenance or installation of crankcase ventilation components.
Moderate – Should be addressed soon to prevent further engine issues.
Driving with this code active may lead to increased emissions, which could be against local regulations.
• Engine running at idle
• Warm engine temperature
The crankcase ventilation hose is typically located on the top or side of the engine, connecting the crankcase to the intake manifold.
Q: Can I drive with a P2C90 code?
A: It's not recommended as it can lead to increased emissions and potential engine performance issues.
Q: How do I know if a hose is disconnected?
A: You can visually inspect the hoses; a disconnected hose will not be attached at both ends.
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