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Old Apr 29th, 2005, 11:19 PM   #1 (permalink)
mramstedt
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Failed Emission Test
Hi there!

I took my Almera 2000 to the yearly check-up and it FAILED.

The computer says the following:

P0304 Cylinder 4 Misfire Detected
P0450 EVAP Control System Pressure Sensor Malfunction

Also the check engine light is on.

Where to start?

- Plugs, wires, hoses?
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Old May 1st, 2005, 09:09 PM   #2 (permalink)
Spddracer
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Probably/Likely a bad intake gasket for the misfire code. They tend to blow on the 4th intake port. Poss a bad Vent control valve for the other code.
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Old May 2nd, 2005, 07:56 AM   #3 (permalink)
mramstedt
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Vent Control Valve?
Quote:
Originally Posted by Spddracer
Probably/Likely a bad intake gasket for the misfire code. They tend to blow on the 4th intake port. Poss a bad Vent control valve for the other code.
Where is the Vent Control Valve located and how to replace it?
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Old May 2nd, 2005, 03:54 PM   #4 (permalink)
Spddracer
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Quote:
Originally Posted by mramstedt
Where is the Vent Control Valve located and how to replace it?
The vent control valve is located behind hte left rear tire bolted to the carbon can with 2 bolts and also has 1 hose connected to it.
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Old May 3rd, 2005, 09:09 AM   #5 (permalink)
mramstedt
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valve?
Quote:
Originally Posted by Spddracer
The vent control valve is located behind hte left rear tire bolted to the carbon can with 2 bolts and also has 1 hose connected to it.
Is it under the car or inside the car?
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