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#2: 09-15-2005, 07:13 PM
 
 Opie
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Quote:
DTC P0021 INTAKE CAMSHAFT POSITION - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 2) - H4DOTC

DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
GENERAL DESCRIPTION

TROUBLE SYMPTOM:
Engine stalls.
Improper idling

STEP 1:
CHECK CURRENT DATA.
1) Start the engine and let it idle.
2) Inspect the output of AVCS advance angle and oil flow control solenoid valve duty.

CHECK:
Is AVCS advance approximately 0 degrees, and the oil flow control solenoid valve duty output approx. 10%?

IF "YES":
Check the following item and repair or replace if necessary.
Engine oil (amount, dirt)
Oil pipe (clog)
Oil flow control solenoid valve (clog or dirt of oil routing, setting of spring, clog of valve)
Intake camshaft (dirt, damage of camshaft)
Timing belt (matching of timing mark)

IF "NO":
A temporary malfunction. Perform the following, and clean the oil routing:
Replace the engine oil and idle the engine for 5 minutes, and then replace the oil filter and engine oil.