SOURCE: 2004 dodge 1500 4 x 4 the engin mlight came on and
SYMPTOM
P0404-EGR POSITION SENSOR PERFORMANCE
WHEN MONITORED
Engine running.
SET CONDITION
The EGR flow or valve movement is not what is expected.
POSSIBLE CAUSES
- Good trip equal to zero
- Excessive resistance in (F856) 5-volt supply
- (K34) EGR sensor signal circuit shorted to ground
- EGR assembly
- (K35) EGR solenoid control circuit
- Intermittent condition
- (K34) EGR sensor signal circuit open
- (K34) EGR sensor signal circuit shorted to ground
- (K900) sensor ground circuit open
- EGR assembly (ground)
- PCM
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