help needed for 2001 impala
#1
help needed for 2001 impala
The check engine light is on and my OBDII diagnostic says that the fault is P1404 EGR closed position performance. I replaced the EGR valve, and still get the same fault.....Any ideas?
Ken
Ken
#3
DINOSAURUS BOOSTUS
Expert Gearhead
Interesting. I'd check the ground and 5 volt to the valve. The closed position only needs to be off by .29 volts to toss this code. The PCM is reading the actual position of the valve.
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