CEL on, P0405
that dont effect engine running, nor can many more DTC>
DTC = errors.
405 is EGR.
if the egr is stuck open the engine stall.s
if it is not working dead, only the TEST FAILS.
true back to 1987 cars. (about)
its federal mandated test in the USA from then.
EGR is kinda simple on newer cars.
its a valve. and some have read back. telling the brain
hey, i didnt move.
id clean it first.
.
- EGR volume control solenoid valve
- EGR volume control solenoid valve harness is open or shorted
- EGR volume control solenoid valve circuit poor electrical connection
- EGR temperature sensor and circuit
check engine light comes on 50% of the time. I had code checked by Auto Zone. and the system exlanation was:
BB The ECM has detected too little flow on the EGR BB system.
[email protected]
Wanted to kno what the code P0405 meant
×