Check the EGR selenoid valve. The vacuum will pass throught the defective selenoid valve and go the EGR valve even if it has not been activated. The ECM will not detect a defective selenoid valve - only an EGR problem.
DPFE sensorIf it's a Ford product, you may need a DPFE sensor. You should also check for a restriction in the EGR passageway.Check and or replace your starter solenoid.
2006 Lexus gs300 awd check engine on after spark plugs replaced
To replace the check engine light bulb, you will need to remove the dashboard. Once you have removed the dashboard, the bulb for the light will be exposed and can be changed.
You need to test/replace the knock sensor. ireplaced it already.
I have a 98 mystique, and when the check engine light comes on, I simply disconnect the positive battery terminal for a couple of minutes. When I replace it, the check engine light is cleared. It resets the computer.
replace only when u get a check engine light. the valve is good for the life of the motor(should be)
check engine light reset on a 1999 Acura CL 3.0.. Just replaced the egr valve. Thx
It means that your relay is out, and has to be replaced with a new one, and once its been replaced, your check engine light will turn off in about 20 minutes or so.
There are 2 knock sensor on the 5.3L engine. And they are under the intake manifold. To get to them you will have to remove the whole top of the engine- INTAKE MANIFOLD. Why do you think they need replaced???? check engine light came on for 2 sensor
check this site out
Did you check the fuse?
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.