check engine light ? ?

[johnnyboy1111]

My check engine light comes on after the car warms up , if I shut it off then restart it goes out then comes on after a few minutes , codes read O-2 sensor's , temp sensor, egr , which I replaced about 11 months ago...I have no cats & have the Mac power chamber exhaust, the exhaust tips look like she is running a little rich, she is idling OK & at 170,000 still burns no oil , I erased the codes twice but soon as it warms up on they come....any tip on what to try ????????? Thanks much.............................. Johnnyboy

 

[HISSIN50]

Johnny, hmmmm, well have you replaced the O2's? they are used during warm operation, hence why the light comes on when it gets hot. when they get old they dont switch fast enough and dont show the correct voltage variance.

the ECT could be related (tells the puter how warm the motor is). Jrichker has posted values in here - you can check them yourself if you wish.

my two cents. good luck.

 

[johnnyboy1111]

sensors

Thanks buddy I will give that a try, all those miles and that 5.0 is still strong as ever !