MOST COMMON issue -
The Millenias and their Commonwealth cousins the "Xedos" all suffered a common defect resulting in MOST CEL issues. This engine configuration typically results in the need for replacement of 1 to 2 O2 sensors and / or the DREADED Knock Sensor embedded deep in the Manifold assembly. Mine ran 3 years with this CEL on due to the cost of labour to replace. The sensor was only 165 bucks while the labour to install was nearly 800.
I will admit once it was replaced I was not only legal again for the Emmissions test, but the thing ran better than it ever did PLUS I got nearly 2 points to my highway Mileage.
Now the codes are confusing on this because two of the O2 sensors share the same circuit and the code wont necessarily identify WHICH o2 is actually bad, that unfortunately is hit or miss. The KNOCK sensor code is separate and distinct however but all of this results in a costly set of repairs.
Good Luck
No, the check engine light does not come on because your gas is half way full. The check engine light will come on if there is a problem with the engine.
If an check engine light does not come on it is a good thing. When your check engine light comes on, it means you need service done on your vehicle.
No the check engine light will not come on
No, the check engine light has nothing to do with the oil level in the vehicle. The check engine light will come on when there is a problem with the emission system. The red oil warning light will come on if your vehicle is low on oil.
If it has a downstream O2 sensor the check engine light will come on but if it does not the light may not come out. In most instances it will set the check engine light.
95 s10 blazer has a miss and check engine light does not come on and exhaust smells gassy what could it be
There are lots of different reasons a check engine light can come on does the car feel any different?
It will usually come on. The speed sensor on my transmission died and it displayed the check engine light.
Go to AutoZone and ask one of the fellas to come out and "check your check engine light code". They will be able to tell you what the problem code is, as well as re-set your check engine light.
Oil level or pressure will not trip a check engine light.
The check engine light does not come on for an oil change.
No - usually the Check engine light is for the emission control system