Showing the check engine on at all times when driving the car.
Feb 8, 2017 at 3:21 AM
Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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STEVE W.
AUTOMOTIVE REPAIR CONTRIBUTOR
15,146 POSTS
If you mean the CEL is on while the engine is running then you need to use a scan tool to read the codes and determine from those what the problem actually is. Keep in mind that it is very rare that a code actually points to an actual bad part.
Feb 8, 2017 at 4:00 AM
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COYUGI
MEMBER
2 POSTS
The mechanic doesn't know how to programme the Diagnoser kit.
Feb 9, 2017 at 1:16 AM
SATURNTECH9
AUTOMOTIVE REPAIR CONTRIBUTOR
30,869 POSTS
If the mechanic doesn't know how to read codes even you really need to find someone that knows what there doing to work on your car.Getting the codes out of the computer is a very basic step and starting point for the check engine light being on.