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Because you removed the computer.
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∙ 12y ago
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What is wrong with a rav4 when the check engine light comes on?
There are dozens and dozens of causes for the check engine light to stay on. You need to have the computer checked for codes to know possible causes.
Why does the check engine light stay on in a 2000 Chevrolet Prism?
The computer has detected a problem with the emissions system.
Why does your check engine light stay on?
Computer (ECM) does a self test of components and has found a part that is out of the specified range and turns on the check engine light so that you get it checked out so that the problem doesn't get worse.
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If the check engine light does not flash when in the diag mode, the problem is the computer. Could be as simple as a failed lamp driver but a failed computer is toast and will need to be replaced/
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The computer has detected a malfunction. You need to have it checked for codes. You can then diagnose the code.
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Check engine light on 89 ford f150?
why does my check engine light stay on and want go off
What might cause a 2001 Chevy Impala 3.8L check engine light to stay on?
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Does a burned out tail light cause check engine light to stay on?
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Should check engine light stay on until you start engine Wagon r?
The light should stay on whenever the key is on and the engine is off.
Why does the 1983 Chevy S10 check engine light stay on constantly?
The computer is indicating the presence of a fault code. Find out why the computer is doing that by using a code scanner.
Is the check engine light supposed to stay on at all times?
No, if it stays on all the time the engine computer has detected a malfunction and set a code. You need to have it checked for codes.
