Hi how are you doing today well I have a 97
Thunderbird I just changed all three O2
sensors and my check engine light is still
blinking how long does it take for it to start
working or what do
what else do I need to
A blinking check engine light is warning you that the engine is misfiring and damaging catalytic converter. It probably has nothing to do with the O2 sensors. Are you overdue for a tune up? I'd start there. Also visit your local auto parts store and ask them to scan the computer. Most will do it for free. That will tell you which cylinder(s) are misfiring. HTH. -Jim
Once the codes are read they can clear them off the computer but they will reappear if you did not fix the problem.
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