Hi
Sometime , very rare like 1 time to month , in freeways I like to feel the engine and push the throttle all the way down
Yesterday I saw the Service Engine Soon blinking when the car get high RPM , red zone . It'* normal ?

thanks

Wait, are you saying the RPM needle goes past 5-6,000 on the gauge?

SES blinking means a bad misfire....

maybe I over reacting , 4500-5000 rpm at least

Bad misfire as TechII mentioned, how old are the wires/ miles on spark plugs?
Would be good to know if there are any Obd2 stored codes present/history.

If I recall correctly, under bad misfire conditions, the computer will unlock the torque converter to get engine RPM'* increased to take the load off the engine.

Like already asked, how long since last full tune up?

Hi
yesterday the light blinking again in high RPM but stay ON this time .
I check the codes : P0300 , P0332 .
if some of you remember this is not the first time .

https://www.gmforum.com/buick-172/20...7-code-311060/
https://www.gmforum.com/buick-172/p0...esabre-311168/

Please , what could be the reason ?
I bought the before 6 months and all the time I have a problems ... :(

I don't change the spark plugs yet ...

Like they said: How many miles on the plugs and wires? Probably need to change both. Misfires are rare on this engine in stock form.

I'll replace the plugs and the wires .
today I check the coils and all the 3 make "ticking" noise when I unconnected them .

just to be clear , the warning light came only in high RPM .