KAguilar

My car drives fine if I am driving locally (near the house) but if I am go anywhere that is 15-20 miles out the car starts to kick back and the check engine light will flash. The car loses power and seems the overdrive isn't working. This morning after about 10 miles my car would not go over 40 mph. I went to Auto Zone and received the below codes, I am not sure where to start.

P0420
P0441
P1150
P0305
P0300
P0440
P0770
P1320

fastnoypi

have the sparkplugs ever been replaced?

KAguilar

The spark plugs and coils were changed the beginning of last summer

fastnoypi

i would start with the coils to ensure they are all seated and click properly. Everything else is emmisions related which may have been triggered by a loose coil connector. If all looks good, i'd then check the o2 sensor corresponding to one of your codes with a multi-meter to see if it is within spec.

KAguilar

Thank you, I will start with the coils and the guy at auto zone also recommended checking the hoses. Hoping it is something simple

maxSteel

i would clear the codes and check which one is reported first.
For that you might need your own reader.

thomas1

Did you use OEM Iridium NGK or Denso spark plugs..?