RX - 1st Gen (1999-2003) Discussion topics related to the 1999 -2003 RX300 models

00 RX300 check engine light flashing

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Old 04-21-15 | 05:59 AM
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KAguilar's Avatar
KAguilar
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Default 00 RX300 check engine light flashing

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
Old 04-21-15 | 06:20 AM
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have the sparkplugs ever been replaced?
Old 04-21-15 | 07:31 AM
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The spark plugs and coils were changed the beginning of last summer
Old 04-21-15 | 08:07 AM
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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.
Old 04-21-15 | 08:31 AM
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Thank you, I will start with the coils and the guy at auto zone also recommended checking the hoses. Hoping it is something simple
Old 04-21-15 | 07:30 PM
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i would clear the codes and check which one is reported first.
For that you might need your own reader.
Old 04-21-15 | 07:54 PM
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Did you use OEM Iridium NGK or Denso spark plugs..?
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