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

1999 RX 300 1,3,5 misfire and other problems

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Old 11-11-10, 06:09 AM
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maranda1
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Unhappy 1999 RX 300 1,3,5 misfire and other problems

I have a 1999 rx 300. I dont know what is causing these problems.
1,3,5 is misfiring
I am leaking a little bit of oil
o2 sensors showed up bad, but they were just replaced
It acts like it dont wanna shift
getting bad gas milage like 9mpg right now
Sometimes the breaks feel hard like thay are not going to work
It idles rough sometimes


?But after I reset my battery it runs perfect, like new foe 5 to 10 minutes any advice???
Old 11-11-10, 06:19 AM
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Lexmex
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Welcome to Club Lexus.

What are the actual codes you are getting?

Might just be misfire, but could be a knock sensor.
Old 11-11-10, 07:58 AM
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Carver
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How old is the battery?
Old 01-17-11, 11:03 AM
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MikeS99rx3
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i know this is a little old thread, but any updates? got the same misfires, the whole bank 1. p0172 code also. been searching for weeks now, can't find anything i didn't try already.
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