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

new member hello, and HELP

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Old 10-17-11, 04:14 PM
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pippy
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Default new member hello, and HELP

Just joined and I guess a shout out howdy is in order.... I'm also in need of some help..
I just bit the bullet and replaced 2 coils, spark plugs and valve cover gaskets,,, phew, talk about aggevating., anyway took it to the dealer and they said I needed all those things (which I did) but the problem is the CEL it has been on for some time now and keeps giving me all kinds of codes besides the one's I took care of. What's the best way to fix this problem...
As of now, after I did all that work, I replaced the O2 sensor on the back bank because it was giving me a lean code, now the latest codes are:
( P0171 system lean front bank)...
(P1155 fuel ratio sensor, bank 2 sensor 1)
P0125 coolant temp. sensor)
a lot of these codes were there before I started, so I don't think it was something I did...
could 1 thing be causing all these codes or do I have to replace all these sensors too....
any help will be apreciated
Old 10-17-11, 04:35 PM
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carguy07
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I think you just need the front air fuel sensor and you will be good to go, ignor the P0125 it will go away when you fix A/F sensor.

OE Denso parts only. Amazon has the best prices.

http://www.amazon.com/Denso-234-9009...=5336108637-20
Old 10-17-11, 05:27 PM
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hypervish
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Reset the codes. And, see which one comes on first.

Like carguy07 suggested it's likely your A/F sensor.
Old 10-17-11, 07:58 PM
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pippy
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a/f sensor ? is that what they call the o2 sensor now
Old 10-17-11, 09:41 PM
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99rx
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Yes all it means is Air/fuel sensor. Same thing. Have the codes reset at an auto parts store or disconnect the battery for 10 mins. Then see what comes back.
Old 11-19-11, 07:35 PM
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pippy
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thanks for the help,,, sorry I've been a little busy, and I haven't been able to get back with an official THANK YOU. Put the O2 sensor on (great website, saved $100) and sensor worked like a charm. THANKS again
Old 11-19-11, 07:47 PM
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hypervish
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Thank you for updating the thread! It's good to know you solved the problem!
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