rx300 runs ruff with multiple codes help please
Thread Starter
Driver School Candidate
Joined: Mar 2014
Posts: 3
Likes: 0
From: washington
rx300 runs ruff with multiple codes help please
my 99 rx300 started running really ruff sputtering, codes thrown were p1346, p1349 vvt system malfunction, a/f sensor circuit response malfunction bank 1 sensor 1 bank 2 sensor 1. I checked the timing belt and it looks good its tight and all the timings marks are lined up so what should I do next I really need the car going and don't know what to try next?? help please
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Pole Position
Joined: May 2009
Posts: 2,838
Likes: 26
From: GA
Cody, welcome to the forum. If you go to the Lexus Models/RX forums, you'll find a section with the RX300 owners. That will probably give you more help.
my 99 rx300 started running really ruff sputtering, codes thrown were p1346, p1349 vvt system malfunction, a/f sensor circuit response malfunction bank 1 sensor 1 bank 2 sensor 1. I checked the timing belt and it looks good its tight and all the timings marks are lined up so what should I do next I really need the car going and don't know what to try next?? help please
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Pit Crew
Joined: Aug 2013
Posts: 170
Likes: 20
From: FL
Often in our beloved RX's the OCV's get blocked up from our sludge factory of an engine.
I'd replace them as basic RX maintenance anyways but you can try removing them and cleaning. Though often they "look" ok but in fact are bad.
I'm sure others will chime in with support as well.
I'd replace them as basic RX maintenance anyways but you can try removing them and cleaning. Though often they "look" ok but in fact are bad.
I'm sure others will chime in with support as well.
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