CEL Code Change Question
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CEL Code Change Question
So lately my Lexus GS300 was throwing the P0420 code and seldom the P0430 code a long with it. It would have a lag in acceleration like if i was waiting for a turbo to spool up. I checked as best as I could for exhaust leaks and such but nothing seemed to be leaking. I though it was the sensors that needed replacing but the CEL would be intermittent. So at my last oil change I decided to check for intake leaks which I did not come up with anything but a massively dirty air filter that I changed out immediately as well as took the whole airbox and cleaned that as well. While I was in there I remembered reading about the possibility that the MAF sensor could be dirty so I cleaned it with the Cleaner spray everyone uses. Put everything back together and bam no codes for the first tank of gas and smooth power. Now I get the P0171 Code thrown.
My question is: What is could be causing this?
I was thinking about replacing the bank 1 sensor 1 O2 sensor. According to http://www.obd-codes.com/p0171
My question is: What is could be causing this?
I was thinking about replacing the bank 1 sensor 1 O2 sensor. According to http://www.obd-codes.com/p0171
#2
iModerate
I searched the 2GS forum for "P0171" and came up with 58 threads that discuss it. Below are a few but if you search for "P0171" you will find a lot more information on it.
P0171 finally fixed?!?!
P0171 - Lexus dealer unable to diagnose
Low idle on my 2001 gs300
P0171 finally fixed?!?!
P0171 - Lexus dealer unable to diagnose
Low idle on my 2001 gs300
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I searched the 2GS forum for "P0171" and came up with 58 threads that discuss it. Below are a few but if you search for "P0171" you will find a lot more information on it.
P0171 finally fixed?!?!
P0171 - Lexus dealer unable to diagnose
Low idle on my 2001 gs300
P0171 finally fixed?!?!
P0171 - Lexus dealer unable to diagnose
Low idle on my 2001 gs300
Using this photo as a reference it was the blue circle: https://www.clublexus.com/forums/gs-...-question.html
Which correct me if I am wrong is the "Breather Hose"?
http://www.ebay.com/itm/W0133-1739073-OES-Genuine-Breather-Hose-/231559516846?hash=item35ea05d2ae&vxp=mtr
http://www.partsgeek.com/gbproducts/...rZEaAuPZ8P8HAQ
Now a follow up question: Is there an after market option for this hose or a cheaper option than the links I have found? Could I just get a vacuum hose? I don't really have a caliper to get the inner and outer diameter sizes for the hose.
Last edited by NoShowNoGo; 07-22-15 at 03:00 PM.
#5
iModerate
Thanks Debonair, I did search and read prior to posting the question. I thought that in my case it was slightly odd to go from one code to another. But rereading the "P0171 finally fixed?!?!" thread made me look a bit harder for cracks in the hoses. Turns out there was a crack just out of sight. Its the PCV hose on the passenger side(?).
Which correct me if I am wrong is the "Breather Hose"?
Now a follow up question: Is there an after market option for this hose or a cheaper option than the links I have found? Could I just get a vacuum hose? I don't really have a caliper to get the inner and outer diameter sizes for the hose.
Which correct me if I am wrong is the "Breather Hose"?
Now a follow up question: Is there an after market option for this hose or a cheaper option than the links I have found? Could I just get a vacuum hose? I don't really have a caliper to get the inner and outer diameter sizes for the hose.
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