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since this has been done, code is gone again. A week before that, code was coming on everyday after clearing it.I removed the fuel filter earlier to check it if its clogged, gas was nice and clear. put it back together and drove for 10 miles, turned it off to have a bite turned it on and the lights were off.
my conclusion is I am having fuel issue and 90% from fuel pump. will replace it with oem at the soonest and will report back.
Glad you go this solved! One epic struggle.After years of struggling with this code, it finally got solved by replacing the intake manifold gasket as @2001LC mentioned in one his post. i had invisible leak and gasket was shot. i recommend replacing that every 100K. oh and spark plugs was a bit loose so i replaced them with new ones.
Thank you all for your contributions
While intake manifold off, did you do any other work. i.e. starter, A.I pump, water bypass joint front and rear gaskets?After years of struggling with this code, it finally got solved by replacing the intake manifold gasket as @2001LC mentioned in one his post. i had invisible leak and gasket was shot. i recommend replacing that every 100K. oh and spark plugs was a bit loose so i replaced them with new ones.
Thank you all for your contributions
i only replaced the manifold gasket, spark plugs and i sent my Injectors to have them cleaned (they said they were dirty) only. i was going to replace the starter but i dont have an issue yet so i left it alone-labor here is not very expensive- when time comes, i will replace itWhile intake manifold off, did you do any other work. i.e. starter, A.I pump, water bypass joint front and rear gaskets?
I am very very interested in condition of the filter inside your A.I pump????
i am not sure. if you tell me where its located or pic, i can check for you.Does your LX470 have and A.I. system?
That the Air Induction (A.I.) fan blow for 90 seconds on cold start to get CATs heated faster.