Knock sensor issue.
Lexus Test Driver
Joined: Apr 2008
Posts: 1,058
Likes: 126
From: Illinois
my 2c:
We are all going by hunches. Lexus Master tech (with the electronics as his major) has the distinct advantage of knowing what part fails.
But, nothing is based on measurements.
I would say just scope the signals and overlay over each other to see if the ECU is getting the right signal [lot easier as we know that one is good].
Salim
We are all going by hunches. Lexus Master tech (with the electronics as his major) has the distinct advantage of knowing what part fails.
But, nothing is based on measurements.
I would say just scope the signals and overlay over each other to see if the ECU is getting the right signal [lot easier as we know that one is good].
Salim
CL Community Team
Joined: Apr 2001
Posts: 16,557
Likes: 1,385
From: Austin, TX
Poor choice of words on my part. I should have stated "where is the evidence?" or show me the data.
That can be verified by sound burst imaging of voltage from the sensors by using oscilloscope.
Salim
That can be verified by sound burst imaging of voltage from the sensors by using oscilloscope.
Salim
Driver School Candidate
Joined: Jan 2019
Posts: 16
Likes: 2
From: PA
we need to know if you have continuity between ECU pin and female of connector. If we don't that's our code. If we do and our splice is good then the ECU is bad, nothing else
Last edited by bobbirkel; Jan 7, 2019 at 04:06 AM.
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Racer
Joined: Oct 2009
Posts: 1,298
Likes: 323
From: nj
You're in the wrong forum.
Did you check the connectivity from the ECU to the harness connector?
There is a post in this forum on how to splice the signal from the "good" sensor to feed both bank 1 and 2 inputs at the ecu.
No idea if the wire colors and ecu connectors are the same for the es300 though. You should search the forum for your vehicle.
Did you check the connectivity from the ECU to the harness connector?
There is a post in this forum on how to splice the signal from the "good" sensor to feed both bank 1 and 2 inputs at the ecu.
No idea if the wire colors and ecu connectors are the same for the es300 though. You should search the forum for your vehicle.
1st Gear
Joined: Oct 2022
Posts: 1
Likes: 0
From: Mures
the problem came(I think) after changing the timming Belt with Walter pump. Other simptomphs are the engine is running hot despite everyone telling me it s normal but after a couple of minutes you can t touch the engine...Water temp everything ok and also changed everything related to Water circuit...not sure what to do anymore...
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