1995 Lexus ES300
Driver
Joined: Sep 2019
Posts: 63
Likes: 0
From: California
Lead Lap
Joined: Nov 2019
Posts: 3,694
Likes: 1,102
From: Michigan
Driver
Joined: Sep 2019
Posts: 63
Likes: 0
From: California
It is very difficult to replaces 3 spark plugs behind the intake, at last, I let the repair shop to replace 6 spark plugs and O2 sensor.
Thank Arsenii, I check the old O2 sensor and see that its resistor is broken.
I reset the Check Engine ON and continue to drive and see what will happen.
Thank Arsenii, I check the old O2 sensor and see that its resistor is broken.
I reset the Check Engine ON and continue to drive and see what will happen.
Lead Lap
Joined: Nov 2019
Posts: 3,694
Likes: 1,102
From: Michigan
It is very difficult to replaces 3 spark plugs behind the intake, at last, I let the repair shop to replace 6 spark plugs and O2 sensor.
Thank Arsenii, I check the old O2 sensor and see that its resistor is broken.
I reset the Check Engine ON and continue to drive and see what will happen.
Thank Arsenii, I check the old O2 sensor and see that its resistor is broken.
I reset the Check Engine ON and continue to drive and see what will happen.
Let me know if you would have any other questions..
Driver
Joined: Sep 2019
Posts: 63
Likes: 0
From: California
After replacing O2 sensor, I see that
- With the broken sensor: OBD-2 tester show the voltage quickly fluctuate from 0.1 to 0.7V
- With the good one: OBD-2 tester show the voltage fluctuate from 0.3 to 0.5V
So I think if can not measure the sensor, this situation can help us guess whether the sensor broken
- With the broken sensor: OBD-2 tester show the voltage quickly fluctuate from 0.1 to 0.7V
- With the good one: OBD-2 tester show the voltage fluctuate from 0.3 to 0.5V
So I think if can not measure the sensor, this situation can help us guess whether the sensor broken
Lead Lap
Joined: Nov 2019
Posts: 3,694
Likes: 1,102
From: Michigan
After replacing O2 sensor, I see that
- With the broken sensor: OBD-2 tester show the voltage quickly fluctuate from 0.1 to 0.7V
- With the good one: OBD-2 tester show the voltage fluctuate from 0.3 to 0.5V
So I think if can not measure the sensor, this situation can help us guess whether the sensor broken
- With the broken sensor: OBD-2 tester show the voltage quickly fluctuate from 0.1 to 0.7V
- With the good one: OBD-2 tester show the voltage fluctuate from 0.3 to 0.5V
So I think if can not measure the sensor, this situation can help us guess whether the sensor broken
Also, you have a perfect voltage range with your new sensor, that is basically what you want to see. It means that your air to fuel ratio is good.
I check the old O2 sensor and see that its resistor is broken.
Hoe this helps and best of luck!
Driver
Joined: Sep 2019
Posts: 63
Likes: 0
From: California
After running 52 miles, the code P0510 appeared again. I will replace the throttle sensor today. Is it easy to fit the sensor with anything inside the throttle? And how to check to know it is fit good?
Last edited by anhtran; Feb 4, 2020 at 09:21 AM.
Lead Lap
Joined: Nov 2019
Posts: 3,694
Likes: 1,102
From: Michigan
Hope this helps and best of luck!
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Driver
Joined: Sep 2019
Posts: 63
Likes: 0
From: California
It is so easy to replace the TPS, disconnected the cable connector, opened 2 screws then the TPS dropped down. It seems that no torque force applying to the sensor from the inside. I put the new one at the old position, no force.
Start the engine and connect OBD-2 tester, the throttle now is measured 7.8%, not 10.2 % of the old one.
I cleared the code P0510, reset the trip and waiting what happens next.
Start the engine and connect OBD-2 tester, the throttle now is measured 7.8%, not 10.2 % of the old one.
I cleared the code P0510, reset the trip and waiting what happens next.
Lead Lap
Joined: Nov 2019
Posts: 3,694
Likes: 1,102
From: Michigan
Are you asking if the OBDII scan tool can show all the codes that your ECU has? If so, it depends on the device that you are using and on the software that is supplied with it.
Driver
Joined: Sep 2019
Posts: 63
Likes: 0
From: California
I wonder if OBDII scan tool can show all error codes or only shows only one code, and when this code is fixed, it will show another code?
Lead Lap
Joined: Nov 2019
Posts: 3,694
Likes: 1,102
From: Michigan
Lead Lap
Joined: Nov 2019
Posts: 3,694
Likes: 1,102
From: Michigan