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Which of 2 sensors top or side of airflow box on 2000 Toyota Avalon should be replaced for code p0171?
there is only one sensor on the airbox. its flat on top with 2 Phillips screws holding it in place and a 5 or 6 wire plug. the other thing has vacuum hoses to it and is a switching valve. ask for the mass airflow sensor when you go to buy the part. If you still cant identify it, call the dealer, ask for the price and part number for a MAF sensor, then match that number to the one on the sensor itself.
the biggest problem I have with trying to fix a code P0171 with a MAF sensor is you could pay the $90.00 or whatever and have it not fix the problem. make sure its reading too low at idle before replacing it. check it on the data list of a scan tool, it should be between 2.5 and 3.5 gm/sec. if its lower, make sure the air snorkel between the airbox and throttle body is secure and not leaking. if that's ok replace the sensor. if its in range AFR bank 1 needs to be compared to bank 2. if its reading a higher voltage or isn't as lively at say 2500 rpm replace AFR bank 1. (its the first sensor in the exhaust by the firewall NOT THE ONE BY THE RADIATOR!
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Knock sensor location on a 1996 Toyota Avalon?
The "knock sensors" for the Avalon 3.0 are facing the firewall on the engine block just below the cylinder head ,their are two knock sensors .
How many 02 sensors on a 2000 Toyota Avalon?
The 2000 Toyota Avalon typically has four oxygen (O2) sensors: two upstream (pre-catalytic converter) sensors and two downstream (post-catalytic converter) sensors. These sensors monitor the exhaust gases to help optimize engine performance and reduce emissions. Always refer to the specific vehicle's service manual for precise information.
How do you replace the knock sensors on a 1996 Toyota Avalon?
To replace the knock sensors on a 1996 Toyota Avalon, first disconnect the battery to ensure safety. Remove the intake manifold to access the sensors located on the engine block. Disconnect the electrical connectors from the old sensors, unscrew them, and install the new sensors. Finally, reassemble the intake manifold, reconnect the battery, and start the engine to check for proper operation.
When do you change the timing belt on 2007 Toyota Avalon?
Dealer says it never needs to be replaced.
How do you replace knock sensors on a 2000 Toyota Avalon?
To replace the knock sensors on a 2000 Toyota Avalon, first disconnect the negative battery terminal to prevent electrical issues. Then, remove the intake manifold to access the knock sensors located on the engine block. Disconnect the wiring harness from the old sensors, unscrew them, and install the new sensors, ensuring they are properly torqued. Finally, reassemble the intake manifold, reconnect the battery, and check for any error codes.
When was Toyota Avalon created?
Toyota Avalon was created in 1994.
How do you replace the third brake light in your 2007 Toyota Avalon?
The third brake light on a 2007 Toyota Avalon is replaced by first removing the rear, retaining screws. The wiring harness can then be disconnect and the light bulb removed.
Where are the oxygen sensors on a 2008 Toyota Avalon?
On a 2008 Toyota Avalon, there are typically four oxygen sensors: two upstream (pre-catalytic converter) and two downstream (post-catalytic converter). The upstream sensors are located on the exhaust manifolds, while the downstream sensors are positioned after the catalytic converters. To access them, you may need to raise the vehicle and remove some components for easier access. Always consult the vehicle’s service manual for precise locations and procedures.
Can you clean a map sensor Toyota Camry?
Usually map sensors have to be replaced and cannot be repaired.
How do you repair the igition coil on a 1998 Toyota Avalon?
Ignition coils are not normally repairable as they are sealed units. They must be replaced.
Where is the fuse for a Toyota Avalon 95?
There are three fuse panels in the Toyota Avalon 95
Does a Toyota Avalon have a carborator?
no, the Toyota Avalon is a EFI (electric fuel injection) engine
