Question about 2001 Toyota Tacoma

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P0450 trouble code

Ant one have any ideas what I should replace first?


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Your vehicle has whats called a OBDII diagnostics setup. Just google "2001 Toyota Tacoma, OBDII trouble codes". You should get a whole page full of responses. (Type in exactly what is in exclamation marks above) Once you have codes, scroll down to PO450. Remember, whatever sensor/circuit it refers to, means there is a problem with the circuit, the sensor, ie..wiring, bad connector, bad ground, short, open, and so on. Dont just change out part without first examining the wiring and connectors first. Common sense goes a long way with this sort of troubleshooting.


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Posted on May 20, 2009


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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1 Answer

Where would i find the sensor for code p0450

P0450 - Evaporative Emission Control System Pressure Sensor Malfunction. Gas tank.

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I scanned and got a code p0450 is that electrical

P0450 Hyundai - EVAP Emission System Pressure Sensor

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that is an emmisions code and toyota did fix for free before but i doubt it will still be covered. could be purge valve or canister or gas cap etc

Mar 28, 2014 | 1997 Toyota Camry

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Obd code p0450

Trouble Code: P0450

Fuel Tank Pressure Sensor Circuit Malfunction

Possible Causes:

FTP sensor circuit is open or shorted to ground.FTP sensor ground or power circuit is open.FTP sensor is damaged or has failed.PCM has failed.Here's a link to the part,must be made of gold.

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OBD1 code p0450

code p0450 = evaporative presure sensor out put valve

Aug 18, 2012 | Chevrolet Cars & Trucks

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P0450 code on a honda civic

Here is the definition.

The Code P0450 indicates that the Evaporative Pressure Sensor output value is not changing during the EVAP Monitor test and/or the operation of the vehicle. This code uses "two trip" logic, which means that the fault condition must be present during two successive cold starts and vehicle operation.
The sensor is mounted in the top of the gas tank near the sending unit. You would need to test the pressure sensor.

Aug 10, 2012 | 1998 Honda Civic

1 Answer

I have codes po441,p0450 on my 1997 lexus es 300 can u help and where are they

P0441 = Evaporative Emission Control System Incorrect Purge Flow.
Trouble Area(s)
Open or short in VSV circuit for VAP.
Open or short in VSV circuit for vapor pressure sensor.
Open or short in vapor pressure sensor.
VSV for vapor pressure sensor.
Vapor pressure sensor.
Vacuum hose cracks, holed blocked, damaged or disconnected.
Charcoal canister cracked, holed or damaged.
P0450 = Evaporative Emission Control System Pressure Sensor Malfunction.
Trouble Area(s)
Open or short in vapor pressure sensor circuit.
Vapor pressure sensor.

Jul 29, 2011 | Lexus ES 300 Cars & Trucks

3 Answers

Hello I have a 1997 toyota Camry with 182000 miles on it. When I started my car my check engine ligth stay on. I went to Auto Zone to get it troubleshooting and a code P0450 came up it also states...

P0450 has to do with the EVAP emissions system, specifically it is a code for the vapor pressure sensor not reading correctly. It could be the charcoal canister, the pressure sensor, a bad VSV, or a bad vacuum line. There are literally several pages worth of diagnostic information to help trouble shoot this code. This is not a do it yourself friendly deal.

If I remeber correctly there was a recall on the charcoal canister but your out of the mileage warranty. I do know that if everything checks out and a problem cannot be found than your suppose to look at the number on the computer it may need to be replaced if it matches the numbers that have been updated to resolve this issue.

Sep 28, 2010 | 1997 Toyota Camry

1 Answer

Have a code P0450

P0450 Evaporative Emission Control System Pressure Sensor Malfunction

replace sensor

Jun 16, 2010 | 1998 Toyota Camry

2 Answers

Toyota T100 OBDII Code P0450 - Pressure Sensor Malfunction

P0450 deals with the Vapor Pressure Sensor, in the fuel tank vapor circuit. Buying a charcoal canister would not cure this.
Go to a Toyota dealer and tell the parts guy that you want a
Vapor Pressure Sensor.
It is on the vapor line, before the charcoal canister.

After you replace the sensor, remove the EFI fuse to clear the code.

I hope that this answers your question.

Please rate my assistance level with a FixYa rating
(4 blue diamonds)

Feb 10, 2009 | 1997 Toyota T100

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