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Code po452 2000 chevy blazer pressure sensor switch low

Where is evap cantister at on 2000 chevy blazer

Posted by Anonymous on

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Posted on Jan 02, 2017

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taran_2005
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SOURCE: on a 1998 chevy blazer

Hi,

P0452 indicates a low voltage signal from the fuel tank pressure sensor, which converts fuel tank pressure into a voltage signal sent to the ECM.

Evaporative Emission Control System Pressure Sensor Low Input indicates a low voltage problem in the Fuel Tank Pressure Sensor (FTPS). What the fuel FTP sensor does is convert fuel tank absolute pressure into electrical signals and inputs the signal to the ECM/PCM, (Computer). First thing to do is make sure the gas cap is good and tightened properly. Given the gas cap's age, you may just want to replace it as the seal may be dry and leaking which would give you a low pressure signal. Then check the vacuum lines and wiring at the FTPS (Location-Fuel Tank) to be sure they are good, clean and tight. Barring a wiring problem it can be a bad FTPS.

Regarding the noise from clutch, it seems to be a bearing issue or the clutch plate/pad might have worn.

Hope i helped.

Thanks for using ' Fixya ' and have a nice day!!


Posted on Jul 11, 2009

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SOURCE: emission failure on 2001 chevy blazer 4.3-

your vehicle has a vent valve solenoid located on the evap canister under the back end of the vehicle. You most likely have a bad vaccuum line going to the evap caniser. Have the vehicle smoke tested to verify. If no leaks are found replace the vent valve solenoid

Posted on Oct 25, 2012

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2 Answers

Gm po453code


The 452 is low input and the 453 is high input.The EVAP system is completely separate from the fuel system, so it has nothing to do with the regulator.
If you follow your fuel lines, you will find three lines off of the tank: 1 is the fuel supply line (from the pump to the engine), 2 is the fuel return line (from the regulator to the tank), and 3 is an EVAP line. As the tank breathes (so you don't a vacuum or pressure built up in the tank), the EVAP systems job is to make sure the gasoline vapors from the tank end up going to the intake so they can be burned. The pressure sensors are there so the computer knows if the EVAP system is doing its job correctly.
Short Answer: The sensor measures pressure inside the tank. It tells the PCM there is a leak if it sees one.

Click the link below for step by step troubleshooting:--

http://carrepairworld.blogspot.com/2016/06/2001-chevrolet-blazer-p0453-code.html

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This will help.Thanks.

Jun 11, 2016 | 2001 Chevrolet Blazer

1 Answer

Where is evap cantister on a 2000 chevy blazer


They used to be in the engine compartment
near the front--on S10

I'm driving an old 1984 --so things may have changed,
but they only go to 2004 then stop making them

Nov 29, 2012 | Chevrolet Blazer Cars & Trucks

1 Answer

Failed 2001 chevy blazer code 452


(PO452 general motors code, low evaporative emmisions control input) Believe it or not it could be that the gas cap is not on tight or needs to be replaced. Other than that: vacuum line or evap. canister leak.

Nov 02, 2012 | Cars & Trucks

1 Answer

Emission failure on 2001 chevy blazer 4.3-


your vehicle has a vent valve solenoid located on the evap canister under the back end of the vehicle. You most likely have a bad vaccuum line going to the evap caniser. Have the vehicle smoke tested to verify. If no leaks are found replace the vent valve solenoid

Oct 25, 2012 | Chevrolet Blazer Cars & Trucks

2 Answers

Abs light on with a p0452 code


ABS -- is one problem
Possible Wheel Speed Sensor ,but
you can't guess Use codes & other
resouces to diagnose

EVAP System Code PO452 -- may be a
Pressure Sensor issue ,all I have is Low Input
I assume that means high resistance in the solenoid coil,
thus low voltage detected
Again- need scanner & evap smoke machine ,to check out,
unless your guy shot guns common items & gets lucky at
your expense,changing parts

Aug 04, 2011 | 2000 Chevrolet Blazer

1 Answer

I recently purchased this 1999 Chevy Blazer and it wont pass inspection because the OBD2 Diagnostic trouble code states it's problem is, code P0440-Evaporative Emission System. The guy said it looks like...


The evaporative leak detection diagnostic strategy is based on applying a vacuum to the EVAP system and monitoring the vacuum decay rate. The VCM monitors the vacuum level via the fuel tank pressure sensor input. At an appropriate time, the EVAP purge solenoid and the EVAP vent solenoid turn ON, allowing the engine vacuum to draw a small vacuum on the entire evaporative emission system. If a sufficient vacuum level cannot be achieved, a large leak or an EVAP system malfunction is indicated.

The following conditions can cause this problem:
* A disconnected or malfunctioning fuel tank pressure sensor
* A missing, malfunctioning, improperly installed, or loose fuel cap
* A disconnected, damaged, pinched, or blocked EVAP purge line
* A disconnected or damaged EVAP vent hose
* A disconnected, damaged, pinched, or blocked fuel tank vapor line
* A disconnected or malfunctioning EVAP purge solenoid
* A disconnected or malfunctioning EVAP vent solenoid
* An open ignition feed circuit to the EVAP vent or purge solenoid
* A damaged EVAP canister
* A leaking fuel sender assembly O-ring
* A leaking fuel tank or fuel filler neck

Any of the above conditions can set a DTC P0440.

Mar 08, 2011 | 1999 Chevrolet Blazer

2 Answers

Codes po452 and po453


both codes point to the fuel tank evap pressure sensor. High and low input faults.
Try clearing the codes first and seeing if they come back

You may have a vacuum leak, cracked or open vacuum line or faulty sensor.

Dec 21, 2009 | 2001 Chevrolet Blazer

1 Answer

On a 1998 chevy blazer zrz 4 x 4 i get the code of p0452 evap emmission control system pressure sensor low what does this mean? how do i solve this problem? also, when i push in the clutch it makes a...


Hi,

P0452 indicates a low voltage signal from the fuel tank pressure sensor, which converts fuel tank pressure into a voltage signal sent to the ECM.

Evaporative Emission Control System Pressure Sensor Low Input indicates a low voltage problem in the Fuel Tank Pressure Sensor (FTPS). What the fuel FTP sensor does is convert fuel tank absolute pressure into electrical signals and inputs the signal to the ECM/PCM, (Computer). First thing to do is make sure the gas cap is good and tightened properly. Given the gas cap's age, you may just want to replace it as the seal may be dry and leaking which would give you a low pressure signal. Then check the vacuum lines and wiring at the FTPS (Location-Fuel Tank) to be sure they are good, clean and tight. Barring a wiring problem it can be a bad FTPS.

Regarding the noise from clutch, it seems to be a bearing issue or the clutch plate/pad might have worn.

Hope i helped.

Thanks for using ' Fixya ' and have a nice day!!


Jul 11, 2009 | Chevrolet Blazer Cars & Trucks

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