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Posted on Feb 25, 2009
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CODE PO453 evaporative emission pressure sensor High input

What could be the probable cause and recommended fix

1 Answer

Marvin

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  • Chevrolet Master 85,242 Answers
  • Posted on Feb 25, 2009
Marvin
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Joined: Jun 20, 2008
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Loose or defective gas cap is common.

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1helpful
1answer

Code po447 and po453. Likely cause? Thanks, Jim.

code p 0447 refers to evaporative emission (EVAP) system vent control---open circuit ===causes --wiring open circuit--EVAP canister purge valve---ECM
code p 0453 refers to EVAP pressure sensor ---high input===causes --wiring short to positive ---EVAP pressure sensor --ECM
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Buick rendezvous 2002 from wheels, have 2 codes PO446 PO453

code p 0446 refers to evaporative emission (EVAP) system---vent control---circuit malfunction===causes --wiring---EVAP canister purge valve ---ECM
replace the purge valve
code p 0453 refers to EVAP pressure sensor --high input ===causes --wiring short to positive --EVAP pressure sensor ---ECM
replace the sensor
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What is code po453 on my 99 chevy suburb mean??with engine light on...???

code p0453 refers to evaporative emission (EVAP) pressure sensor-- high out put === causes wiring short to positive--- EVAP pressure sensor--- ECM
I would change the sensor unless you have been messing with the wires.
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1answer

Have a 2005 f-150 5.4.having trouble with codes. p0053,p0203,p0303 and pO453. Where to start and can u fix one thing to cancel out 2 or more codes.

code p0053 refers to heated oxygen sensor (HOS) bank 1-circiut malfunction===causes --wiring --- HO2S
code p0203 refers to injector 3 circuit malfunction==causes---wiring--injector ---ECM
code p03030refers to cylinder 3-- misfire detected===causes--engine mechanical fault--wiring---ignition/ fuel system---injector---ECT/MAF sensor---ECM
code p0453 refers to Evaporative emissions(EVAP) pressure sensor--high input==causes---wiring short to positive--EVAP sensor---ECM
code po203 and po303 both have injector as possible fault but the others you will have to fix separately. I doubt an ECM fault as there would be more problems evident so check that one last as it big dollars.
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1answer

Diagnostic code p0701

P0453 means EVAP emission pressure sensor high input. Possible causes:
- Faulty Evaporative Emission System (EVAP) Pressure sensor
- Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted
- Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection.
Code p0701 means Transmission control system range/performance. Possible causes:
- Open or short transmission control system circuit
- Poor transmission control system electrical connection
- Check powers and grounds to Transmission Control Module (TCM)
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My 2000 BMW wouldn't pass the PO453 keep commjng

P0453 Evaporative Emission Control System Pressure Sensor High input, according to this, you should fix it.
__________
gm tech2
1helpful
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Po453 e150 econoline

P0453 - Evaporative Emission Control System Pressure Sensor High Input
Possible causes- Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted
- Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection
- Faulty Evaporative Emission System (EVAP) Pressure sensor
- Damaged fuel tank pressure sensor
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I have a service engine soon light on in my pontiac grand am its a 99 and the code is PO453 what could that be?

That code is for evap control pressure high. This indicates a possible faulty fps sensor. "Fuel pressure sensor"
0helpful
1answer

Have a code of po453 but my pump dose not have the sensor

Hello,

I just looked the the code up. Code is an EVAP code, Evaporative pressure sensor which is part of the emission system. The ECM is seeing high input reading and this is usually because the sensor harness is disconnected or the senor is defective.


I hope this help.

Rodney
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