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1999 Acura Integra please help with error code OBD-2 / PO45

Tiny
JIMMYL645I
  • MEMBER
  • 1999 ACURA INTEGRA
  • 4 CYL
  • FWD
  • MANUAL
  • 68,000 MILES
Hi I notice my check engine like was on earlyer this week after returning from the hospital. I took it a near by oil change place to have the code pulled up.

it says P0450- "fuel take pressure sensors too high for the application you are running" I believe-

does anyone know where the problem is occuring from or can pin point a good guess, since the oil change place wasn't any help at all.

thanks in ADVANCE, any help is greatly appreciated
JL
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Sunday, January 11th, 2009 AT 6:58 PM

1 Reply

Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
P0450 Evaporative Emission Control System Pressure Sensor Malfunction

Circuit Description
The vapor pressure sensor, VSV for canister closed valve (CCV) and VSV for pressure switching valve are used to detect abnormalities in the evaporative emission control system. The ECM decides whether there is an abnormality in the evaporative emission control system based on the vapor pressure sensor signal. DTC P0450 is recorded by the ECM when the vapor pressure sensor malfunction.

Detecting Condition
10 seconds or less after engine starting condition vapor pressure sensor fixed value continues for fixed value or more: (2 trip detection logic)

Trouble Area
*Open or short in vapor pressure sensor circuit
*Vapor pressure sensor
*ECM


https://www.2carpros.com/forum/automotive_pictures/55316_integravacuum1_1.jpg



https://www.2carpros.com/forum/automotive_pictures/55316_integravacuum2_1.jpg

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Sunday, January 11th, 2009 AT 10:21 PM

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