Question about 2000 Oldsmobile Silhouette
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Posted on Jan 02, 2017
yes the pressure sensor in mounted in a rubber grommet on the top of the fuel tank. it could be the sensor but the only way to know for sure is have the dealer do a evaporative emissions fuel tank pressure test, they have the special tools to do this, outside shops do not. Have u tried a new gas cap, they can leak and cause the problem, in fact that is very common.
Posted on Mar 07, 2009
SOURCE: My 99 alero has emission
P0452 - Evaporative Emission Control System Pressure Sensor Low Input.
An excessively low voltage from the sensor is sent to ECM.
The EVAP control system pressure sensor detects pressure in the purge line. The sensor output voltage to the ECM increases as pressure increases. The EVAP control system pressure sensor is not used to control the engine system. It is used only for on board diagnosis.
- Engine Light ON (or Service Engine Soon Warning Light)
- The EVAP control system pressure sensor circuit is open or shorted
- EVAP control system pressure sensor may be faulty
- Retight gas cap - Replaced EVAP Control System Pressure Sensor
Hope this helps.
Posted on Jun 02, 2011
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