Question about Chevrolet Cavalier
This code is for FTP (Fuel Tank Pressure) being too low. This can be caused from a defective gas cap. I would start here then work my way to the fuel pressure tank sensor. Check this information and visit the link in the last lines. The solution isn't just delete the code, need to check the sensor and fix the problem, if not, the code pop-up again.
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.
Symptoms: 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
Check this procedure to diagnostic and solve it: DTC P0452 Diagnostic
Hope this helps.
Posted on Mar 16, 2011
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Posted on Jan 02, 2017
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