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Code p0442 evap small leak
2002 Saturn SC1

Code P0442 Evap small leak

(2002 Saturn SC1)
Replaced gas cap OEM, suggested to replace Fuel Tank Pressure Sensor. Difficulty and cost?
2 answers & 1 comment
Popular Answer
on June 10, 2017
Why replace the sensor until it has been proven defective? .. Normally a 'smoke test' will locate any leaks in the system then appropriate repair can commence.
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on June 10, 2017
Smoke test completed, they didn't find any leak. They replaced coolant temperature sensor and cleared code. Code came back within two days, I then replaced gas cap and rechecked code at Autozone. Thanks for replying.
General Diagnosis
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on June 10, 2017
Why replace the sensor until it has been proven defective? .. Normally a 'smoke test' will locate any leaks in the system then appropriate repair can commence.
Sign in to reply
on June 10, 2017
Smoke test completed, they didn't find any leak. They replaced coolant temperature sensor and cleared code. Code came back within two days, I then replaced gas cap and rechecked code at Autozone. Thanks for replying.
on June 11, 2017
I'm guessing they didn't look hard enough around a certain couple valves and solenoids under the car. Small leaks are super hard to find, they'll need to really REALLY look
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