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This is an emission leak code..could have cracked emission hose at back of engine or on top of fuel tank..check gas cap for corrosion or filler tube for holes
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code po 340 no camshaft position sensor signal at powertrain control module and code po344 rationality error detected for intermittent loss of camshaft position sensor circuit. hope this will help you!!!!
Most common problem causing this code is the purge solenoid. A quick smoke test will show if you have any leaks in the system. If no leaks and the fuel cap is installed properly it's the purge solenoid.
The MAP sensor and Knock Sensor are both very easily replaced. A better scanner will tell you which sensor is going bad on your transmission. An Autozone code reader will not tell you which sensor on the trans. is acting up. Most sensors on your trans. are very easity replaced as well. They just screw in and plug it. It's worth paying to get a "real" scan done. The trans. sensors are inexpensive and you can replace any other your listed sensors yourself.
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