All "p" codes have four numbers in them. P340 doesn't mean anything. Should be Pxxx
I think the answer you are looking for is 0340 and it means that you need a new camshaft sensor, crank sensor, or timing is off on your car. The entire circuit for these sensors sends off this code, so it could also be a plug for one of these sensors. Good luck. Remember if the sensors don't fix it than they are doing their job and your cam is out of time.
Trouble code P2110 means: Throttle Actuator Control System - Forced Limited RPM
What does code 32 mean on Dodge Ram 1500 ,5.9 engine
what does the code PO222 on a dodge 5.9 mean
Trouble code P0680 means: Reserve for future glow plugs 9-12
Have the trans computer checked for codes, and ask a new question about the code you get.
Check Engine code of P0404 (EGR)
what is this code p1491 on 2003 jeep liberty
Check the trans for codes with a scanner and diagnose the code you get.
Engine speed sensor circuit malfunction.
Trouble code P0443 means: Evaporative Emission System Purge Control Valve Circuit
Trouble code P0627 means: Fuel Pump Control Circuit / Open
a 2000 dodge ram 1500 the check engine light is on and the code says torque converter and clutch and overdrive solenoid. what do you think that the problem is?