P is power-train, and the rest of the numbers vary by car manufacturer. shoot me a message with make model and year and i can tell you what they are exactly.
EGR Valve
Trouble code P1345 means: Camshaft To Crankshaft Position Correlation Fault
Trouble code P1345 means:Crankshaft position (CKP) camshaft position (CMP) correlation
Trouble code P1345 means: Camshaft To Crankshaft Position Correlation Fault
Trouble code P1345 means: Camshaft To Crankshaft Position Correlation Fault
Trouble code P1345 means:Crankshaft position (CKP) camshaft position (CMP) correlation
A P1406 error code on a 1996 Pontiac Sunfire indicates a faulty EGR valve. This can result in poor engine performance and should be replaced immediately.
You have a problem with the EGR system, the pintle positon circuit.
As you do not list the code you are reading, it is impossible to answer your question.
Trouble code P1406 means:EGR pintle position error
p1345 means camshaft, crankshaft corelation means someone has messed with the distributor and it is not in sync with the crankshaft.
Code P1345 is for the crankshaft or camshaft position sensor.