What does P1345 mean for a 02 trailblazer - 2002 Chevrolet TrailBlazer

http://www.obd-codes.com/trouble_codes/

scroll down to your code and open code. gives symptoms and possible fixes

The P1345 means SGC (Cam Position) sensor circuit malfunction/crankshaft position-camshaft position correlation
P0300 means random/multiple cylinder misfire detected

mpps ecu chips

Give me some more information about this problem. May be i can help.

dammed electronics ,bane of my life so your not the only one and in cases like this i can only suggest you bite the bullet and take vehicle to a main dealer .sorry i know this isnt the answer your looking for but from experiance certain things on modern motors you cannot do your self

beleive it or not changing the oil if dirty will solve this code, also found that connector gets oil in it and that also makes p1345 code turn on, open connector and look for oil in it,look at sensor and actuator plugs for oil,the main plug connector is the actuator plug it fills with oil and makes contact between pins setting p1345 code, hope this helps.

Most likely the timing has jumped,or the cam sensor is bad.