Snipersking

Hi every one

I have a trailblazer 2007 the car acting so strang first it hardly start first time in the morning Rpm goes up and dawn , scan it and through a Maf sensor code and a coolant temp and short trim fuel the clear them all.
The code never came again except the coolant temp code, the car runs very fine until today it didn't start at all crank but didn't starte , then scan it again still getting the coolant temp code and I managed to get these data

Cmp command 0%
com sol ckt short. Fault
Com sol ckt open test status Fault
Cpm sol ckt short volts test status. Fault
Desired Cmp angle 0 deg
Cmp angle 0 deg
Cmp Variance. 0 deg

Engine speed 618 Rpm
Cmp sensor 616 Rpm
Cmp active counter 200 counts

Desired idle speed 608 Rpm
Ect sensor. 86 c
Iat sensor. 49 c

Maf sensor 5.56 g/s

Ckp. Sensor. 628 Rpm
Ckp. Resyncs Counter 3 counts
Ckp. Active counter 200 counts
Cmp sensor 620 Rpm
Cmp active counts 7 counts
5 volt Reference 1 5 v
5 volt reference 2 5 v
5 volt reference 1 circuit status. Ok
5 volt reference 2 circuit status knock retard 0 deg
Total knock retard 0 deg

Ok the car start again with very bad smell then went ok no smell

Please help me out with this one