You can find the fuse box diagram for a Mazda b2300 pickup when you do not have the manual by writing or calling the manufacturer for the original manual.
I found the owners manual for the 2003 mazda b2300 and it shows the fuses and what they are. http://www.manualowl.com/am/Mazda/2003-B2300/Manual/798
Wiring diagram for 96 Mazda b2300
how du you replace a thermostat in Mazda pickup b2300 94
go to www.drivetrain.com and find your particular vehicle
follow lower radiator hose back to engine.
start with checking the coil packs wires sparkplugs
No, this is not an interference engine.
short to ground or a blown fuse
Where is the PCV Valve on a Mazda B2300 2003
1) public library-'chilton' etc. 2) autozone.com
The Oxygen sensor is located on the manifold pipe.