The engine may fail to start due to an electrically shorted sensor. Some of the sensors may internally short and not blow any fuses. A technician may find no spark and no operation of the fuel injectors in the diagnosis. One way a technician may isolate the defective sensor is by disconnecting sensors one by one to see if the engine starts.
Crank but No Start Condition and No Spark on Mazda B2300
Average mileage: 124,113 (95,000–144,000)
Engine affected: 2.3L 4 Cylinder
17 people reported this problem
1994 Mazda B2300 - 2.3L 4 Cylinder 133,339 mi, Visitor
tries to turn over but won't crank been having problem since oil change usually if let set for hour or so will crank right up
1995 Mazda B2300 95,000 mi, Visitor
CRANKS BUT WILL NOT START
I have replaced plugs,plug wires,coil, coilwire harness. checked all of the fuses,& relays, Still not getting any spark.