yes a 1993 4.3 liter motor can have (cpi) centralport injection) (spyder injection) if your blazer has a (w) has it 8th vin letter then yes it does but if it has a (z) from a 8th letter on your vin number iz a (tbi) throttle body injection
knock sensor
any from 88 to 98
knock sensor
probably the ignition switch if you are refering to the starter solenoid.
Owners manual, positive.
I have a 92 s10 blazer and my code 43 was fixed by replacing the knock sensor. so maybe check the knock sensor and the wiring from that to the ECM.
43
The Spider #43 patch was put on the jerseys to commemorate fellow player Carl "Spider" Lockhart. He was a CB who played his entire NFL career with the Giants. After he died at age 43 of lymph cancer, the Giants honored him with this patch.
System Normal
Spider One is 43 years old (birthdate: August 25, 1968).
it might be a broken motor mount. there are two mounts located towards the bottom of the left and right side of the engine make sure you are getting spark to all cylinders. (check for Misfiring)
Spider Riders - 2005 Fly no Longer 1-43 was released on: USA: 25 February 2007