I have a 1993 S10 4.3L z motor. When i ran the codes for my truck i got a 43 code telling me to check the knock sensor circuit. so i replaced the side knock sensor pig tali connector cause it was crack in 4 spots. that didnt help my truck start. Now in gettin codes 33, and 34 for my MAP sensor, and code 22 for my TPS. the thing is i dont know exactly where either of those to are on my motor.


Can any one help? Anyone got pix?

 

The TPS sensor is on the throttle body while the MAP sensor should be located on the intake manifold.

 

thanks for that. i changed the map today the computer isnt giving me nemore codes but it still wont start

 

Why did you replace it? Because of the codes? Did you test the wiring to make sure that it had continuity from point A (the sensor) to point B (the ECM)?