Does a 1994 Buick Skylark have a throttle position sensor or a crank sensor?
It has both.
You have a 93 Buick Skylark with the 4 cylinder It codes throttle position sensor changed it twice changed idle air sensor and a used throttle body runs worse still codes throttle position sensor?
Will an engine out of a 1993 Buick Skylark 3.3 engine fit into a 1994 Buick Skylark 3.8 engine without any problems?
It will physically bolt in--HOWEVER--the 3.8 uses a separate cam position sensor while the 3.3 incorporates it into a single sensor unit with the crank position sensor, so the wiring harness is different. Also--the computer calibration is different owing to the difference in displacement. Unless a donor car is available with the correct wiring and ECM/ECU and one has the knowledge to do this--it is NOT recommended.
Your transmission shifts too soon and will not go into passing gear on your 95 Buick Lesabre so how can you fix this problem?
Remove the air cleaner and the air supply from the top of the throttle body. Have someone step inside the vehicle and slowly press and release the throttle while the engine is off. Watch to see what moves. The throttle butterfly is operated by the cable from the accelerator pedal. Notice that the cable goes over a sprocket that moves the throttle. On the OPPOSITE side of the throttle body should be a black plastic…