With the key on, engine off, observe the TPS as you move the throttle slowly from closed throttle to wide-open throttle and back again. Most technicians are very visual people, so graphing TPS voltage allows you to take full advantage of the scan tool’s capabilities. Using live data to view TPS voltage is a good start. The first step in almost every diagnosis is to connect a scan tool to check DTCs and live data. For the remainder of this article we’ll use TP sensors to illustrate testing. In this issue, we’ll explore some techniques for testing potentiometers. Hesitations, surging, hard starting and a variety of transmission shifting problems are only a few of the issues a failing TPS or APP can cause.Īlthough they aren’t high failure items, we do need to know how to diagnose them properly, especially when they don’t set a diagnostic trouble code. ![]() A faulty throttle position sensor (TPS) or accelerator pedal position sensor (APP) can cause engine or transmission issues.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |