94 3.4L.....new sensors all around....all AC Delco except the O'Reilly throttle position sensor which has been replaced 3 times in 4 months. I reset the computer one last time to bring the idle from 2200 RPMs back down to 950 rpms. Drove it to AC Delco...parked....got the new AC Delco tps. Put the keys in the ignition to leave.....then got a Ding Ding (pause) Ding. Do you think its just the junk oreilly tps that hadnt been replaced yet....or what does that ding sequence mean? Thanks for the input! By the way....no ses light.

 

Did you zero the tps when you installed it? The dings are normal. To zero the tps turn the key to on, press the pedal down to the floor 5 times and then turn the key back off and then turn the car on. It should be set.