Ok. I first got a new TPS sensor from Ebay and replaced it. My car idled fine but yet the CEL was still lit. I replaced my VSS and the CEL is still lit. I found out what code it's throwing out a Code 7. It's still saying my TPS is bad. I replaced it twice with one's I bought off of Ebay. What should I do now? Is there a special way of installing the TPS? If so, please teach me. Is there any chance that my ECU is bad?