I just finished installing the Edelbrock E-Force on my 2005 GT. It went pretty easy for the most part, but I get to the big moment when I'm going to start it up... and I've got codes BEFORE I even crank it over. I followed the installation manual, step by step just to be sure I didn't miss anything. That means I uploaded the tune BEFORE I started the install. Once everything was done, I popped in the key, turned it to ACC, and I immediately have a check engine light and it is in failsafe mode... again BEFORE I EVEN CRANKED IT OVER! I checked the codes and I have P2104, P2107, and P2110. They are all related to the TPS. I've pulled the throttle body a couple of times to check everything. I've checked the wire extenders that came with the kit for continuity, and everything checks out. The kit had a new TPS sensor, and I've tried both it AND the old one. I've tried clearing the codes. I've tried disconnecting the battery. But everything keeps coming up.

When I pulled the throttle body off, you have to switch some of the old components over, and clock a spring. I've done that. And checked it twice.

I have two tires that are itching to re-stripe the road out front of my house, but Edelbrock tech isn't open until Monday!!!! Can anyone help?

 

Problem solved. After checking all of the wiring connections and continuity of the wire extenders, I figured the issue had to be with the tune. So I reinstalled the new TPS that came with the kit, flashed everything back to stock, cleared all codes, and disconnected the battery. A little while later I reconnected the battery and reinstalled the custom Edelbrock tune. This time it didn't go into failsafe mode and didn't throw any codes. It started right up and runs great. Well... mostly great. It is strong and feels good, but I've got a miss in higher RPMs at WOT. That is the next thing to check out...