AGP Wastegate Actuator Instructions - The Be-All End-All
I installed my WGA, and now I get a Check Engine Light. What do I do now?
If you have stage 0, you will need to remove the red TIP sensor line that goes from the upper intercooler hose to solonoid #1. Completely remove this line from the car and cap the nipple that is left on the upper intercooler hose. If you have stage 1 or 2, you do not need to do this.
NOTE FOR 2005 USERS. You may get a P2074 code with stage 0. The first step is to make certain your vehicle has had the reflash 18-042-04 performed at the dealer. If you have already removed the red line and you have had the reflash completed at the dealer, you may need to purchase stage 1 to rid yourself of all check engine lights for your 05.
How do I get rid of PTB (Part Throttle Boost)?
Don't let someone sell you a spring "upgrade" for the wastegate by claiming it's going to hold more boost at redline and eliminate PTB. It will not, or we would sell it.