Any ideas? Put a KB 3.6 on about a week ago and it was running fine. Yesterday I was just driving normally around city streets on my way to a friends when I get the dreaded wrench light/limp mode but no check engine light. Friends place was only 2 blocks away so I continued there. When I left his house the car started up and drove normally with no warning lights on. Today I hooked up my tuner and it had 2 codes. P1000 - "obd systems readiness test not complete". P115E "Info Not Available". All I can find on that was a forum about an F150 that ended up being a dirty throttle body. My throttle body came with the 3.6 package and was brand new when it went in a week ago. I was able to clear all codes with the tuner