Thanks BoostedRacerDad, gonna check there first right after work... I did remove that bracket and put it back on, that might be the problem with the ELD, anyone have anything why it would throw the TDC code? I thought it was built into the Dizzy, but the car was running fine before head gasket was removed. Even if it was a little od Top dead center on the block, i didnt think it would throw that code.