Hello together! I have a problem with my 451 cdi, EZ 2011, 54hp. After he started to burn cooling water via the AGR cooler, I removed the cooler, shut down the AGR and have it programmed out of the control unit. To be sure, I have also renewed the cylinder head seal. Since this action, within a few days, one glow candle after the other is goodbye. Externally, they are unharmed, but have an infinite through resistance. Rzensteuergerät delivers about 4 volts and glows up to a water temperature of 50 degrees about three minutes after. Is there the error? The injectors are tested and found to be good. Control time also fits. Does anyone have an idea? Many greetings