hi, after motor change x16xel for x16xel the motor runs pretty bad, the motor control light goes off briefly at start and then on again. error codes: P0335 wrong speed signal P0340 camshaft sensor signal faulty P0351 EST line ignition coil 1+4 voltage high P0351 EST line ignition coil 1+4 voltage low P0352 EST line ignition coil 2+3 voltage high P0352 EST line ignition coil 2+3 voltage low P0400 linear AGR system P0412 secondary air intake valve voltage hoc h P0412 Secondary air inlet valve Voltage low P1405 Linear AGR position 400 & 1405 should still be from the old motor because I had just cleaned the agr 351 & 352 certainly come from the ignition plug test and pull off cables 412 – the relay I have retrofitted, had to take the other suction bridge (above) so should also not be up to date. stay 340 & 335 I checked the order of the ignition plugs again, camshafts & crankshaft sensor replaced , the cable to the camshaft sensor measured , position of the crankshaft disc , this could already be changed , this could be due to the timing belt voltage ? what can I test?