chiorbeq
3rd May, 2011, 10:53 PM
Hi friends,I have a big problem with a MM 4MV ECU,the upstrem lambda probe not work.I change the lambda sonde but the same problem,wiring from ECM are in good condition I mesure the continuity and short to plus and to ground and one to other wiring.I dont have ground control signal to heating element and no signal from lambda sonde.Can help me somebody to solve this problem.Thanks in advance!