99 montero LS
 

i need help to fix my montero,i changed almost everything.sparkplugs,wire,ignition coin,egr,gasket.then we found out that there is no signal going to the ignition 3 and 6.they said it the ECU and i both a used ECU with the same part number and conneted it but still giving me same problem with the signal on 3 and 6.