converting a 1990 4 cylinder notch....is the mass air harness for that year specific or the same as other years? i know one of the years the harness had 2 plugs to the dash harness and the other years had 1 plug to the dash harness...thanks in advance
You need a 90 engine harness for it to be a direct swap. Any other year and re-wiring will be needed..
The 90 harness and 89 harness look very similar. They both have Black & Grey plugs they attacth to the dash harness. But the 90 hanress will have white plugs for the air bag sensors.