Spider - 105 & 115 Series (1966-1994)
My mechanic swapped my 1991 engine with a 1986 engine. Used the 1991 fuel injection system. Running very rich, and it seems to have an issue with the 1991 mass airflow sensor not responding properly. Should I replace it with a mass airflow sensor for a 1986 engine? If so, where's the best vendor...