[bloup69]

i have a 1983 mustang with a 3.8 232 ci v6 and im trying to fix the vacuum problems with the car and i can not find the vaccuum calabration number for the car and the shop refrence material shows eight or nine diffrent ones help would be greatly be appericated thank you

[C J]

i show 4 possibilties. unless the car was first sold in california or in a high altitude region (ie. denver) it narrows to 2.

3-14A-R0 --- has an electric solenoid for the ACV [Air Injection(smog pump) Control Valve]

3-14A-R04 --- does not have a soleniod for that valve.

the diagrams follow: