240 L4-2127cc 2.1L SOHC B21F (1982)
The air mass meter for above model year has an aluminum housing. The housing is marked with Bosch Part Number 0 280 212 002. Connector
configuration is as illustrated.
CAUTION: There are two types of air mass meters (83-84) and (85-88), they are not interchangeable.
CHECK GROUND(S)
1.
Connect an ohm-meter between terminal 36 and ground, and between terminal 6 and ground.
Meter should show less than 1 ohm resistance in both cases. Check wiring continuity if value is higher.
CHECK VOLTAGE SUPPLY
1.
Turn ignition ON.
2.
Connect a volt meter between terminal 9 and ground.
Meter should show battery voltage. Check wiring and system relay if lower than battery voltage.
