740 L4-2.3L SOHC VIN 88 B230F (1985)
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Increase engine speed to 2,500 rpm.
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Close throttle and let engine slow down to idle speed.
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Turn ignition OFF.
After approximately 4 seconds, meter should deflect for 1 second. If no reading, check wiring continuity.
Protective screen replacement
The protective screen(s) can be replaced on air mass meter with aluminum housing, 1984 M/Y.
Description
Part No.
Qty
Screen
1357985-9
1 or 2
(as needed)
Remove lock ring and screen
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Pry out the lock ring with a small screwdriver.
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Install screen and lock ring Make sure the lock ring is fully inserted in the groove.
INSTALL
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rubber connector cover at air mass meter
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connector cover at LH control unit
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kick panel
Fault TRACINGB230F/FT 1985 M/Y-
The air mass meter for above model years has a black housing. The housing is marked with Bosch Part No. 0 280 212 007.
Connector configuration as illustrated.
CAUTION: The two types of air mass meters described in this Service Bulletin are not interchangeable.