Problem Reports
Volvo 740
Report: Engine Stalling Due to Mass Airflow Sensor Failure
Volvo 740 Problem
Model Years Affected: 1990, 1991, 1992
Engines Affected: 2.2L 4 Cylinder, 2.3L 4 Cylinder Turbo
Average Mileage: 220,666 mi (214,000 mi - 234,000 mi)
Engine stalling/stumbling problems can be caused by a failing mass airflow sensor.
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Report #1Visitor, 1990 Volvo 740, 2.3L 4 Cylinder Turbo, 214,000 mi
RookiePoor engine performance, hard starting, rough cold idle, hesitation, touchy throttle, rich running (poor fuel economy, black soot out tailpipe). Replaced mass airflow sensor after testing it with multimeter, also a trouble code was in there.
Performance, engine response, fuel eco all better,
...BUT still hard starting when cold and no fast idle. Seems to function after 15 seconds, in closed loop mode after things toast up. Probable the engine coolant temperature sensor and oxygen sensor too <(shoot from running rich)?Flag ThisLike | 1 person likes this1 -
Report #2Bret Bodas, 1990 Volvo 740, 2.2L 4 Cylinder
MasterTo the anonymous user, before you do anything, remove fuse #1 to reset the engine module, and see how it runs. If it still runs bad, check the fuel pressure, if it's too high, you have a bad fuel pressure regulator. I don't suggest replacing those parts you mention before doing these two things. If yo have any questions, please use our Q&A.
Good LuckFlag ThisLike | 2 people like this2 -
Report #3erbesenite, 1990 Volvo 740, 2.3L 4 Cylinder Turbo, 214,000 mi
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Report #4Visitor, 1991 Volvo 740, 2.3L 4 Cylinder Turbo, 234,000 mi
Erratic idling
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