New Regina pump with beer cozy removed compared with AC prepump and Bosch main pump from 83 B23F. I purchased the Regina pump after a short diagnostic session using an ammeter in series with the pump. The ammeter would fluctuate between about 1A and something above 5A. When it sank to 1A the idling car would die. Measuring the fuel pressure at the rail, crudely with a tire gauge, the same effect was seen - sometimes 25-30 lbs, other times about 5 lbs. This exercise is being done on a '92 940 with 142K miles.
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