1995 BMW 525 no power backfire

How did you scan for faults?

[quote:434e2770e4="jmg12893"]Engine Mechanical problem
1995 BMW 525 6 cyl Two Wheel Drive Automatic 132148 miles
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diagnostic code are 12-15 or 1215 replaced mass air flow sensor, tps, crank sensor fuel pressure is 50 psi rough idle and backfires. happened while driving then brake system gave up aswell. what can the problem be. please help asap thank you.[/quote:434e2770e4] manuel by pressing pedal flashes codes flashes once then short pause then twice........ long pause once short pause then five times. dont fine a code 15 or a code 1215 os could it be code 120 and code 150 im stumped.

A back fire can pop vacuum connections off and cause rough running issues. The diagnostic method you are using can help in pinpointing component failure and I am in the process of getting that data now and will repost soon.