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      12-08-2012, 11:14 AM   #7
Some dude

Drives: E28 M5, E92 335i
Join Date: Sep 2011
Location: Northern VA

iTrader: (0)

The flow sensor is brand new. I had a failure on a different car, swapped my known good one on, and waited for this new one as a replacement. It read dead zero or intermittently, not low. Mine reads, but very low. No clogs, no debris, no scum/muck/crud in the system, it's dead clean and working.

I haven't pulled the nozzles to observe flow/spray pattern, haven't had time, yet. But from what I can discern, the pump just seems weak when pumping against no resistance. Once I put my finger over the outlet hose, it definitely does not build pressure anywhere near 150psi.
RRT Racing
E92 335i/6MT Dinan Stage 3: intercooler, oil cooler, intake, flash, exhaust, LW dual-mass flywheel.
Vishnu PWM methanol custom trunk mount, Diffsonline 3-clutch Salisbury custom diff, Ohlins Road and Track coilovers, Vorshlag camber plates, much more...
E28 M5 w/ buncha stuff, R171 SLK350