Aquamist HFS-3 and MINI Tank GB

[silhouette88]

(12-05-2011 12:18 PM)BostonR56S Wrote:  His/my stumbling is independent of the w/m working. The IDC, even if being adjusted by the ecu, is not enough to be triggering the w/m... we are talking about within 10 seconds of starting our cars. If he is romping on it out of his driveway in the morning he should be worried about more than a slight stumble lol.

(12-05-2011 12:05 PM)Buli Wrote:  @Silhouette, I was thinking about your HPFP, Meth and stumbling. The HPFP's pressure moves around with rpm on my car. I think this is normal as I am not having any issues. The ECU knows the pressure and adjusts the IDC to get the amount of fuel it needs. If your HPFP is going flaky/intermittent when cold and the pressure is lower then it should be the ECU can try to compensate for this by upping the IDC. All is good until the HFS-3 sees a high IDC and dumps lots of W/M. It would be interesting to see if setting yours HFS-3 to boost control would affect your stumbling, or even shutting it off until it is warm.

Erik is correct, it's totally unrelated to the w/m system and the system is definitely not spraying when this happens. It's a nice idea though. But I'm barely touching the throttle when this happens, and for the first 10 min or so I'm always really light on the throttle. Blake has etched the image of broken pistons in my mind.

I'm hopeful from laserguy's experience that if I'm persistent with my dealership I can probably get them to preemptively replace the HPFP.