X5 stalled/set codes while being inspected!

[workingonit]

Originally Posted by andrewwynn

my bet is just horrible odds of coincidence and fuel starvation.
Should I pull the fuel pump relay, or go onto other tests that may isolate/pinpoint fuel starvation?
Siphon jet? Main pump? Relay?
Is there a Foxwell test for fuel pump?

If there's a vacuum port downstream of the MAF that's where to spray some start fluid but just key on/ key off and that will prime fuel and poke the shraeder valve with something pokey (i use a torx driver) with paper towel around to catch the spray.
I don't see a vacuum port until back at the F-shaped fitting

I could spray start fluid at that point, or loosen the rear clamp on the MAF-to-intake hose, and squeeze the thin tube into the system there.

I will check the Schrader valve for pressure, tomorrow. I'll relieve the pressure, then see if cranking will restore it.
Check EWS for errors if it's not happy you'll get no fuel. Usually this only happens if the car doors long enough for the battery to go flat but rule it out.
After I cleared all codes, the EWS code didn't reappear.

Call AAA; they should reimburse for tow, my insurance does.
I have a receipt, I'll let my CFO handle that.[/I]


–awr–

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My first instinct is to fire the parts cannon at it, but I can't afford to do that these days.

I'm leaning toward fuel starvation, not air or spark, but surely the ignition didn't fail when the inspector plugged his computer in, and wouldn't the DME show (and retain) a code for that?

At first, before even scanning for codes, I thought the inspector's "plug" may have temporarily shorted some pins in the OBD port, but since my Foxwell had no problem, that couldn't be the case?