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Old 06-21-2006, 05:24 PM   #1
jblaine
Scooby Guru
 
Member#: 8512
Join Date: Jul 2001
Chapter/Region: South East
Location: St. Pete, FL
Vehicle:
2002 WRX chassis...
stage-infinity.com

Default Hydra: Car dies momentarily

So, here's a fun one.

A week or two ago, I shifted from 2nd to 3rd, let out the clutch, and started pressing the gas in "around town" mode. No boost, just tooling around. The dash lit up like a Christmas tree (loss of electrical or ECU control) for .2 seconds, the car fell on its face, and then continued right on. I glance at my radar detector which shows voltage. Fine.

"Ummm... thaaaaat was cool."

Take the car out and datalog a bunch of conditions. Nothing wrong.

Check all grounding spots. Fine. Tight.

"Maybe it was a fluke..."

A few days later, I am idling in a parking space for 2-3 minutes. Car shuts off. No stumbling before shut off, nothing. Fine --> OFF.

"Sweet."

A few days later, I am idling at a stop light for 2-3 minutes. Car shuts off. No stumbling before shut off, nothing. Fine --> OFF.

"Yay, this is great."

Last night I datalogged the whole way to my parents' house for a visit, as usual. And all the way back. For the sake of the datalogging/goal at hand, I had 'Closed Loop' turned off completely. Everything ran perfectly fine. I logged no abnormalities in any of the maps or conditions.

So, I am going to keep Closed Loop off based on the wild assumption at this point that my WB02 sensor is screwed and causing trouble. It doesn't really make any sense though, because I use Closed Loop between 2000-3200RPM. Idling is 950RPM and the car still died those 2 times...

Let me hear any ideas.
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