Your chart shows an output of .916V and 11.1AFR, which is rich isn't it?
Well that would explain the engine laying over, but now I have no idea why it's going lean, but do know why it's pulling timing and commanding the bypass open. Fuel pressure is a steady 65psi all day everyday at the rail. I used my fuel pressure gauge and after checking it I removed the gauge and installed an oil pressure sender and gauge and drove around for 3 days like that. May not have been the best solution but it got the information I needed. After that test I used the signal wire that was going to the gauge and attached a micro switch under the bypass grounded one end then connected my Fluke to measure continuity so it would beep when closed. it would start to beep then I would get to about 5psi and it would open and boost would drop to 0. You would think that if the ECM saw that much air it would go dead rich. Should I log pulse width and cylinder balance?
Jeff
