Subject	The FSM keeps pointing to fuel pressure regulator. It
Posted by	ZTicket(Dallas) on October 28, 2014 at 9:56 AM
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In Reply To	when you turn the key, the pump only runs for a few seconds posted by aliaZ on October 27, 2014 at 08:22 AM
Message	never goes as far as pointing to FPCU, or Fuel Pump, much less, in-tank fuel pump damper. BUT, symptoms are: it's pressurizing with the initial key on, I hear the pump...then it loses the pressure when the pump sound goes away. The FSM says the fuel pressure regulator is to be replaced if the pressure doesn't stay at 37psi. Same answer for symptoms of loss of power under cruise throttle, loss of power while turning. My car does both of these things. Since the fuel pressure regulator is the easiest to access/least expensive, I'm going to replace the part and see if the car still fails.
Follow Ups	The Success of Failure. The Z finally failed when I - ZTicket(Dallas) 12:09:50 10/26/14 the dragging starter might be a clue - aliaZ 13:54:11 10/26/14 Where is the controller located? (n/m) - JMartz 14:03:32 10/26/14 Behind headlight adjustment tools (n/m) - ttz'in (NorCal) 15:09:46 10/26/14 Good point. I also thought of a partial HL situation via - ttz'in (NorCal) 14:04:17 10/26/14 Did a pressure test of lower intake manifold before - ZTicket(Dallas) 14:21:08 10/26/14 Or is the FPCU breaking down and cutting power ? - ttz'in (NorCal) 15:08:39 10/26/14 My "guess" is, it never makes it out of the tank. - ZTicket(Dallas) 06:31:32 10/27/14 it has to make it out of the tank if you are seeing it on - aliaZ 08:24:40 10/27/14 when you turn the key, the pump only runs for a few seconds - aliaZ 08:22:49 10/27/14 The FSM keeps pointing to fuel pressure regulator. It - ZTicket(Dallas) 09:56:04 10/28/14 I'll check the oil for signs/smell of fuel. I didn't - ZTicket(Dallas) 14:09:02 10/26/14 Pulled the dipstick, smelled oily. A faint hint of gasoline - ZTicket(Dallas) 06:34:53 10/27/14 the next time it happens, I'd check the vacuum lines from - aliaZ 08:25:59 10/27/14 This could help the "fuel in the intake" theory. If - ZTicket(Dallas) 09:00:12 10/27/14 interesting clue - aliaZ 08:31:05 10/27/14 This was also mentioned by TriniTT a few days ago. I - ZTicket(Dallas) 09:06:14 10/27/14 FPCU access via plastic cover for headlight aim tools. - ttz'in (NorCal) 12:25:06 10/27/14
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