¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
  1. SubaruVanagon
  2. Messages
Single Messages Topics Expanded Polls

Re: 2.2 Cold start

 

Hi Duncan

As with any kind of diagnosing, check the basics first: plugs, spark, fuel pump/pressure, fuel filter, compression, low batt voltage when cranking. Other possible causes--bad ignition sw causing low voltage to ECU, bad grounds (very endemic to Subys-grounds?thru intake manifold-add ground wire direct to head from chassis), make sure you have good starter ground from engine/trans. Look for voltage drops while cranking.

Also, much overlooked, water in gas--pools in bottom of tank overnight, gets pulled into injecters before gas--add gas drier?to tank.

Just a few suggestions from a retired mechanic. Good luck.

Dennis

On Mon, Dec 25, 2023 at 8:38?AM Duncan Cameron via <duncancameron737=[email protected]> wrote:
Hey group.
New Subie guy w/700K+ of Vanagon time... but newly installed 2.2/2.5 Franken. Van is pretty hard to start below about 45F. I have checked some on the forums, seems like the "key on/off repeatedly fuel pump" trickF helps maybe a little. Van runs flawlessly once going, and the 2.5 w mod 2.2 heads feels like the the motor it's was always supposed to have- (thanks to Outback Motors for build.) Anyway I figured I'd replace the OE pump (and filter) just because it has more than 100K, pressure reg seems like it works generally normally but I was wondering do some folks change to to a Subie fuel delivery; pump, filter etc. Is there a check valve as I have seen some mention? Can someone point me to a thread on "Subaru Cold weather system ops" and how the OBD1 system compensates for temps.... pls tell me what other new Subaru parts I can throw at it LOL. I am in the Mnts of Nevada with wild temp swings. (don't get me started on the cabin heating system LOL!!
Install was professionally done last year by an "out of business"shop in SoCal -with his "new" 2.2 drinking a quart of oil every 600 miles (hence Outback saving me)...nice right?? "Thanks and Merry Christmas... I am in awe of you guys that did these harness and all from scratch pretty dang amazing.

Join [email protected] to automatically receive all group messages.