Welcome to Ultimate Subaru Message Board, my lurker friend!
|Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.
We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!
Serving the Subaru Community since May 18th, 1998!
SPFI'd brat poor idle and pinging.
Posted 10 July 2009 - 04:35 PM
Posted 10 July 2009 - 05:41 PM
Your parents obviously had good taste. Always nice to see another Sam out there
Posted 10 July 2009 - 11:47 PM
Posted 11 July 2009 - 02:37 PM
If you remove the filter and cover the lower half of the housing it smoothes out a bit.
Posted 11 July 2009 - 03:38 PM
IIRC should be 2-3K ohms when cold(60-80 degrees F) and less than 500 Ohms when fully warmed up.
If it is more than 500 Ohms when hot, the ECU will be running it too rich and too advanced.
Posted 11 July 2009 - 06:37 PM
Posted 27 July 2009 - 06:32 PM
No codes D-Check comes back clean, timing @ 22 deg. Ive checked my TPS CTS & MAF 50 times now. Ive backprobed sensors back to the ECM they are all good. CAT & O2 sensor is less than a year old, vac readings good. Fuel filter is pretty recent, pump screen is clean. Fuel pressure dead on at 21psi. Compression better than expected. Checked - regapped plugs & re-routed plug wires, added ground wire to coil bracket. Tried different coil, MAF, IACV, injector, fuel pump, pressure regulator, plug wires, cap & rotor. I plugged every vac line at source & pvc except power booster. Intake boot seems decent & leak free.
Im outa ideas. Befor, I spend money on new NGK plugs and wires I know Im missing something. I thought perhaps the fuel volume was weak but I imagine that would effect pressure readings. My coil wire is kinda long but it wasnt a problem befor. This just happend.
Posted 27 July 2009 - 07:33 PM
Posted 27 July 2009 - 09:12 PM
The PCV is a closed system - it is part of the vacuum system and must be sealed.
Posted 28 July 2009 - 12:52 PM
It sounds like an ECM ground issue. Make sure your body to engine and body to battery grounds are nice and clean, and that the battery terminals are nice and clean as well.
I had already cleaned the ground lug where it mounts to the block and the batt terminal a couple days ago when I went nuts with the grounds. I decided to remove and clean the + terminal and clean it today. I hadnt messed with it yet because it was replaced it a few months ago. It looked ok but I cleaned it anyways. Well after my test drive that seems to have eliminated the ping and bogging. I cant belive I missed that the car would start, drive, lights would work fine 13.9 volts, yet it was a dirty + terminal causing these issues.
If it comes back Ill let you know, but it looks like Ive just waisted usmb space, and alot of energy on something really stupid. :-\
Edited by ihscout54, 28 July 2009 - 12:54 PM.
Posted 29 July 2009 - 11:51 PM
Edited by RenaissanceMan, 29 July 2009 - 11:56 PM.
Posted 31 July 2009 - 04:44 PM
You mention the compression is better than expected... could it have been planed too many times or could the combustion chanber have a build-up of carbon? I'm not sure if it's possible with your model but have you tried backing the ignition timing off a little?
Posted 31 July 2009 - 07:32 PM
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users