darsdoug

It was just the thermostat seal leaking a little. A new one solved that mystery. quack quack quack.

I shall try that. Thanks Imdew.

ah er o.k. Always thought all of them from 2000 up to about 2008 had that issue? I guess that's what I get for thinking? The last time I was thinking I put a heli coil in a tensioner bracket. quack.

At a glance it appeared my non-turbo SOHC 2.5 had been leaking antifreeze from the water pump. I installed a new pump but I still have the leak coming from somewhere above the pump. Could it possibly be the notorious external HG coolant leak that 04 Subaru 2.5L are known for? What is the fastest way to pinpoint the origin of the leak without pulling the intake off? ughh.

Thank you. I do realize I need to hit the books on the emission stuff more often. Ebay's compatibility chart isn't very precise 100% of the time is it? I ordered up a 96 downstream sensor before I was aware of that. I may as well put that in when it gets here. e-z job.

Experiencing poor gas mileage after replacing a downstream oxygen sensor in a 96 Legacy 2.2 with a 2004 Forester 2.5 downstream oxygen sensor. No CEL. Just runs different. I'm convinced it does matter.

o.k. the connectors are identical. I installed it and I have not seen the CEL come on yet although the drive cycle may not be done?

My 96 2.2 legacy "downstream" 02 sensor just threw a CEL. I just happen to have a brand new one for a 04 Forester 2.5 SOHC. Would that be compatible if I use it ?

Yes I'm starting to wonder if the continuous freeway cruising speed of 60 MPH was sufficient to complete a drive cycle? There was of course some normal rush hour stop and go traffic going into Seattle. Dang I got rid of the P0302 and now I'm stuck with a P0420. The engine runs good with plenty of power though for having 230K on the clock. I just bought this one from the original owner last month. Compression test was 200psi on every cylinder. She said the HG's were recently replaced but didn't offer up much info about it. Catalyst monitors are non continuous ?

Will they pass my 2004 Forester if I have a pending code of P0420 but no CEL? I'd had a misfire on cyl. #2 the day before but I cleared it up with a new set of Denso plug wires. I dumped the misfire code and drove 75 freeway miles back home without any CEL coming on. It appears to maintain a pending code P0420.

I pulled one from a 91 Legacy wagon and yes indeed the connector was different. Went to pic n pull and got one from a 89-90 wagon and all is well.

The 2.2's became interference starting in the 97 model year. The heads and valve angle were changed causing the valves to travel farther down into the cylinders. Better fuel economy and a boost in power was the goal of the designers back then.

I checked it today and all the solder points appear good. I'm starting to wonder if it's just a problem with the connector? Yes I may go bonkers soon. ha ha.

There's one on eBay for sale but I'm hesitant to purchase it. (91-94)

Yes that's gotta be it. I noticed if I slanted it a little when lifting it out (before unplugging the pigtail with key on) all the buttons and fan switch kicked back on and off and on again. Thanks.

Anyone know if the AC panel from a 91-94 Legacy will work in my 90 Legacy? Mine bought the farm. It's not soda pop gumming up the buttons either.

Been searching and can't seem to find the info anywhere? "88 wagon specifically." Thanks.

Yes. Worked like a charm.

o.k. got it. Yes I had removed the TPS last month and had never marked it's original position. Playing with the idle screw wasn't very bright either. I should get it corrected now though. Your input was vital to my understanding. (I'm still a novice at this) I've been dazed and confused with the adjustment sequence on this puppy for months. Thanks Naru.

I found a thread that states you need to have an air gap of at least .028" (at the idle stop screw) or the ECU won't allow the engine to go into idle mode? So I tried it. Hey it worked! Cold start is 1200-1300 RPM and drops down to 600-800 RPM fairly quickly now. I told a friend about it and it fixed his high idle also. It was a post by Ivans Imports and states, "The throttle body hard stop must be set right or won't make idle contact in TPS and will not let ECU go into idle mode". I might still have to tweak it a bit because I can feel the throttle plate hanging up in the bore a little, but it sure has helped

I'm starting to understand these pre-OBD II systems somewhat now. "Thank you again". So..... when the ECU gets a message that the engine is under load it opens the IACV accordingly and mine happens to be stuck open. And that would be the non-current position of the solenoid plunger correct? No volts/commands coming from ECU to the solenoid?

O.K. started it cold and it will actually idle when it's cold now. Thank you! A couple weeks ago I'd removed the solenoid from the IACV and hooked 12 volts to it but never detected any movement. Did I fry it? When the IACV's are stuck open is it a major vacuum leak causing the oxygen sensor to over compensate resulting in a high idle?

I did the plug trick after I got her warmed up. Much better runner now. No miss or hesitation when driving around town. Think I'll let it cool off and see if it's still going to have the cold start problem? I've had to feather the pedal to keep it running during a cold start until it warms up.

A new CTS and a junkyard manifold harness is on my Christmas list for Santa.

o.k. I'll try that today. I know there's plenty of vacuum there.