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!
CEL and misfires
Posted 08 June 2005 - 09:21 PM
What else can cause this engine (phase i 2.5), to misfire?
Are Bosch Platinum bad for this engine?
Posted 09 June 2005 - 12:35 AM
Posted 10 June 2005 - 01:10 PM
The engine is still missing, although according to my wife, who drives it the most, it's not consistent.
I'm just wondering what else can cause missing. I will change the plugs this weekend, BUT I bought Bosch Platinums for it, and now am wondering if that's a good idea. I've seen opinions that I shouldn't use them...?
And the clerk at the auto parts store where I bought the plug wires and ignition coil said it's a BIG mistake to use Bosch, but he didn't have the NGKs he said I should use.
I don't know what brand plugs are in it now, but my father-in-law insists he changed them when we replaced the timing belt a few months ago (ok, just BEFORE winter in VT!).
Posted 10 June 2005 - 11:09 PM
I would take the car to a place you can have the codes read for free like Auto Zone and see what the code is that may help with finding the problem. I think some folks have had to replace the knock sensor for this kind of problem. Also could be the O2 sensor.
Posted 10 June 2005 - 11:33 PM
this is what they told me, when I was checking my impreza, having the same problem (misfire) sense it runs fine some of the time...
the codes can be reset by computer, but you will have to take it to someone who has a Subaru Select Monitor, or a ODBII scan tool
if you can have someone (autozone does this for free) pull the codes, that will help determine the problem
Posted 11 June 2005 - 01:03 PM
Can you be more specific about which is the AIC?
Posted 11 June 2005 - 01:31 PM
Posted 11 June 2005 - 02:46 PM
I found it! And when I call it IAC and look in Haynes, I find a lot there too!!
Looks like that's working.
Off to Auto Zone (finally) for codes and NGK plugs.
(gee, I was on Oahu last October. It's as hot in VT right now as it was there then, but I want to go back...)
Posted 11 June 2005 - 03:06 PM
Posted 14 June 2005 - 09:17 PM
Thanks for all the help.
Posted 20 June 2005 - 10:47 AM
Of course, at 124K changing wires, coil, etc. wasn't a bad idea, but this did teach me to go read the code FIRST!!
Now I've read on this board that the O2 sensor(s) can get 'lazy'?? Don't think I want to go tell father-in-law he needs to spend another $100-200 on parts yet!
thanks for all the help.
Posted 20 June 2005 - 11:47 AM
Posted 22 August 2005 - 08:34 AM
not sure if this is a new or related problem!!
2 months since this thread, and now the CEL came back on! Going to get the code at lunch today, but have a couple of observations/questions.
Last week the car seemed to miss some on hills, but when we turned the A/C off that stopped, and since it's late in the summer, I just let it go.
This weekend, when we left my father-in-law alone with the car!, he said it 'jumped suddenly, somewhat violently', and the CEL came back on. He tried to reset it (by pulling the battery) but it won't reset. Which is good, I'll go get the code now.
Can a seizing A/C compressor cause this? Didn't hear any belts squeal.
Any hints before I come back with the code?
Posted 22 August 2005 - 12:56 PM
We also bought some Seafoam. Any other diagnostic help would be greatly appreciated! thanks, John
Posted 22 August 2005 - 02:46 PM
Posted 22 August 2005 - 04:10 PM
this is the first time I noticed someone say to put the Seafoam in the fuel tank. Others have mentioned using a vacuum line - a ported line on the throttle body, or a vacuum line at the top of the intake manifold (just under the throttle body).
Is one method better? Should I do both? Is there a consensus??!!
Posted 23 August 2005 - 12:00 AM
Then pour a third of a can into the fuel tank. Worked for me (I think.)
Posted 23 August 2005 - 09:05 AM
Will see what happens when my wife uses it today!!
(and maybe buy another can for my old Saabs! - but that would probably make the oil leaks worse...)
Posted 23 August 2005 - 11:24 AM
Hi! Could you give some more details? What vac line did you use exactly? Did you just drop it in the can? etc.
thanks. I sucked in about a third, but let it run.
Would like to do something similar but am afraid the vac could suck in too much fluid and harm the engine.
Posted 23 August 2005 - 11:34 AM
This used to be pretty common in the old days, but I have no done it myself in years.
Any fully ported vacum line will do.
Posted 23 August 2005 - 12:48 PM
I used the vacuum port at the bottom of the throttle body, just above the intake manifold. Just stuck a hose in the can and sucked in some...
Seemed to work; my wife's been using the car today and says it's much better.
NOW, I just need to take the front off again and change the oil pump o-ring, and change the struts!!
Posted 02 September 2005 - 10:00 PM
but the car is still missing some, when warm and doing a slight climb, usually in 5th. sometimes downshifting helps, but not always.
guess I should change the O2 sensor? anything else. I have checked vacuum hoses, don't see anything there.
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users