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Old 01-10-2005, 04:47 PM   #1
Scooby Newbie
Member#: 79221
Join Date: Jan 2005
Default 2.2L Hesitation, manuals

I just bought a 1999 Impreza Outback Sport with 140k miles on it. The 2.2L engine has a slight stuttering/hesitation issue between 0-3000 rpm in 1st and 2nd gear when accelerating. Looking around the net this seems to be a common problem on many subarus, but without a one-size fits all solution

Some (sites, local shops) think it is a fuel issue and recommend various gas-tank additives + 91 octane for a week or cleaning the fuel injectors. Couldn't hurt or waste of cash?

The local subaru specialist suspected that it was likely *not* dirty injectors, but rather a ignition problem. Specifically spark plugs, plug wires or the coil pack. Is there a good way to isolate the problem without buying and trying all three of these parts (although I should probably replace the plugs anyway)? Pulling one of the wires out I didn't notice corrosion at either end. From what I have read this problem doesn't produce nice error codes. Are aftermarket plug wires desirable?

A few other questions:
Does a Chilton/Haynes manual for 1999 and up subarus exist?
Is the subaru documentation worth the $20 for a DIYer?
The car did not come with an owners manual, is there a separate rear window washer fluid tank? If so, where?
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Old 01-10-2005, 07:23 PM   #2
Trust no one
Member#: 11170
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
02 WRX
15 WRX/05 GTO


I don't think there are any manuals for the 99 other than the factory one. Yes it's worth it if you plan to do any work on the car yourself. Aside from providing the necessary info you need to do the actual job, the manual will also help you learn more about the car.
You can get the owners manual from the same site.
Mulder is offline   Reply With Quote
Old 01-11-2005, 12:08 AM   #3
NASIOC Supporter
Member#: 30669
Join Date: Dec 2002
Chapter/Region: Tri-State
Location: USA, North NJ, 07456
1998 Legacy 2.5GT
Silver Sleeper BK, 5MT


As far as I know, 1998 was the last year for a workshop manual from anywhere other than Subaru regardless of the model.

The rear window washer bottle is actually the same as the front one, it just has 2 pumps in it.

As to the idle/hesitation, it would not hurt to get a good baseline.

Plugs (NGK copper is fine)
Wires (I use OEM, less issues)
Check the air filter
Replace the fuel filter
Replace the PCV valve.

See if this cures the issue. If not, you are covered for a couple of years for some parts.
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Old 01-14-2005, 05:05 PM   #4
Scooby Specialist
Member#: 66640
Join Date: Jul 2004
Chapter/Region: Tri-State
Location: Rochester, NY
1997 Legacy Outback
Glacier White


Get NGK V-Powers. They're teh win.

OEM wires should be fine. Before you go out and buy new wires, check the resistance of all of them with an ohmmeter. They all should be only a few ohms (40? I forget.) and all roughly the same value. If any are too high or inconsistant, you should replace them.

Check/change your filters and PCV like Charlie-III said. It's neither expensive nor hard.

To my knowledge, they don't make Haynes books for Subarus later than '98 (yet) and I don't know about Chiltons. IMO, the factory manual is worth the money as it costs only a bit more and covers everything. It's got step by step instructions and awesome diagrams as well as lots of explanations as to how the various systems work. The only problems are the 20files/hour download limit (there's around 500 files) and the fact that it's really meant for techs and thus assumes a higher level of experience and mechanical aptitude than the average hammer and saw guy has. If you're up to it, go for it! At the very least, it makes for something the interested can read while sitting on the can or while bored. I read through my Haynes book all the time. It's so bloody interesting, how my car is put together.

EDIT: Oh yeah! Try searching for stuff about the grounding mod. Dunno whether it applies to the EJ22, but it's worth a look.

Last edited by Al_Smokemcrack; 01-14-2005 at 05:07 PM. Reason: I forgot something!
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