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Old 11-12-2007, 01:46 PM   #1
stickygerbils
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Default New 2.5 RS Owner (n00b questions)

Hey, first time posting in here. Just got a 98 RBP 2.5 RS a few days ago ()and have a few dumb n00b questions.

1. My check engine light came on as I was bringing her home from Arkansas to Georgia. Got it checked and it was a misfire on cylinder 1. Should I replace the spark plugs and wires?

2. My 06 STi factory exhaust is sitting in my garage collecting dust. Is there any way to bolt it up or will I have to do a custom chop and install? I'm not looking to spend a lot on her until the engine craps out.

Flame away.
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Old 11-12-2007, 06:18 PM   #2
mdungelman
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I think you should swap everything from your STI to the RS. I can't offer any advice on the plugs and wires. Probably wouldn't hurt to get a little tune-up. As far as the exhaust, at the very least the axleback will bolt up. The midpipe can most likely be chopped.
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Old 11-12-2007, 06:23 PM   #3
Speed Racer
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As for the factory STi exhaust it will indeed bolt up from at least the axle-back (as was stated).

As for the misfire I would get a compression check just to make sure everything is good, but I don't know much. Sorry bud. Good luck with the new RS! I love mine!
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Old 11-12-2007, 06:56 PM   #4
piker28
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^^incorrect junior

only on 06+ rs's or i's whatever you wish to call them the sti axleback will bolt on. From 98-05 the sti axleback will not just bolt on, that also goes with the catback. If you chose to use the axleback the flange needs to be rotated, if full catback than you must have the midpipe flange cut off and extended a couple inches
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Old 11-12-2007, 07:00 PM   #5
mdungelman
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Word. Listen to teh guru. Sorry I, a.k.a. "junior", was giving bad info.
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Old 11-12-2007, 07:05 PM   #6
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oh im just bustin balls callin people junior some reason i like to do it also the same with kiddo

and guru is nothing more than bein a postwhore ha

but you were very right on the full sti swap into it
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Old 11-12-2007, 07:28 PM   #7
stickygerbils
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Thanks guys!
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Old 11-12-2007, 07:37 PM   #8
moonlightspoon
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Also, rs25.com is a good resource for us old N/A dudes. Lots of stickies and a search function there to help you learn tons of stuff about the idiosyncracies of the GC/GM RS. I'm a fan.
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Old 11-21-2007, 02:08 AM   #9
Speed Racer
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Quote:
Originally Posted by piker28 View Post
oh im just bustin balls callin people junior some reason i like to do it also the same with kiddo

and guru is nothing more than bein a postwhore ha

but you were very right on the full sti swap into it
Eh I don't mind being called junior. This is a forum for all of us to learn.
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Old 11-21-2007, 11:17 AM   #10
Patrick Olsen
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Quote:
Originally Posted by stickygerbils View Post
1. My check engine light came on as I was bringing her home from Arkansas to Georgia. Got it checked and it was a misfire on cylinder 1. Should I replace the spark plugs and wires?
Couldn't hurt to replace the plugs and wires, and you might also need a new coilpack. If you start the car in a dark place (like a garage with no lights on) sometimes you can see the coilpack sparking to the intake manifold. (I've never seen this myself, but I know others have diagnosed a bad coil pack that way.)

Pat Olsen
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Old 11-21-2007, 11:50 AM   #11
2.5i
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Quote:
Originally Posted by Patrick Olsen View Post
Couldn't hurt to replace the plugs and wires, and you might also need a new coilpack. If you start the car in a dark place (like a garage with no lights on) sometimes you can see the coilpack sparking to the intake manifold. (I've never seen this myself, but I know others have diagnosed a bad coil pack that way.)

Pat Olsen
F'n coilpacks, that reminds me of this time my buddy went to Autozone and asked for everything to give a full tune up. He owned a 1991 Eagle Talon TSi AWD. The salesman got him plugs, oil filter, fuel filter, and a distributor cap. Comes home and realized something was wrong... couldn't find the distributor. I stopped by and took a look and I was like dude theres a coilpack. We took it back to Autozone and the salesman straight up agrued with us. Sorry off topic just made me think back as all.
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Old 11-22-2007, 02:10 AM   #12
opious
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(another a little off-topic) autozone tried to sell me an oil pan gasket for my 99 rs engine... which doesn't have a gasket, just uses RTV sealant. then they tried to charge me $40 for a $14 exhaust gasket and told me subaru charges $60+ for it. moral: never trust autozone when they're trying to sell you stuff.

as for the OP, yes, plugs and wires are best idea for fixing misfire code. buy the 92-98 Haynes service manual for the Subaru Legacy at dreaded Auto Zone for $20. it's got photos in the back that'll help diagnose what caused the plugs to go bad (i.e.-burning oil, rust from coolant, etc...) and it's just damn helpful to have when you don't have a computer to look stuff up on.
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Old 11-22-2007, 02:41 AM   #13
Patrick Olsen
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(another a little off-topic) autozone tried to sell me an oil pan gasket for my 99 rs engine... which doesn't have a gasket, just uses RTV sealant.
Felpro makes an oil pan gasket for the EJ25. Not everybody is a fan of using RTV. I have the Felpro gasket sitting here to be used when I build my new engine in the next couple weeks.
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