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Old 04-15-2013, 11:58 AM   #1
Caged240
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Hey guys/gals. I picked up a 02wrx wagon a couple months ago now probably 2-3. I drove it around for about 2-3 days when it developed a misfire.... So I checked here and all I could find was the replace the plugs, fuel filter and and spray the maf. Well I did all this and now the car is even worse and comes back with a misfire on all 4 cyl instead of just cyl 4 from the first time. The car does have up/down pipes, headers, full exhaust, intake and front mount. I don't believe it was ever tuned. Now can someone help me maybe? I can post a video maybe if need be. The car was a lot of fun when it Ran good but I would like to get it fixed help me please. Thanks for any replies
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Old 04-15-2013, 12:03 PM   #2
findurpath
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Quote:
Originally Posted by Caged240 View Post
Hey guys/gals. I picked up a 02wrx wagon a couple months ago now probably 2-3. I drove it around for about 2-3 days when it developed a misfire.... So I checked here and all I could find was the replace the plugs, fuel filter and and spray the maf. Well I did all this and now the car is even worse and comes back with a misfire on all 4 cyl instead of just cyl 4 from the first time. The car does have up/down pipes, headers, full exhaust, intake and front mount. I don't believe it was ever tuned. Now can someone help me maybe? I can post a video maybe if need be. The car was a lot of fun when it Rangoon but I would like to get it fixed help me please. Thanks for any replies
I'm a fan of the Crab Rangoons myself.

Fill out your profile. If the car was never tuned, then that should be your first step.
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Old 04-15-2013, 12:09 PM   #3
alecb
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Quote:
Originally Posted by Caged240 View Post
The car does have up/down pipes, headers, full exhaust, intake and front mount. I don't believe it was ever tuned.
This is not good, at all. Stop driving the car before you break it even more. Do a compression/leakdown test.
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Old 04-15-2013, 12:10 PM   #4
Caged240
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Originally Posted by findurpath View Post
I'm a fan of the Crab Rangoons myself.

Fill out your profile. If the car was never tuned, then that should be your first step.
Haha yea I fixed it.(not my car) ok so where would I find a person to tune it. And btw the shakes like a v8 with a HUGE lopey cam. I think it may be something simple maybe like iacv or something but need some opinions..
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Old 04-15-2013, 12:12 PM   #5
Caged240
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This is not good, at all. Stop driving the car before you break it even more. Do a compression/leakdown test.
I don't have a compression tester.
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Old 04-15-2013, 12:12 PM   #6
alecb
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Since you're in PA, look in the MAIC section. IAG could be within reasonable distance depending on what part of PA you're in.
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Old 04-15-2013, 12:16 PM   #7
Caged240
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In I'm central pa.
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Old 04-15-2013, 12:16 PM   #8
575rider
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what codes do you get on your Check Engine Light (CEL)? though your year cars ECU can adapt a bit to those mods, it's certainly best to get a tune. You aren't getting the max benefit of the mods whatsoever. What did you spray on the MAF? Does it still have the stock turbo? or do you know?
Your best bet will be to take it to a tuner, have them check it out.
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Old 04-15-2013, 12:20 PM   #9
Caged240
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what codes do you get on your Check Engine Light (CEL)? though your year cars ECU can adapt a bit to those mods, it's certainly best to get a tune. You aren't getting the max benefit of the mods whatsoever. What did you spray on the MAF? Does it still have the stock turbo? or do you know?
Your best bet will be to take it to a tuner, have them check it out.
Idk the exact code #s but its misfire on all cyl, something about my maf, and I think something about air intake temp? And I cleaned it with maf cleaner and the cel light doesn't just stay on it flashes? And yes stock turbo
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Old 04-15-2013, 12:22 PM   #10
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I don't have a compression tester.
If only there was some sort of way to trade money for one, or take the car to any shop anywhere and ask them to do the test and perform a similar trade. darn it!
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Old 04-15-2013, 12:25 PM   #11
Caged240
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If only there was some sort of way to trade money for one, or take the car to any shop anywhere and ask them to do the test and perform a similar trade. darn it!
Lol yea darn these places that only take payment of gum and not money. Well the local subaru dealer said it would start out at $200 just for a compression test plus $85 an hour.
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Old 04-15-2013, 12:34 PM   #12
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Quote:
Originally Posted by Caged240 View Post
I don't have a compression tester.
Well get one. Or take your problems to a shop
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Old 04-15-2013, 12:42 PM   #13
lovethebugeye
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Since it came back with misfires on all cylinders after you changed the plugs, there's a chance it was tuned on different plugs, and now the new ones are causing problems.

Just a thought.
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Old 04-15-2013, 12:56 PM   #14
Caged240
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Quote:
Originally Posted by lovethebugeye View Post
Since it came back with misfires on all cylinders after you changed the plugs, there's a chance it was tuned on different plugs, and now the new ones are causing problems.

Just a thought.
Idk? I'm pretty sure it wasn't tuned but can they tune stuff to only run on certain plugs?
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Old 04-15-2013, 01:04 PM   #15
HinshawWRX
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Did you make sure your plugs were OEM & gapped properly?
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Old 04-15-2013, 01:14 PM   #16
Caged240
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Did you make sure your plugs were OEM & gapped properly?
Ngk plugs and yea gapped right
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Old 04-15-2013, 02:15 PM   #17
jayman4312
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take it to not the subaru dealer, lol. any mechanic shop thats legit can do a compression/leak down test, and for a lot less that $280 like subaru wants.
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Old 04-15-2013, 04:18 PM   #18
fistv
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I don't know about subaru's but in a Jeep if the CEL is flashing that means don't run it.
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Old 04-15-2013, 04:27 PM   #19
RedBob
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Sounds like my intake leak I had. Runs like crap and the CEL is a random misfire.
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Old 04-15-2013, 04:51 PM   #20
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Bring it to a subaru shop, NOT a dealer. IAG was mentioned here, and it sounds like they'd be a great place to go. Plan alternative transportation because it sounds like something is properly messed up.

Have them do a compression test and find out what's going on. A real shop can do way more for a heavily modified car than a subie dealer can.
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Old 04-15-2013, 05:16 PM   #21
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Quote:
Originally Posted by JazzyJake View Post
Bring it to a subaru shop, NOT a dealer. IAG was mentioned here, and it sounds like they'd be a great place to go. Plan alternative transportation because it sounds like something is properly messed up.

Have them do a compression test and find out what's going on. A real shop can do way more for a heavily modified car than a subie dealer can.
^ +1
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Old 04-15-2013, 08:00 PM   #22
pamike
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state college, very close to me. but look into the things said above. and my take on this is if it ran worse after u messed with it then i'd re-check everything you did.
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Old 04-16-2013, 12:50 AM   #23
boosted25
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clean off your crank position sensor!!
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Old 04-16-2013, 01:43 AM   #24
04wrxhart
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Dude you can buy a compression tester for $25... If you can change your spark plugs you can do a compression test.
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Old 04-16-2013, 03:01 AM   #25
Caged240
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Yea my buddy is bringing a tester over today and we doing comp test. I talked with tpg today and they can get it tuned for me as soon as I want. But I'm going to try and get it tuning right if not I guess a swap is in order.
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