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Old 12-12-2007, 03:36 PM   #1
state
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Member#: 118560
Join Date: Jun 2006
Chapter/Region: MAIC
Location: Bridgeport, WV
Vehicle:
2002 2.5 RS
Aspen White

Default it figures :(

last night I was driving home when I shifted from second to third gear, it felt like I just drove thru a puddle of mud. no acceleration at all (whereas normally my neck would snap back at least a little)

Today a little over an hour ago. I started my car (in neutral) to go get some lunch. The car turned over and started normally but then I could feel the car try to stall on me twice in four seconds! The tac. would drop way past one, go up then drop again. At that point I revved the engine and it started acting normally.

so my question: WTF is wrong with my baby?

just in case you ask, my mods currently are:

Greddy EVO2 CBE
ebay SRI
Borla Replica headers
Kartboy SS and bushings
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Last edited by state; 12-12-2007 at 03:37 PM. Reason: I am teh suck at spelling
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Old 12-12-2007, 03:54 PM   #2
Seraphinwolf
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Join Date: Jun 2007
Chapter/Region: NESIC
Location: Fremont, NH
Vehicle:
97 OBS EZ30R
94SVX LSi Bourduex Pearl

Default

Pull intake off and clean your throble body with some carberator cleaner and put some gas treatment in your tank. You likely got water up in the intake. Unless you didn't go through a puddle for real. I'd try this anyways and check all your vacume hoses.
-Gaddis
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Old 12-12-2007, 04:06 PM   #3
state
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Join Date: Jun 2006
Chapter/Region: MAIC
Location: Bridgeport, WV
Vehicle:
2002 2.5 RS
Aspen White

Default

I didnt really run thru a puddle, it just felt like it.

I will still check this as doing something is WAY better than sitting on my a** and doing nothing.

what would I be checking for on the vacume hoses? Just make sure they are still connected?


thanks!
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Old 12-12-2007, 04:19 PM   #4
Drakuun
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Join Date: Aug 2005
Chapter/Region: MWSOC
Location: The hole left by the Big3
Vehicle:
'02 2.5 RS
Platinum Silver Metallic

Default

This is a quite lengthy list I'm gonna post for you, and every single one of these things has at some point in time be cause to the sort of problem you describe. While there is obviously to much here to do at one time, it's a great place to start looking.

Common fixes for hesitation issues.

Oxygen Sensors

PCV Valve

Coil Pack (non-turbo)
Coil Packs (for turboed cars)

Spark Plugs

Spark Plug Wires (non-turbo)

Valve cover gaskets & Spark plug tube gaskets (Do this if you find ANY OIL AT ALL on your Plug wire ends, or spark plugs or, if you see oil in the plug tube.)

Dirty Injectors (seafoam cleaner)

Dirty Throttle Body (seafoam cleaner)

Dirty Electrical contacts on MAF or MAP sensors (Simply use Electric contact cleaner on the contacts. Do any you can find really,
it's not bad for them.)

Dirty or failing MAF or MAP sensors

Blocked, Clogged, or 'on its way to failing' Catalytic Converter

Coolant temperature sensor

And occasionally : Bad Gas

Also commonly suggested, is improving the Grounding under the hood.

The following are common sensors that fail in regards to the transmission ; causing hesitation problems, as outlined above.

TCM
Throttle position sensor
2-4 brake duty solenoid
ATF temperature sensor
Line pressure duty solenoid
Control valve
2-4 brake
2-4 brake timing solenoid
Speed Sensor
Lock up Clutch (4eat)
Tourque Converter (4eat)
Valve Body (not sure how it works or fails, but can cause issues)
Failing Clutch's
Gears
Clutch packs
Failing Differentials
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Old 12-12-2007, 04:43 PM   #5
cmiovino
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Location: Pittsburgh, PA
Vehicle:
2004 WRX Premium
PSM

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I'd suggest to check out the intake and vacuum lines first. Maybe one popped off?
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Old 12-13-2007, 04:39 PM   #6
JonP
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07

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If a vacuum line popped off wouldn't you throw a code being as you don't have a vacuum anymore ?? could be wrong
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Old 12-13-2007, 05:10 PM   #7
state
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2002 2.5 RS
Aspen White

Default

intake and vacuum are fine, I bought a PCV valve, seafoam cleaner, and some crap that goes into the gastank that supposedly cleans your injectors.

seafoam and PCV are going in this weekend, I put the injector stuff in immediatly. I noticed a bit more power on the wot, but not as much as it should be.
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Old 12-15-2007, 11:28 AM   #8
state
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Join Date: Jun 2006
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Location: Bridgeport, WV
Vehicle:
2002 2.5 RS
Aspen White

Default ***Update***

It appears to be my Catalytic Converter.

I was driving last night when my car decided to throw a CEL.

stopped by the local AutoZone and had it checked. Turns out it is a P0420

so, who knows of a cheap place to get a randomtech, or Stromung high flow cat?
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Old 12-15-2007, 12:00 PM   #9
Seraphinwolf
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97 OBS EZ30R
94SVX LSi Bourduex Pearl

Default

Quote:
Originally Posted by state View Post
It appears to be my Catalytic Converter.

I was driving last night when my car decided to throw a CEL.

stopped by the local AutoZone and had it checked. Turns out it is a P0420

so, who knows of a cheap place to get a randomtech, or Stromung high flow cat?
Wow that was unexpected. Highflow cat will be good at least.
-Gaddis
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Old 12-15-2007, 12:04 PM   #10
rcortez13
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Location: Commerce City, CO
Vehicle:
2007 2.5i
Obsidian Black

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A temporary or permenent fix which ever way you look at it could be to gut out your cat. Since you plan on replacing the cat this fix could save you some money and buy you some time. The thing about a clogged cat it can only get worse, robbing more power and drinking more gas. The worst possible scenario is the cat can completely clog up and your car won't even start.
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Old 12-15-2007, 12:17 PM   #11
jonesboy
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1998 Legacy 2.5GT
Rio Red

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Techworks Engineering in Calgary builds very nice exhaust components (including high-flow cats) that bolt right into stock systems. Their build quality is second-to-none, but you *do* pay a little bit for it.

-Matt
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Old 12-15-2007, 10:53 PM   #12
state
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Member#: 118560
Join Date: Jun 2006
Chapter/Region: MAIC
Location: Bridgeport, WV
Vehicle:
2002 2.5 RS
Aspen White

Default Nice

holy mother of some deity or another!

http://www.techworkseng.com/ has some really nice *****!

however, that is a little out of my price range.
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Old 12-19-2007, 10:49 AM   #13
state
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Join Date: Jun 2006
Chapter/Region: MAIC
Location: Bridgeport, WV
Vehicle:
2002 2.5 RS
Aspen White

Default Update

ok so I turned the car on the other morning, the lag was gone as was the CEL.

WTF?!

I know for a fact that there are no little Scooby gnomes living in my neighborhood that like to fix bad components, or else my neighbors Forester would have had it's head gaskets fixed

I am sure this isnt the end, my car just wants to eff with me
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