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This is a discussion on Check Engine light comes on when accelarating hard. within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Ever since I went catless, my CEL will pop on when i accelerate hard, when it happens it feels like ...
Ever since I went catless, my CEL will pop on when i accelerate hard, when it happens it feels like the fuel cuts out, it seems to happen between 80 and 85 mph. The light stays on, but after a few starts it clears itself. any suggestions???
Post the code, post a list of mods done to the car, and see if someone can help.
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my mods are
spt catback
HKS catless DP
spt intake
I would guess you need a tune....when I put my turbo back exhaust on this same thing happened to me...then I got it tuned and it has never happened since...Originally Posted by jmb8806
Wait...do you have an 06/07 with a catless downpipe...if so..get tune NOW!
Last edited by lytlec; 02-04-2010 at 01:14 PM.
<-------- Taylor Swift.
2006 WRX 330whp. 300wtq. Slow.
99.5 Jetta...I hear they make 90 to the wheels....
Hawk-Eye Alliance #137
First Mods...what to do.
Subaru Guide
overboosting most likley.....common thing when going catless on 06 and up wrx. I too recommend a tune
bobby@preracing.com
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Get a stage II map or tune ASAP (as said above). You can't run the car hard safely as it is now.
If that doesn't fix it get a DP with a cat and/or get an external wastegate.
This thread assumes you have a stage II map:
Boost creep / fuel cut
"From a little spark may burst a mighty flame." - Dante
"The stitch is lost unless the thread is knotted." - Italian proverb
ok so i got an AP and tuned to stage II and im still getting the same results the code is a P0244...im guess the next step is to get an external waistgate?
CobbTuning.com - Service Bulletin: 07 WRX/STi Overboosting with Catless Exhaust
Edit: my super sleuth skills indicate that you have an 06, but it's likely that the same applies to you going by a quote from their site:Please note: The catted version is recommended for the 2006-07 WRX, due to possible boost spiking while running catless
Last edited by mudferret; 02-19-2010 at 12:39 PM.
...Rob.
MMVI WRX - VF43 Airboy Tuned @ 3500'
i have an 06....
Edited prior to your reply, they mention the 06 as well. Lots of threads here and elsewhere discuss the issue.
...Rob.
MMVI WRX - VF43 Airboy Tuned @ 3500'
where is the waist gate located
There's a picture in the link...
Here's some more reading: CobbTuning.com - How Subaru’s Factory Boost Control System Works
...Rob.
MMVI WRX - VF43 Airboy Tuned @ 3500'
so do u think that getting a catted DP is my most deffinate way of fixing my problem then
I have read that leaving the stock catback can take care of the problem. Assuming you still have it around, this might be your cheapest and quickest solution. I believe all you need is a little bit of back pressure which the stock catback will provide.
If I don't die by Thursday, I'll be roarin Friday night - Jimmy Buffett
yeah but wont i loose some power then?
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