Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

HELP!! Tuning questions for replacing turbo

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Old 05-09-2013, 03:20 PM
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if its just td04 to td04...then you don't need a tune.

I noticed you replaced the hose. Are all your hoses correct?


If that was correct. did you check the booster bill location that its not actually flipped around limiting boost?

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Old 05-09-2013, 03:21 PM
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Originally Posted by supersubi81
Shayhan, The td04 i put in was from a newer wrx with a 2.5l motor. Mine of course is a 2.0. Does that matter? Should i switch the restrictor pills?
If you used the 2.5L pill, yes, put back your stock pill.

Also, the 2.5L TD04 turbos use a different wastegate actuator than the 2.0L TD04 turbos, because they run lower boost pressure.

Move your wastegate actuator from your original turbo, unless there's something wrong with it.

If there's something wrong with it, start tightening the actuator arm one turn at a time until boost is getting close, then switch to half turns.
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Old 05-09-2013, 03:21 PM
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oops should have read the post before.
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Old 05-09-2013, 04:27 PM
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@ Concillian, I will give that a try when i get home. I will change the pill and try to adjust the arm on the wastegate.. But looking at the wastegate picture from above that "mistanime" posted i dont see anything on the arm or on the wastegate where i can adjust the arm. Is there something im not seeing?
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Old 05-09-2013, 04:36 PM
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Old 05-09-2013, 04:56 PM
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NICE! that helped alot! Thanks Misaanime!!
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Old 05-09-2013, 05:16 PM
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NICE! that helped alot! Thanks Misaanime!!
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Old 05-09-2013, 05:21 PM
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Hey, OP, did it help alot?

just giving u siht. LOL
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Old 05-10-2013, 10:33 AM
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Originally Posted by 02RS25
Hey, OP, did it help alot?

just giving u siht. LOL
It better help a lot. haha good luck op.
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Old 05-13-2013, 01:19 PM
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Hi Guys, update to my issue... Didn't work unfortunately. i have switched out the restrictor pill from my old turbo and put it in the new one. Then i watched the video at least a few times before adjusting my waste gate actuator..Nothing seems to work.. I have have tried adjusting the waste gate several times and I'm still at the 4-5 psi and 5psi being hard-foot down. I don't know if I'm dong anything wrong but i know i was following the video instructions correctly. Do i need to adjust anything on my vac/boost gauge? Maybe theres something i missed? PLEASE help! I just want my car to run normal again.. Thanks again guys
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Old 05-13-2013, 01:22 PM
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and no CEL's? i assume u would have mentioned that in OP if u did..
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Old 05-13-2013, 01:44 PM
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CELS? OP? Dude im sorry man what does that mean?
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Old 05-13-2013, 01:47 PM
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Oh OP (original post) right?
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Old 05-13-2013, 01:48 PM
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Originally Posted by supersubi81
CELS? OP? Dude im sorry man what does that mean?
ah..gotcha. do you have any check engine lights (CEL's) on? Any signification that your car is not running at normal boost levels? and you are sure you are low on boost? you can feel the diff? it could be a gauge issue. but if you FEEL the difference in performance, then it is indeed a mechanical boost issue.

OP=original post(er)
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Old 05-13-2013, 01:48 PM
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Originally Posted by supersubi81
Oh OP (original post) right?
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