COBB Accessport for 04 wrx Help!!!

[jonr14]

i just bought a cobb accessport for a 04 wrx that i just got from the subaru dealership here in town..my wrx has the aftermarket requirement to perform stage 2 acn91. I went to install the accessport and it said that there was a tune already done and that continuing installment of accessport will erase that tune...me eager to install the accessport is pressed continue. when i go to read the boost on the accessport its always around -9.0 to -6.6 psi around that area when i check the target boost it reads -3.5 psi, dont know if that is normal??? then i did a data log and this is what i got

https://docs.google.com/spreadsheet/...3UxN3pLT2QwMXc

i would appreciate any help as this is my first wrx and i am stoked to have it!!

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[Cobb Tuning]

Originally Posted by jonr14

i just bought a cobb accessport for a 04 wrx that i just got from the subaru dealership here in town..my wrx has the aftermarket requirement to perform stage 2 acn91. I went to install the accessport and it said that there was a tune already done and that continuing installment of accessport will erase that tune...me eager to install the accessport is pressed continue. when i go to read the boost on the accessport its always around -9.0 to -6.6 psi around that area when i check the target boost it reads -3.5 psi, dont know if that is normal??? then i did a data log and this is what i got

https://docs.google.com/spreadsheet/...3UxN3pLT2QwMXc

i would appreciate any help as this is my first wrx and i am stoked to have it!!

I responded to your other post, but probably best to have the discussion here. Can you list all the mods that are done to the car? Your log shows very extreme A/F Learning 1 values (long-term fuel trims). This indicates that either you are running the wrong intake for the map or you have a mechanical issue such as an intake/boost leak, bad MAF, or bad front o2.

Bill

[jonr14]

thanks bill...not really 100% sure on what extactly the mods are..just got my car and it came with all the mods...i am at work right now but get off @ 3pm pacific time. i will then take a closer look at the whole car and let you know exactly what the mods are, all i can tell is that it has a after market up pipe down pipe full exhaust and a apexi cold air intake i believe...thanks again, and i will update you on the complete mods as soon as i can

[jonr14]

thanks bill...not really 100% sure on what extactly the mods are..just got my car and it came with all the mods...i am at work right now but get off @ 3pm pacific time. i will then take a closer look at the whole car and let you know exactly what the mods are, all i can tell is that it has a after market up pipe down pipe full exhaust and a apexi cold air intake i believe...thanks again, and i will update you on the complete mods as soon as i can

[Cobb Tuning]

Originally Posted by jonr14

thanks bill...not really 100% sure on what extactly the mods are..just got my car and it came with all the mods...i am at work right now but get off @ 3pm pacific time. i will then take a closer look at the whole car and let you know exactly what the mods are, all i can tell is that it has a after market up pipe down pipe full exhaust and a apexi cold air intake i believe...thanks again, and i will update you on the complete mods as soon as i can

The aftermarket intake is likely the problem here. You'll need to switch back to the stock intake (or swap with a Cobb SF intake) if you wish to use our off-the-shelf (OTS) maps safely. The other option would be to get a custom tune done for the intake by a shop that use our AccessTUNER software. Besides tuning for the intake, a custom tune usually nets you additional power over the OTS maps.

Bill

[jonr14]

so if i switch to the cobb intake do you believe that would fix my problem? Im thinking of buying one and checking it out....if worst comes to worst and that not the problem do you think i might of installed the port wrong? or could something else be wrong? i have a full cat back exhaust i checked all the turbo hoses and everything seem to be on there tight. i took it on another test drive and it seems like i hit 18.8 psi too quick (is 18.8psi safe?) and then the turbo peaks and it doesnt pick back up, i actually start to loose power.. I hit 18.8 psi too quickly and the waste gate seems to be taking a beating in the readings. dont know if thats safe so dont think ill be driving hard untill i get the cobb intake. since it didnt save a map when i installed the accessport how do i unmarry it? i want to install it again once i have purchased the cobb intake. or could the accessport have malfunctioned?

[Cobb Tuning]

Originally Posted by jonr14

so if i switch to the cobb intake do you believe that would fix my problem? Im thinking of buying one and checking it out....if worst comes to worst and that not the problem do you think i might of installed the port wrong? or could something else be wrong? i have a full cat back exhaust i checked all the turbo hoses and everything seem to be on there tight. i took it on another test drive and it seems like i hit 18.8 psi too quick (is 18.8psi safe?) and then the turbo peaks and it doesnt pick back up, i actually start to loose power.. I hit 18.8 psi too quickly and the waste gate seems to be taking a beating in the readings. dont know if thats safe so dont think ill be driving hard untill i get the cobb intake. since it didnt save a map when i installed the accessport how do i unmarry it? i want to install it again once i have purchased the cobb intake. or could the accessport have malfunctioned?

Boost control is a separate issue. You have a short wide open throttle run in the logs and you are overboosting quite a bit.

The issue I'm talking about is extreme long-term fuel trims that are likely a result of the intake. That can cause load to determined incorrectly which will cause fueling and timing to be off (not good).

At this point, I would try to stay out of boost. The first thing to fix is to get the proper intake on the car. Then boost control can be looked at next. Since we know you are overboosting, I would download the low wastegate version (LWG) of your map from our map repository and reflash it to your car:
http://www.cobbtuning.com/info/?ID=3061

If you have a local experienced Subaru tuning shop, I would recommend taking the car there and have them do a once-over to determine what has been done to the car and go from there.

Bill

[jonr14]

thanks very much bill!!! i really do appreciate the help as i am new to this.

[jonr14]

so i called the dealer and asked them if they new anything about what was done to the car such as upgrades.....they didnt know much but did tell me that it was a catless exhaust, the previous owner didnt have a catalytic converter, they told since i was registering my car in NV that i would be an issue....now my question is can this be part of the problem with overboosting with the stage 2 acn91 v310 map???? as well with the combination of the intake?

[Cobb Tuning]

Originally Posted by jonr14

so i called the dealer and asked them if they new anything about what was done to the car such as upgrades.....they didnt know much but did tell me that it was a catless exhaust, the previous owner didnt have a catalytic converter, they told since i was registering my car in NV that i would be an issue....now my question is can this be part of the problem with overboosting with the stage 2 acn91 v310 map???? as well with the combination of the intake?

Catless exhausts aren't generally as much as a problem with the 2.0L cars (i.e. 02-05 WRX) as far as overboosting compared to the 2.5L cars. I would really try to get an experienced Subaru tuning shop to give the car a once-over to determine exactly what was modified.

Bill

[jonr14]

went to a tuner and figured out exactly what went wrong..... i had a lot more mods then i thought.....sti ugraded turbo wich probably explains the boost not working correctly with the accessport, custom headers, and many more things. the tuner told me me the reason the accessport wasnt working is because there is a lot done to my car and its not really a stock wrx with a full exhaust. so pretty stoked about all the mods already done!!!! I made an appointment to get the proper tuning for the car.....thanks again Bill. I really appreciate all your input.

[Cobb Tuning]

Originally Posted by jonr14

went to a tuner and figured out exactly what went wrong..... i had a lot more mods then i thought.....sti ugraded turbo wich probably explains the boost not working correctly with the accessport, custom headers, and many more things. the tuner told me me the reason the accessport wasnt working is because there is a lot done to my car and its not really a stock wrx with a full exhaust. so pretty stoked about all the mods already done!!!! I made an appointment to get the proper tuning for the car.....thanks again Bill. I really appreciate all your input.

Great - I'm glad you got it all figured out!

Bill