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Old 09-22-2012, 10:47 PM   #1
Jackulous
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Default Car is running SO much better

so, i finally got the access port, plugged it in, installed the stage 2 93 map, and boom. car is running perfect. only problem i've had is i've overboosted a couple times now. seems to be pushing too many psi on the wastegate. does anyone know how i can fix this with the accessport?
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Old 09-22-2012, 10:59 PM   #2
Ptown_finezT
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Try to upload the lwg stage 2 map from cobb,the map will make the wastegate cycle start early and help you reduce your overboost issue.
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Old 09-22-2012, 11:16 PM   #3
Jackulous
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Quote:
Originally Posted by Ptown_finezT View Post
Try to upload the lwg stage 2 map from cobb,the map will make the wastegate cycle start early and help you reduce your overboost issue.

awesome man. thanks a ton. just downloaded the map. about to go install it.
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Old 09-23-2012, 12:09 AM   #4
Ptown_finezT
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^^^ no problem anytime.
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Old 09-23-2012, 08:41 AM   #5
fr0st
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I had the same issue. It would hitover boost but on rare occasions. I had a pretty good spike in 4 th gear.

LWG map FTW
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Old 09-23-2012, 11:11 AM   #6
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Quote:
Originally Posted by Jackulous View Post
so, i finally got the access port, plugged it in, installed the stage 2 93 map, and boom. car is running perfect. only problem i've had is i've overboosted a couple times now. seems to be pushing too many psi on the wastegate. does anyone know how i can fix this with the accessport?
As suggested by others, reflashing the low wastegate (LWG) map is the proper procedure when you are overboosting. Be sure to get a data log after you reflash the LWG map (if you can do so safely):


Bill
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Old 09-23-2012, 08:59 PM   #7
Jackulous
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Car is still over boosting. Even with the LWG map installed. OBd at like 4k-4500 rpm in 3rd. Any ideas?
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Old 09-23-2012, 09:07 PM   #8
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Car is still over boosting. Even with the LWG map installed. OBd at like 4k-4500 rpm in 3rd. Any ideas?
What are your mods? Are you getting the overboost check engine light and code or are you just seeing elevated boost via monitoring? Have you taken any data logs?

Bill
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Old 09-23-2012, 09:12 PM   #9
Jackulous
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Throwing codes. Logging now. Have taken one other the other day.
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Old 09-23-2012, 09:15 PM   #10
robsuerto
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cobb offers a SWG (severe low wastegate map), I suggest you download and install that one. Fixed my problem
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Old 09-23-2012, 09:43 PM   #11
Jackulous
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Quote:
Originally Posted by Cobb Tuning View Post
What are your mods? Are you getting the overboost check engine light and code or are you just seeing elevated boost via monitoring? Have you taken any data logs?

Bill

my only engine mods, as far i know, are just a Perrin TBE and the AP. bought it with the exhaust already on.

will do complete data logging tomorrow. didn't do it right while i was driving tonight.
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Old 09-24-2012, 02:29 AM   #12
07 Boosty
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Quote:
Originally Posted by Jackulous View Post
my only engine mods, as far i know, are just a Perrin TBE and the AP. bought it with the exhaust already on.

will do complete data logging tomorrow. didn't do it right while i was driving tonight.
Is the TBE catted? according to the AP map info, Stage2 is for a tbe with high flow cat. Could that possibly have any affect???

Last edited by 07 Boosty; 09-24-2012 at 03:02 AM.
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Old 09-24-2012, 05:40 AM   #13
fr0st
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If i remember correctly, Boost creep can happen with a TBE if it's catless?
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Old 09-24-2012, 08:42 AM   #14
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You can actually get boost creep with both a catted and catless Downpipe. Its said that a catless may have that issue more frequently.

I feel like it has more to do with the type of exhaust you have. I have a catless dp with the stock exhaust and have had 0 issues running TP stage 2 tune.
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Old 09-24-2012, 09:25 AM   #15
Cobb Tuning
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Quote:
Originally Posted by Jackulous View Post
my only engine mods, as far i know, are just a Perrin TBE and the AP. bought it with the exhaust already on.

will do complete data logging tomorrow. didn't do it right while i was driving tonight.
I would determine if you are catless or not - on some cars, catless can be the root cause of an overboost condition. There are other things to try, but that is a key piece of information.

Bill
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Old 09-24-2012, 01:24 PM   #16
Jackulous
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i'm pretty sure it's a high flow cat.

this is what i have..

http://www.perrinperformance.com/sub...o-back-exhaust


****confirmed with Perrin...it IS a high flow cat
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Old 09-25-2012, 09:28 AM   #17
Cobb Tuning
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Quote:
Originally Posted by Jackulous View Post
i'm pretty sure it's a high flow cat.

this is what i have..

http://www.perrinperformance.com/sub...o-back-exhaust


****confirmed with Perrin...it IS a high flow cat
Ok, next step would be to make sure there is not any damage to any of your wastegate lines. You want to look for cracks, split, etc. (don't forget the side that is not facing you) and disconnected or partially disconnected lines. Here's an explanation of the hardware:
http://www.cobbtuning.com/Technical-...es-s/70674.htm

If that all checks out, then the next step would be to loosen the wastegate arm. Here's a step-by-step on how to do this:
http://www.scoobypedia.co.uk/index.p...urWastegateArm

I would start with 2 full turns (make sure you are loosening and not tightening) and then get some data logs.

Bill
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