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what triggers overboost P1557 conditions in ME7?
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Topic: what triggers overboost P1557 conditions in ME7? (Read 3473 times)
erykv1
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what triggers overboost P1557 conditions in ME7?
« on: March 03, 2016, 08:53:32 AM »
Heyya Nef!
Quick question on some occasional codes I'm getting on a base tune I'm running.
Background info: Just had the motor out for stage 3 (k24 rs6's), new n75, rebuilt all wastegate lines etc etc.
The map seems to be hitting 12-13 psi for break-in. Occasionally I will get P1557 (overboost), P1127 & P1129 (rich conditions) without really driving the car hard.
-EDIT- just read that 1557 is actually an underboost code!
I know it could be possibly hardware related (boost leak, wastegate lines, bad n75) but seeing how all these are brand new, is it possible it could be tune related (maf scaling off, KFLDRL needing adjustment, LDRXN allowing too much spec load)?
Are there any blocks I can log to check if its tune related or hardware?
Just want to make sure the car is squared away before wasting the tuners time.
Thanks for any input!
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Last Edit: March 03, 2016, 11:23:06 AM by erykv1
»
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IamwhoIam
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Re: what triggers overboost conditions in ME7?
« Reply #1 on: March 03, 2016, 10:16:24 AM »
Boost leak
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I have no logs because I have a boost gauge (makes things easier)
ddillenger
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Re: what triggers overboost P1557 conditions in ME7?
« Reply #2 on: March 03, 2016, 02:11:09 PM »
Maf reading way too high.
This is usually a boost leak.
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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