check engine light
Originally Posted by Impresive-G
eh i know all of the 240's have it but it really bothers me... hwo do i get rid of my light from being on. lol
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Joined: Nov 2002
Posts: 12,422
From: Teh Phantom Zone
Car Info: 2013 Toyota Prius Plug In 2011 Toyota Prius
Originally Posted by stilix
thanks for the tip my boost fluid is full lol. but would porting out my waste gate fix the boost creep
I don't think something mechanical will fix the boost creep, sound's like some sort of management issue.
Do you have a tune or at least a FCD?
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iTrader: (-2)
Joined: Jun 2005
Posts: 2,493
From: Tapatio Island
Car Info: Genesis Coupe
Originally Posted by STi-owns-evo
Or you can see if it fixes itself and disconnect the battery for a minute.
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Joined: Apr 2005
Posts: 2,288
From: secret
Car Info: 2005 sti
Originally Posted by Impresive-G
eh i know all of the 240's have it but it really bothers me... hwo do i get rid of my light from being on. lol
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Joined: Jun 2005
Posts: 996
From the janitors tech corner
When you installed the Down pipe it increased the flow through the exhaust system. This will effect the turbo's spooling.
The ECU has two maps for controlling boost. continuious and burst, this is known as turbo dynamics. Subaru set this up for the stock configuration. Because it is already engineered to the edge, the Waste Gate Duty cycle is at it's max value and any deviation will knock it out of balance.
This is what happens:
The exhaust pushed the turbo to boost.
The ECU looks at its map for the target boost pressure and WG Duty cycle to acheive it.
The ECU monitors the intakes manifold pressure
If the boost is too much it looks at one of the turbo dynamic maps for its correction and changed the WG Duty Cycle.
It will continue doing this until the target is hit.
Under shooting the value is not felt by you. Overshooting is!, it causes the ECU to cut boost levels and the drop is readily noticed.
Your problem is the engineered values are not compatible with the exhaust flow increase. The values in the map causes the WGS to over shoot its value. The flow is so much that the WGS is running at its max value and triggering the P0244 cel.
The best fix is to have the ECU flashed and its dynamic map corrected for you configuration. Some will say to port out the waste gate. This may work if the waste gate is ported to the exact amount that the DP increased the flow. I think this is a crap shot and very hard to do, although it can be done if the dremmel operator is trained and certified.
Your best solution is to reflash the ECU to support the changes. This is not cost effective but it just the results from you jacking with this Finely Engineered Vehicle
the janitor
The ECU has two maps for controlling boost. continuious and burst, this is known as turbo dynamics. Subaru set this up for the stock configuration. Because it is already engineered to the edge, the Waste Gate Duty cycle is at it's max value and any deviation will knock it out of balance.
This is what happens:
The exhaust pushed the turbo to boost.
The ECU looks at its map for the target boost pressure and WG Duty cycle to acheive it.
The ECU monitors the intakes manifold pressure
If the boost is too much it looks at one of the turbo dynamic maps for its correction and changed the WG Duty Cycle.
It will continue doing this until the target is hit.
Under shooting the value is not felt by you. Overshooting is!, it causes the ECU to cut boost levels and the drop is readily noticed.
Your problem is the engineered values are not compatible with the exhaust flow increase. The values in the map causes the WGS to over shoot its value. The flow is so much that the WGS is running at its max value and triggering the P0244 cel.
The best fix is to have the ECU flashed and its dynamic map corrected for you configuration. Some will say to port out the waste gate. This may work if the waste gate is ported to the exact amount that the DP increased the flow. I think this is a crap shot and very hard to do, although it can be done if the dremmel operator is trained and certified.
Your best solution is to reflash the ECU to support the changes. This is not cost effective but it just the results from you jacking with this Finely Engineered Vehicle
the janitor
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Joined: Nov 2002
Posts: 12,422
From: Teh Phantom Zone
Car Info: 2013 Toyota Prius Plug In 2011 Toyota Prius
Originally Posted by Ichinobu
When you installed the Down pipe it increased the flow through the exhaust system. This will effect the turbo's spooling.
The ECU has two maps for controlling boost. continuious and burst, this is known as turbo dynamics. Subaru set this up for the stock configuration. Because it is already engineered to the edge, the Waste Gate Duty cycle is at it's max value and any deviation will knock it out of balance.
This is what happens:
The exhaust pushed the turbo to boost.
The ECU looks at its map for the target boost pressure and WG Duty cycle to acheive it.
The ECU monitors the intakes manifold pressure
If the boost is too much it looks at one of the turbo dynamic maps for its correction and changed the WG Duty Cycle.
It will continue doing this until the target is hit.
Under shooting the value is not felt by you. Overshooting is!, it causes the ECU to cut boost levels and the drop is readily noticed.
Your problem is the engineered values are not compatible with the exhaust flow increase. The values in the map causes the WGS to over shoot its value. The flow is so much that the WGS is running at its max value and triggering the P0244 cel.
The best fix is to have the ECU flashed and its dynamic map corrected for you configuration. Some will say to port out the waste gate. This may work if the waste gate is ported to the exact amount that the DP increased the flow. I think this is a crap shot and very hard to do, although it can be done if the dremmel operator is trained and certified.
Your best solution is to reflash the ECU to support the changes. This is not cost effective but it just the results from you jacking with this Finely Engineered Vehicle
the janitor
The ECU has two maps for controlling boost. continuious and burst, this is known as turbo dynamics. Subaru set this up for the stock configuration. Because it is already engineered to the edge, the Waste Gate Duty cycle is at it's max value and any deviation will knock it out of balance.
This is what happens:
The exhaust pushed the turbo to boost.
The ECU looks at its map for the target boost pressure and WG Duty cycle to acheive it.
The ECU monitors the intakes manifold pressure
If the boost is too much it looks at one of the turbo dynamic maps for its correction and changed the WG Duty Cycle.
It will continue doing this until the target is hit.
Under shooting the value is not felt by you. Overshooting is!, it causes the ECU to cut boost levels and the drop is readily noticed.
Your problem is the engineered values are not compatible with the exhaust flow increase. The values in the map causes the WGS to over shoot its value. The flow is so much that the WGS is running at its max value and triggering the P0244 cel.
The best fix is to have the ECU flashed and its dynamic map corrected for you configuration. Some will say to port out the waste gate. This may work if the waste gate is ported to the exact amount that the DP increased the flow. I think this is a crap shot and very hard to do, although it can be done if the dremmel operator is trained and certified.
Your best solution is to reflash the ECU to support the changes. This is not cost effective but it just the results from you jacking with this Finely Engineered Vehicle
the janitor
just wanted to add there is a trick with a FCD to get the duty cycle to stay on.
-dish washer
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Joined: Nov 2002
Posts: 12,422
From: Teh Phantom Zone
Car Info: 2013 Toyota Prius Plug In 2011 Toyota Prius
Originally Posted by UberMaus
Why do you "NOT" work for subaru ichi?? lol, you could seriously be the bridge between Subaru engineers, and us lamens.. Good stuff
working for subaru bl0ws
speaks from experience
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