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Old 04-18-2005, 09:28 PM   #1
uncle lewie wrx
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Member#: 78066
Join Date: Dec 2004
Chapter/Region: Tri-State
Location: 2009 LGT
Default Quick Question, AP and Cat Back

Well about 2 weeks ago i installed the AP, flashed the base map and real time map (stage 2). I have an up and down pipe (background info). An this weekend im putting on a bosal singe tip exhaust. They sent me the two tools to reset the ECM. My question is do I need to re-flash my car because i re-set the ECM, due to installing the exhaust????
Any info would be helpful, thanks!
Uncle Lewie
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Old 04-18-2005, 09:45 PM   #2
WRX_2NR
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Quote:
Originally Posted by uncle lewie wrx
They sent me the two tools to reset the ECM. My question is do I need to re-flash my car because i re-set the ECM, due to installing the exhaust????
Uncle Lewie
What tools do you speak of?

If its just doing an ECU reset it won't hurt anything. Probably help the ECU relearn with the new catback

No need to do another reflash, the base map is already loaded.
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Old 04-18-2005, 09:45 PM   #3
WRC-Go
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Nope, Stage 2 includes the exhaust mods - resetting the ECU is good, though.
But you do NOT need to run a real time map over your base map.
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Old 04-18-2005, 09:48 PM   #4
uncle lewie wrx
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The"tools" i got witht exhaust inside the box. The paper about them reads "if the engine has over 500 miles or more, the engine control module (ECM) memory must be cleared before starting vehicle. To clear ECM read suby service manual."
Uncle Lewie
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Old 04-18-2005, 10:51 PM   #5
uncle lewie wrx
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Any1 else got any advice??
Uncle Lewie
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Old 04-19-2005, 10:02 AM   #6
WRC-Go
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Clarification: to clear the ECU, unhook negative battery cable and pump brakes for a few seconds. This will remove the "learning" your stage two ECU has overlaid and give it a fresh start with your somewhat less restrictive axleback exhaust. It will not erase your Stage 2 programming, so no need to re-install that. You car will "learn" the new exhaust system now.
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