m sprank Posted September 27, 2011 Share Posted September 27, 2011 Once again I was asked to document a project I undertook with my 2008 SpecB. I have always hated the OEM air pump system. Sure it got rid of the cat in the up pipe, but at what expense? 10lbs of crap taking up valuable engine bay space? I have read of many problems associated with the delete. Mainly that the ECU goes haywire. Well, I figured that all out. It was actually the research I did to make my GM 3BAR MAP sensor work that led me to stumble upon the solution to deleting the air pump system. NEW: IP&T is now offering Custom made air pump delete block off plates. check them out: http://www.infamousperformance.net/media/03/a20791e138060401dfb695_s.jpg IP&T Subaru WRX/STI/LGT Air Pump Delete - Block-Off Plate Set http://www.infamousperformance.net/media/03/a20791e138060cf08447cf_s.jpg IP&T Subaru WRX/STI/LGT Air Pump Delete - Optional Air Injection Valve Block-Off Plate So without further delay I give you my solution to the air pump fiasco. Link to comment Share on other sites More sharing options...
m sprank Posted September 27, 2011 Author Share Posted September 27, 2011 First= the pump in all its glory. Second= the pumps two mounting points. Remove the two bolts, disconnect the electrical plug and release the hose clamp. Out it comes. Third, fourth and fifth= The plastic tube connecting the pump to the drivers side solenoid. Fifth being the bolt hole that mounts it. Remove the one bolt and the hose clamp at the drivers side solenoid. Out it comes Six and seven= the drivers side solenoid assembly. Eight and nine= driver side solenoid mount. Remove the two nuts and the hose clamp. Pull the tubing off and out it comes. Ten= the tubing from the drivers side to passenger side. Actually wraps around the back of the motor and then under the manifold. No hard mounting points. http://legacygt.com/forums/attachment.php?attachmentid=86560&stc=1&thumb=1&d=1277258383 http://legacygt.com/forums/attachment.php?attachmentid=86561&stc=1&thumb=1&d=1277258383 http://legacygt.com/forums/attachment.php?attachmentid=86562&stc=1&thumb=1&d=1277258383 http://legacygt.com/forums/attachment.php?attachmentid=86563&stc=1&thumb=1&d=1277258383 http://legacygt.com/forums/attachment.php?attachmentid=86564&stc=1&thumb=1&d=1277258383 http://legacygt.com/forums/attachment.php?attachmentid=86565&stc=1&thumb=1&d=1277258383 http://legacygt.com/forums/attachment.php?attachmentid=86566&stc=1&thumb=1&d=1277258383 http://legacygt.com/forums/attachment.php?attachmentid=86567&stc=1&thumb=1&d=1277258383 http://legacygt.com/forums/attachment.php?attachmentid=86568&stc=1&thumb=1&d=1277258383 http://legacygt.com/forums/attachment.php?attachmentid=86569&stc=1&thumb=1&d=1277258383 Link to comment Share on other sites More sharing options...
m sprank Posted September 27, 2011 Author Share Posted September 27, 2011 Eleven= passenger side solenoid. Held down with two nuts just like drivers side. Twelve and thirteen= passenger side solenoid mounting studs. Fourteen= hard pipe from engine to passenger side solenoid. Release from motor then remove. Fifteen and sixteen= passenger side motor mount for hard pipe to solenoid. Remove two bolts and lift out through are in next pic. Seventeen= where hard pipe will exit from. Eighteen and nineteen= all the parts out. Twenty= drivers side solenoid and studs. I doubled up the nuts and then used them to back out the studs. http://legacygt.com/forums/attachment.php?attachmentid=86570&stc=1&thumb=1&d=1277258513 http://legacygt.com/forums/attachment.php?attachmentid=86571&stc=1&thumb=1&d=1277258513 http://legacygt.com/forums/attachment.php?attachmentid=86572&stc=1&thumb=1&d=1277258513 http://legacygt.com/forums/attachment.php?attachmentid=86573&stc=1&thumb=1&d=1277258513 http://legacygt.com/forums/attachment.php?attachmentid=86574&stc=1&thumb=1&d=1277258513 http://legacygt.com/forums/attachment.php?attachmentid=86575&stc=1&thumb=1&d=1277258513 http://legacygt.com/forums/attachment.php?attachmentid=86576&stc=1&thumb=1&d=1277258513 http://legacygt.com/forums/attachment.php?attachmentid=86577&stc=1&thumb=1&d=1277258513 http://legacygt.com/forums/attachment.php?attachmentid=86578&stc=1&thumb=1&d=1277258513 http://legacygt.com/forums/attachment.php?attachmentid=86579&stc=1&thumb=1&d=1277258513 Link to comment Share on other sites More sharing options...
m sprank Posted September 27, 2011 Author Share Posted September 27, 2011 Twenty one= the hard pipe Twenty two= plastic tube from pump to drivers side solenoid. Twenty three= plastic tube from drivers side solenoid to passenger side solenoid. Twenty four= passenger side solenoid. Twenty five= top of passenger side solenoid cut off with a sawzall. Solenoid electro-magnet and sensor on the side now. Twenty six, seven, and eight= sensor cut out. Can still cut more of the metal away. All I need is the small square portion on top. I could cut it off with a heat gun and sharp blade. Twenty nine and Thirty= the two sensor connectors. Notice the drivers side is two wires. This is power and ground for the solenoid electro-magnet. Now see the passenger side is 5 wires. Two of them are power and ground for the electro-magnet. The other three are power, ground and signal for the atmospheric pressure sensor. It is important to place new gaskets and block off plates over the two openings. Then reconnect the passenger side atmospheric sensor to the OEM harness (purple plug) and find a happy home for it. Zip ties will work it is most likely still under the manifold in the end. You can simply tape off the other two connections (power/ground to pump motor and drivers side solenoid). Now the list of CEL's that need to be disabled; * P0410 * P0411 * P0413 * P0414 * P0415 * P0416 * P0417 * P0418 * P0419 * P2431 * P2432 * P2433 * P2441 * P2444 Once the CEL's are disabled you can open romraider logger with the key int he "on" position but the engine off. Check your atmospheric pressure reading. If it is good, so are you. The ECU checks atmospheric pressure against manifold pressure at start up. If the two readings are too far apart, no fuel or spark. This is a safety feature Subaru built in. If the ECU determines that one of the sensors went bad while the car is running you go into limp mode. You wont see it anymore because you turned off the CEL. But the car will not run properly and might not start again after shutdown. This is what lead everyone to think that deleting the air pump messed up the ECU. It is not a grounding issue. But a sensor issue. If you do not want to cut the sensor out of the solenoid you could simply get a second block off plate (KS Tech makes one) for just the solenoid. You would have to block it off and leave it in place. Less weight reduction. Still in the way of your turbo (STi style) ad inlet. But better than nothing. Hope this helps someone. http://legacygt.com/forums/attachment.php?attachmentid=86550&stc=1&thumb=1&d=1277257062 http://legacygt.com/forums/attachment.php?attachmentid=86551&stc=1&thumb=1&d=1277257062 http://legacygt.com/forums/attachment.php?attachmentid=86552&stc=1&thumb=1&d=1277257062 http://legacygt.com/forums/attachment.php?attachmentid=86553&stc=1&thumb=1&d=1277257062 http://legacygt.com/forums/attachment.php?attachmentid=86554&stc=1&thumb=1&d=1277257062 http://legacygt.com/forums/attachment.php?attachmentid=86555&stc=1&thumb=1&d=1277257062 http://legacygt.com/forums/attachment.php?attachmentid=86556&stc=1&thumb=1&d=1277257062 http://legacygt.com/forums/attachment.php?attachmentid=86557&stc=1&thumb=1&d=1277257062 http://legacygt.com/forums/attachment.php?attachmentid=86558&stc=1&thumb=1&d=1277257062 http://legacygt.com/forums/attachment.php?attachmentid=86559&stc=1&thumb=1&d=1277257062 Link to comment Share on other sites More sharing options...
Infamous1 Posted September 27, 2011 Share Posted September 27, 2011 My man... Link to comment Share on other sites More sharing options...
m sprank Posted June 19, 2012 Author Share Posted June 19, 2012 http://www.infamousperformance.net/images/store_version1/storelogo/LOGO.jpg We are pleased to announce a new product release from IP&T. http://www.infamousperformance.net/media/03/a20791e138060401dfb695_s.jpg IP&T Subaru WRX/STI/LGT Air Pump Delete - Block-Off Plate Set http://www.infamousperformance.net/media/03/a20791e138060cf08447cf_s.jpg IP&T Subaru WRX/STI/LGT Air Pump Delete - Optional Air Injection Valve Block-Off Plate Block off plates for the removal of your air pump system. http://www.infamousperformance.net/media/03/a20791e13806144136bcaf_s.jpg Subaru Air Injection Gasket - Driver Side http://www.infamousperformance.net/media/03/a20791e13806231b81a4a0_s.jpg Subaru Air Injection Gasket - Passenger Side The required gaskets too. Link to comment Share on other sites More sharing options...
Sgt.Gator Posted November 14, 2015 Share Posted November 14, 2015 This is a great tutorial. I bought a 2008 Spec B that had already had this work done and in the process of rebuilding the engine I needed to understand what had been done before me. This is the exact thing, thank you! Nothing like a race track to find the weak points in man and machine. "Good Judgement comes from Experience. Experience comes from Bad Judgement" Link to comment Share on other sites More sharing options...
m sprank Posted March 26, 2016 Author Share Posted March 26, 2016 Have a Happy Easter!!! Link to comment Share on other sites More sharing options...
m sprank Posted November 11, 2016 Author Share Posted November 11, 2016 http://www.infamousperformance.net/storage/happy-veterans-day-pictures.jpg The soldier above all others prays for peace, for it is the soldier who must suffer and bear the deepest wounds and scars of war. Douglas MacArthur Link to comment Share on other sites More sharing options...
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