shehan_thora Posted August 8, 2014 Share Posted August 8, 2014 Hi All I recently got a Subaru Legacy 2006 2.0L with 121k on the clock. Very recently I did an oil change and a as a practice I use STP products as a fuel additive which I use for my other Subaru's as well & I used the same on on my new buddy ... A day after I was driving down in the traffic where as the car started jerking & the engine halted while I was in the traffic , it continued jerking & mis firing as well where finally the check engine light appeared along with the cruise control light blinking. I put the car in the garage & did a system check where below errors incurred P0418, P0172, P0638, P2101, P0607. When I just checked it says system rich or something like that. I just put the car at the dealers & they had cleaned the throttle body but seemed to be it still appears , Hope you can help me with the above I pray it's not going to be a thumping bill that I'm heading towards Appreciate your help cos im gng kinda clueless as to what would be the next step Thanks again Link to comment Share on other sites More sharing options...
ehsnils Posted August 8, 2014 Share Posted August 8, 2014 P0418, P0172, P0638, P2101, P0607. Looking at the list I compiled: http://www.bedug.com/pics/Subaru/obdcodes_Subaru.txt P0418 Secondary Air Pump Relay (Low) P0172 System Too Rich (Bank 1) P0638 Throttle Control Circuit Range/Performance Problem P2101 Throttle Control Motor Circuit Range/Performance P0607 Throttle Control System Circuit Range/Performance First question is if your system voltage is OK, a bad battery can cause strange things to happen. Also check fuses, remove each, inspect and put back. And this should be in the 4th gen forum. Link to comment Share on other sites More sharing options...
shehan_thora Posted August 8, 2014 Author Share Posted August 8, 2014 Hi Ehsins thanks a lot for your kind reply , Well system voltage seems to be fine since its got a recently replaced battery & the same time we did check all the fuses too. My worry is we did clean the throttle body too but nothing seems to be working Link to comment Share on other sites More sharing options...
SBT Posted August 9, 2014 Share Posted August 9, 2014 Moved to 4th Gen intake an exhaust forum. - Pro amore Dei et patriam et populum - Link to comment Share on other sites More sharing options...
shehan_thora Posted August 10, 2014 Author Share Posted August 10, 2014 Hi Everyone i managed to get it done , it was an issue with the throttle body intake sensor, I have no clue as to how it happened but im worried if it will happen again pray not though... if it does we may have to replace the entire throttle body Just want to know a few tips as to what i should do for it to not to happen again thinking of doing up an engine tune up replacing new air filter , petrol filter & spark plugs Or Please do let me know your views on it too. thanks alot for all your help the LEGACY FAMILY :) Link to comment Share on other sites More sharing options...
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