simpo Posted November 17, 2014 Share Posted November 17, 2014 Can you do a video that might help! Have you tried a ecu reset? Take it it's not leaking anywhere? Quote Link to comment Share on other sites More sharing options...
jdmsaq Posted November 18, 2014 Author Share Posted November 18, 2014 Right guys i cleaned existing lambda sensor made no difference. Went to euro car parts got NGK replacement one its slightly gone better. I've got induction kit on mine. @vtec2011 you may possibly be right about loosing back pressure. ECU reset i have not done. No leaks anywhere though. Quote Link to comment Share on other sites More sharing options...
Grant Posted November 18, 2014 Share Posted November 18, 2014 What sort of exhaust are you running mate? Quote Link to comment Share on other sites More sharing options...
EmZvr Posted November 18, 2014 Share Posted November 18, 2014 Check ignition timing with a timing light if it's not correctly set can rob a lot of power. Quote Link to comment Share on other sites More sharing options...
simpo Posted November 18, 2014 Share Posted November 18, 2014 You got an induction kit with no filter on it? I wouldnt say it was back pressure Quote Link to comment Share on other sites More sharing options...
jdmsaq Posted November 18, 2014 Author Share Posted November 18, 2014 What sort of exhaust are you running mate? Think its 2.25" in size and its straight through with no silencer, also custom decat. This start happening after installed japspeed manifold .. Quote Link to comment Share on other sites More sharing options...
jdmsaq Posted November 18, 2014 Author Share Posted November 18, 2014 You got an induction kit with no filter on it? I wouldnt say it was back pressure Yes iv got a filter on it lol.. oh right.. Quote Link to comment Share on other sites More sharing options...
Jayhoath83 Posted November 18, 2014 Share Posted November 18, 2014 Mabe emil is right have u ever checked the timing with a strobe light Quote Link to comment Share on other sites More sharing options...
Grant Posted November 19, 2014 Share Posted November 19, 2014 Defo worth checking ignition timing .. But this has started after the mani & decat .. You shouldn't have hit the timing doing that .. Wonder whether the mani & decat combo just doesn't agree with engine .. What size collector is on it? 2.25" as with the rest of the system? Quote Link to comment Share on other sites More sharing options...
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