Books Posted July 7, 2016 Share Posted July 7, 2016 Recently I've noticed that my engine will bog, or almost stutter when I start to accelerate. It's nerve racking because I have no idea what could be causing it... Any possibilities / known problems I should be aware of? Link to comment Share on other sites More sharing options...
Carlton603 Posted July 7, 2016 Share Posted July 7, 2016 That is a difficult question to answer without more information. Do you know if the car has any modifications? Does this happen when the engine is cold, at operating temperature or both? Check engine light, etc... The more information you can share the better. Link to comment Share on other sites More sharing options...
Books Posted July 7, 2016 Author Share Posted July 7, 2016 That is a difficult question to answer without more information. Do you know if the car has any modifications? Does this happen when the engine is cold, at operating temperature or both? Check engine light, etc... The more information you can share the better. Completely stock... Happens at both operating temp and when its cold. No check engine light. Let me know what more info you need Link to comment Share on other sites More sharing options...
FJuan Posted July 7, 2016 Share Posted July 7, 2016 Sounds like you have the common stumble between 2 - 3k RPMs, check this thread out, it may help. http://legacygt.com/forums/showthread.php/famous-stumble-fixedi-232816p15.html My wife's balls are delicious. Link to comment Share on other sites More sharing options...
west_minist Posted July 12, 2016 Share Posted July 12, 2016 If you can sir, create a log based on the parameters here - http://www.xtremeracingtuning.com/forum/viewtopic.php?f=113&t=501#p1824 and post the log or pm me. Link to comment Share on other sites More sharing options...
JmP6889928 Posted July 14, 2016 Share Posted July 14, 2016 Catalytic converter is failing. Link to comment Share on other sites More sharing options...
Books Posted July 14, 2016 Author Share Posted July 14, 2016 Catalytic converter is failing. The car has 119k.... Catalytic converter already? I was planning to get a Hi Flow catted down pipe. Would that help? Link to comment Share on other sites More sharing options...
Carlton603 Posted July 14, 2016 Share Posted July 14, 2016 If the cat was failing, wouldn't he be getting a secondary O2 sensor code? Link to comment Share on other sites More sharing options...
Books Posted July 15, 2016 Author Share Posted July 15, 2016 If the cat was failing, wouldn't he be getting a secondary O2 sensor code? No sensor codes. Link to comment Share on other sites More sharing options...
FJuan Posted July 15, 2016 Share Posted July 15, 2016 Could you give us more detail when it starts to bog/studder under full WOT? Does it get better after 3k RPMs? My wife's balls are delicious. Link to comment Share on other sites More sharing options...
Books Posted July 15, 2016 Author Share Posted July 15, 2016 Could you give us more detail when it starts to bog/studder under full WOT? Does it get better after 3k RPMs? Its perfectly fine after 3k.. Starts immediately when I accelerate from a stand still. Link to comment Share on other sites More sharing options...
FJuan Posted July 15, 2016 Share Posted July 15, 2016 Its perfectly fine after 3k.. Starts immediately when I accelerate from a stand still. Ok, so it is the infamous Stutter before 3K. As I posted above my link that will help you with this issue. I myself and many others have this problem. Some had it corrected it by replacing the fuel lines just after the fuel regulator, and some had it corrected by a tuner. There is no defendant answer, more of a trial and error until you find the source. Read through that link and it should help you pinpoint which direction you need to go. My wife's balls are delicious. Link to comment Share on other sites More sharing options...
Books Posted July 15, 2016 Author Share Posted July 15, 2016 Ok, so it is the infamous Stutter before 3K. As I posted above my link that will help you with this issue. I myself and many others have this problem. Some had it corrected it by replacing the fuel lines just after the fuel regulator, and some had it corrected by a tuner. There is no defendant answer, more of a trial and error until you find the source. Read through that link and it should help you pinpoint which direction you need to go. Ok will do. Thank you. Link to comment Share on other sites More sharing options...
jwag74 Posted July 16, 2016 Share Posted July 16, 2016 Its perfectly fine after 3k.. Starts immediately when I accelerate from a stand still. Catalytic converter will do the exact opposite. Initial acceleration will be fine. Link to comment Share on other sites More sharing options...
FJuan Posted July 16, 2016 Share Posted July 16, 2016 Catalytic converter will do the exact opposite. Initial acceleration will be fine. In most cases, a bad Cat will throw a CELL. My wife's balls are delicious. Link to comment Share on other sites More sharing options...
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