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I just got a custom tune done from texas speed w/ their special they had last month. It runs much better now, but my check engine light came on, durring normal driving, so i scanned it and this is what it came up with-
P0171- system too lean, left bank on 4 sensor systems
P0174- system too lean, right bank
I understand its telling me that im running too lean, but is that due to the tuning or do i need to upgrade my pump or injectors? What do you guys think?
_davjos81- 02 v6<br /><a href=\"http://www.cardomain.com/id/davjos81\" target=\"_blank\">www.cardomain.com/id/davjos81 </a><br /><a href=\"http://community.webshots.com/user/davjos81\" target=\"_blank\"> <a href=\"http://community.webshots.com/user/davjos81\" target=\"_blank\">http://community.webshots.com/user/davjos81</a> </a> <br /><br />-over $8,000 invested! Too many mods to list, just check out my site!!
Fuel pressure
vacuum leaks
intake leak
exhaust leak before the 02's
Well, i know i have an exhaust leak somewhere on the drivers side. Not sure if its the header or the EGR though. I just replaced the gaskets on the headers when i did a head swap. Ive gone back twice since then and retightened everything, but i cant stop the leak.
Also, where can i get an a/f readout?
_davjos81- 02 v6<br /><a href=\"http://www.cardomain.com/id/davjos81\" target=\"_blank\">www.cardomain.com/id/davjos81 </a><br /><a href=\"http://community.webshots.com/user/davjos81\" target=\"_blank\"> <a href=\"http://community.webshots.com/user/davjos81\" target=\"_blank\">http://community.webshots.com/user/davjos81</a> </a> <br /><br />-over $8,000 invested! Too many mods to list, just check out my site!!
Originally posted by davjos81: I just got a custom tune done from texas speed w/ their special they had last month. It runs much better now, but my check engine light came on, durring normal driving, so i scanned it and this is what it came up with-
P0171- system too lean, left bank on 4 sensor systems
P0174- system too lean, right bank
I understand its telling me that im running too lean, but is that due to the tuning or do i need to upgrade my pump or injectors? What do you guys think?
I had the same problem on highway. There is no leaks that I can find. Just comes on. It happened 3 times, and for last 4 month its ok. :rolleyes: ??
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