so finally got things right as far as wiring and readings with the help from venders and members on this site .my ? is after warm up my o2s are at 840-850 or so fp is at 42 is ok to bring down the fp till my o2s are at the 777 orso or will doing that hurt me when I need it at wot?e85 .
?about o2s fuel pressure and on e85 .
- Thread starter bpman1234
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BEATAV8
The Engine Whisperer
- Joined
- Feb 14, 2002
- Messages
- 5,631
Leave the fuel pressure where it's at. The TT 6.1 chip has control of the idle fueling.
BEATAV8
The Engine Whisperer
- Joined
- Feb 14, 2002
- Messages
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yeah the chip does an "idle learn" where it idles at stoichiometric for a bit in order to adjust the BLM at idle. Once it has that it goes open loop on idle and richens it up from stoichiometric. I just can't recall if it does this once or if it does this more often. If it only happens once then you might try re-setting the chip to get it to execute the idle learn again.
BEATAV8
The Engine Whisperer
- Joined
- Feb 14, 2002
- Messages
- 5,631
if you have a powerlogger you can watch it run through the routine. The "closed loop" box will be checked at low idle and after a while it will go open loop and richen up.
