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Weird map readings on datalog while car not on.........

Posted: Sat Mar 01, 2008 10:43 pm
by Axix23
I have noticed a few times that i been getting some weird map readings of up/down while my car isn't even cranked.... Check this datalog out, and at 1 point, my secondary o2 current moved too, wtf? Is it normal for my map reading to sometimes go up/down while the car isn't even on? I always thought it should stay at the same place until cranked... I looked at my map sensor connectors and they all seem to be fine... I just replaced my old oem map sensor with a new oem stock map sensor.. WTF?? I am starting to think my weird lean issues has something to do with my map sensor or map sensor harness, but don't understand it at all...

Posted: Sun Mar 02, 2008 6:34 am
by magnEsium
Your sensors will be giving off voltages to the ECU while your key is turned on to Accessory II, voltages change which reflect MAP changes, as well as other changes in whatever you're datalogging.

Nothing to be worried about, my car does it too.

Posted: Tue Mar 04, 2008 9:48 am
by Axix23
lol, didn't u reply to my post on clubrsx too?