rotorbrain

hi guys, i figured id ask this question in the most viewed section for 3rd gens. haha. i cant seem to figure this out. im trying to datalog my AFR's (using datalogit) and cant seem to get an accurate reading. my LDO2 reads about 10.8/10.9:1 at idle while the datalogit being way off (obviously) reads high 14's and if i rev it up it sees 18s and the such. this is obviously way off. . . since i modified an already safe map to be much richer. i trust the LDO2, but why am i getting so a BAD reading?

the ground for the 2.0A is directly under the seat using a 10mm bolt. i also grounded the datalogit box to the same place (out of an2) to try to see if thats the deal. still the same. the only thing that makes it better is changing the inputs for an1 in the aux window. i highly doubt thats what i should be doing, since i have to set it at 0=5, 5=15.

also, the red light stays on after it warms up. i dont know what thats all about. . . and i cant seem to figure out what its supposed to do when it warms up. is it supposed to stay on?

i just wanna datalog and tune my car. . . cause this is getting old and making me think theres no point in having this car.

somebody please help!!!!!!

paul

rotorbrain

dargh, i could really use some help

rotorbrain

i guess this sections viewer spectrum has changed. . .

royston

On my auxiliary AN1- 0v is value of 10 a/f and 5v is value of 20 a/f. Try this at idle and see if it is any closer.

rotorbrain

i did, and it had the negative effect. i had to go DOWN in order for it to read correctly. as in, 0v=5, 5v=15. i dont think that would have worked out properly.

pau;l