Thread: Gins data stream

Basicly im getting horid gas mileage 10-12mpg and for one i have no cat and 1500 miles im not getting any codes for it.
i have done everything regarding tune up so i figured someone might be able to point me in the right direction given this data



Intake air temp 149 degf

spark 8 deg 4k rpm-30 deg

air fuel ratio 14.7:1

maf 4.71 - 18.06 g/s

map 5.61- 11.52 inHG

fuel pressure 58psi

long term fuel trim -4 to 6

engine load 7-16%

02s1 0-890 mv

evap pruge sol 12-62%

ect sensor 203-214 degf

ho2s 1 heater .62 amp

ho2s 2 195-751 mv

ho2s 2 heater .56-.58 amp

ignition 1 signal 13.7v

injector PWM 2.9-3.0 msec

st fuel trim 1-4 %

start up coolant 216 degf

tp angle 1%

kr at wot 0

need anything else lmk

i was thinking seeing the o2s 1 is reading 0-890 mv that meens there is a short cus it should fluctuate but never go to 0 so i changed the front o2 sensor and so far mpg seem ok but i havnt driven enough for anything to cycle so ima give it the drive to pa and see if my cat code finnally apears and see how my mpg are on the way there all highway

You'll never see the o2 mv drop to zero unless you hit the decel fuel cutoff mode.

It should always bounce around from 50-900ish all the time, and the rear o2 I think will stay around 400-600 if the cat is working correctly, but I'm not 100% sure on that.