Diablosport Forums

U7193 WITH NEW VERSION 9 ON A 2004 CHEVY TAHOE

i THINK i DIDNT DRIVE ENOUGH MILES BETWEEN THE 2ND TO 3RD LOG. FROM THE FIRST LOG TO THE 2ND, i DID AT LEAST 3 DAYS APART.

your rpms and throttle position are lower in the 3rd log than they are in the 2nd log... so there's less engine load, which would account for the differences between the log data...

I would say, adjust your slope to be at -4%, and you should be golden...

OK i WILL TRY THAT. i'LL DO ANOTHER TEST IN A FEW DAYS JUST TO SEE WHAT HAPPENS

I got a new issue. I noticed after 50 miles that the check engine light came on. I checked the code.. PO420 catalyst system efficiency below threshold (bank1) I do have magnaflow cats on and all the o2 sensors are all there but this never happened until I changed the injector slope to shot more gas at -4%. What should I do?

do a new cruising log... see where your ltft's are at now...

Ok so don't clear the code yet? Or clear it and do a new log?

you can clear it now... doesn't matter...

ok got the log. IT TOLD ME TO INCREASE +2% AGAIN.

U7193 V.9 2004 CHEVY TAHOE

ok... so go up by +2% from wherever you have it set at now, and then that's it... leave it...

ok