Hello all
I have a 02 v6 sc,headers,exhaust and trd air filter . I recently put in the optima battery so I was disconnected for a few hours . I know that the ecm must figure the sensors / fuel curve out again . I drove the truck around town and across the state for a total of 3 -4 hours . It does not pull like it did before the battery swap . I got 20 mpg driving across state but when I get on it usualy at 3k -3200 rpms it pulls hard to red line and now it is not . I had toyota put in the sc and headers did they prog the ecm for the mods?? or is it going to just take more time for the ecm to figure it out?
Thanks
Michael