Hey so recently my is300 2002 manual started going to crap I had to change the battery but atm my Trac off keeps flashing I can' rev over 3k or it will seem like it' red lining I have p0171 p0174 and p0301 last time I checked and I did notice after I got oil change there was some white residue on the right side of the engine bay like if something sprayed out didn' notice that till next day when I popped hood I had a k&n air intake and I installed the stock and bought new maf but I did have the p0171 174 codes before I believe me personally when I finally started driving it it would jerk a lot when id be in like 1st to 3rd like say if I let off easier it would just jerk jerk jerk but other than that it was smooth and feels great 134kish miles hopefully you guys could help me and thanks