cornfused
 

throwin the happy codes
171, and 172

lean bank one
rich bank one.


was watching my fuel trims, -10.2 then it randomly jumps to 7.8. the only time this happens is idle. i know when the code is going to be thrown when the afr dips into the 19's for no reason. then it dumps fuel and jumps to 10.5 IE the codes being thrown.

fuel adder table, or maf. maf tables are straight stage 2. {trims only deviate .8 at most at part throttle cruise} pull .04 out of the 2.1 g/cyl brought the trim up closer to zero, but still acts weird. i know i don't have an intake leak. ah well.

i have the same problem..was sitting in mcdonalds drive thru and threw 172...and at random times it kills on me when i am downshifting like from off the freeway