hey guys having dramas with a ute, ute is an 04 VY SS 4 spd auto gen III.
std intake and MAF and full exhaust headers and twin 2.5 with hotdogs and one muffler
after 5 grand on the dyno AFR's go from 12.8-13.0 skyrocket up to 13.6 and 13.8.... when i back off to scared to stay up it, motor doesnt det in power run.
is thios a mechanical issue, i have attatched tune and log however log doesnt have afr as my dynojet WB is a heap of SHIT and i trust the autronics one much more.
ute only made 282RWHP too and torque is about 470nm and a very wavy line on the graph...
as you can see by the tune ive added HEAPS in power enrich and the VE to try and fatten it up, no joy....
also i have tuned this MAFLESS with otr and only made 277RWHP.... this is why i tried MAF tune to see if it was me.... no AFR dramas with MAFLESS tune... both are attatched,
cheers for any help in advance this ute is running around stock atm as i wouldnt give it back to the customer like it was.
this ute is costing me a fortune in dyno hire.