Hp Tuners Help..

coryf79 · June 11, 2010

I am trying to add some timing(not too much 2-5*) in the "alcohol correction pe/cot" table, for when i run E85..

what i am trying to do is bring the alcohol correction table ONLY when i have e-85 in the tank..or when i am commanding a stoich near that of e-85

My question is under the gas and alcohol spark tables there is a table that's called "multi vs composition" (screen shot attached) I am aware of what interpolation means.. but what do the values represent?? is it injector duty cycle? and what do the values adjust? Anyone know this?? Or am i in the wrong ball park?

IF so, is there logic in the VCM that commands the pcm to use these tables other than if it is in PE?

HP tuners....

interpolation_table.doc

nickvrebel · June 14, 2010

good luck, I have no idea when it comes to flex fuel trucks, my truck is a gas only with active fuel management so I've never even bothered poking around in that area.

on edit:

and it's not real clear exactly what the numbers represent, just looks like two percentages, but it doesn't even clearly label what percentage is what.

coryf79 · June 14, 2010

good luck, I have no idea when it comes to flex fuel trucks, my truck is a gas only with active fuel management so I've never even bothered poking around in that area.

on edit:

and it's not real clear exactly what the numbers represent, just looks like two percentages, but it doesn't even clearly label what percentage is what.

I got it all figured out... thanks though