Just bought this car, its a 2010 ctsv m6. Has long tube headers, cooling mods, 2.44 pulley, ported blower, 1000cc inj, and E85..... just bolt ons.
Old Owner told me the car was tuned by patg. The only thing i changed was the Cold air intake to a "Air raid" CAI. The old intake was a cobbled 4 1/2 inch tube with a filter on it. I also changed the hptuners software OS because i read it supports 2 bar and up or something like that.
So i did retune the maf using STFTs because of the new intake. I did not do WOT tuning because i really dont know how to do it without a wideband. The car has a wideband, its just not being logged through the scanner. So everything is "real time" so to speak.
Now on to the problem, whenever i give it a little pedal, It enters into PE mode and it bogs and has no power, almost like its a misfire. When i look at my WB, it says like 9.0. obvioulsy way to rich. Im thinking thats the culprit. This is my first tank of E85 also. When on 93 it was around 10.3 ish, but it never bogged down like it is now. I could take some fuel out through PE but i dont think thats the right way because PE is showing 1.28 which is around 11.4. So adjust the Maf curve? but how to do it accurately ?
Any help appreciated
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