Everyime I drive at 1/2 tp 3/4 throttle @3 psi it feels fine. But everytime I drive at WOT and the boost to get up to 5-6 psi my car feels like it hit a fuel cut. Just the othre day I was driving on the freeway and I had to pass a car up so in 5th gear @3200 rpm I floor it and my car just feels like it said 'Nah...ain't gonna accelerate'. I think it might be my VC1 fucking up and letting my ECU see boost. All A/F readings are fine. Anyone have any ideas
#19400, "RE: MAP sees boost" In response to Reply # 0
Sensor check screen on your AFC .. if the MAP voltage goes over 4.7x that's your problem..
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#19402, "RE: MAP sees boost" In response to Reply # 2
I believe there are two possible problems: 1) the ecu is pulling timing because it sees "boost" 2) either the car is running really rich or lean (fuel cut). I experienced this similar problem when I first got my turbo kit installed. My problem turned out to be a fuel problem--the fuel system was lean at WOT. From a low to mid throttle on the freeway, the car doesn't want to accelerate. It felt sluggish and jerks sometimes. Once I got a bigger in-tank fuel pump and an S-AFC, the car ran very strong. By the same token, if the fuel system is rich, the car will also hesitate, especially if the egt temp and O2 reading is in a good range.
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