I have recently been experiencing some bad drivability issues. The car during normal cruising stumbles and bucks really bad. The issue seems to be random as I cannot duplicate the problem at a specific speed or RPM. The only factor that is the same is it only occurs while cruising. What I refer to as cruise mode is driving at a steady speed and TPS around .70 - .80 (no off and on throttle). A quick review of my PL files show the bucking and stumbling are result of erratic drops in O’2s. I have never experienced this issue before and have replaced the coil, ignition and ECM with known good one. I’m currently running a Red’s Double Pumper purchased New that is about 2 Years old now and running Turbo Tweaks SD (Mafless) chip. Also no codes are thrown while this stumble happens.
Can someone review my PL files and let me know what you think is the problem and what I can do to fix it. (You will see the erratic spikes in O2 voltage on the files and speed ranging from 40-60 MPH)
PL File 1 Frame 124-131
PL File 2 Frame 81-91
PL File 3 Frame 217-220 & 389-406
Can someone review my PL files and let me know what you think is the problem and what I can do to fix it. (You will see the erratic spikes in O2 voltage on the files and speed ranging from 40-60 MPH)
PL File 1 Frame 124-131
PL File 2 Frame 81-91
PL File 3 Frame 217-220 & 389-406