Cutting out on shifts
#1
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Cutting out on shifts
Ever since I had my car tuned I've had this issue. Didn't mention it to the tuner for some reason, but I'll ask him when I hit the dyno in the next month or so
Whats happening is that after I shift and mash back on the throttle, the engine cuts out for a second, then kicks back in again and pulls just fine. It kinda pops and doesnt do anything then goes like hell after it starts going again
You can hear it in this video from the drag strip when the problem is most apparent (mainly the 1-2 shift, and 2-3)
http://www.youtube.com/watch?v=bg6eM_Qt3c0
Change the plugs every 5k miles, NGK BKR7E gapped to .025. Plug wire resistance is well within spec. Only running 7psi at the moment due to boost controller issues
Whats happening is that after I shift and mash back on the throttle, the engine cuts out for a second, then kicks back in again and pulls just fine. It kinda pops and doesnt do anything then goes like hell after it starts going again
You can hear it in this video from the drag strip when the problem is most apparent (mainly the 1-2 shift, and 2-3)
http://www.youtube.com/watch?v=bg6eM_Qt3c0
Change the plugs every 5k miles, NGK BKR7E gapped to .025. Plug wire resistance is well within spec. Only running 7psi at the moment due to boost controller issues
#4
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Re: Cutting out on shifts
Is your wideband input to the ecu? I used to have that problem when lean protection would go off from being a tad lean in between shifts
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Re: Cutting out on shifts
No, its just to the gauge. I'm gonna pull the plugs tomorrow and see if gapping them down tighter helps, but thats just a shot in the dark honestly. Its easy though, so I might as well give it a try
I was maybe thinking of trying to datalog the AFR to see if it spikes lean or rich at those points. I wasnt really watching the gauge during the runs, heh. Just need to find my datalogging cables for the wideband...
I was maybe thinking of trying to datalog the AFR to see if it spikes lean or rich at those points. I wasnt really watching the gauge during the runs, heh. Just need to find my datalogging cables for the wideband...
#6
Re: Cutting out on shifts
oh wow, i have the same exact problem with my car. when i go 100% throttle it would pause and then kick it. thought something is wrong with my car. i'm also running NepTune. i took it back to my tuner and he did something, but i since haven't tried shifting at 100% throttle to see if the problem was fixed
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