WTF, was running good
#1
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okay so yesterday i ran my car in autotune etc got it running good, afr's were good yay. go out today start it up and its running like a bag, rich as hell. plug in my computer, reload tune from yesterday and the idle smoothes out but its still rich (12.0 afr's) at idle. Kinda confused me why it would do that, so i get in the car go to drive it out of the garage, once i touch the gas it goes way lean and stalls out. So i loaded the stock tune and its does the same thing. Now when i went to start it before i reloaded my tune it made a huge pop sound when i turned the key to on, like the cylinders were full of fuel. could it have damaged plugs? injectors? ![vash](https://www.miataturbo.net/images/smilies/vash.gif)
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#4
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White--
Send a datalog and your msq to websales@diyautotune.com and I'll have a look
Chris--
That sounds more like a wideband calibration error to me. Car wouldn't idle at 8:1. Try going through a complete sensor calibration cycle and see what happens.
Send a datalog and your msq to websales@diyautotune.com and I'll have a look
Chris--
That sounds more like a wideband calibration error to me. Car wouldn't idle at 8:1. Try going through a complete sensor calibration cycle and see what happens.
#12
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ok so i just changed the coil and ignitor for the hell of it with no difference. like i said before it idles smooth but its still rich (12.0) but once you open the throttle it goes lean and stalls out, now if i really slowly open the throttle it will rev up but only until about 3 grand and it stalls out, I'm running the same tune i had on sat when it ran awsome. idle afrs at 14.0, cruise at 16.0ish and 13 ish when im on it. I made a log of it idling/ trying to rev it up
datalog201003161712.xls
i have checked everything but the injectors but it dles fine ect so can't see them being an issue so mechanically im out of ideas. unless the motors just fucked, cant see that tho
miata tune.msq
datalog201003161712.xls
i have checked everything but the injectors but it dles fine ect so can't see them being an issue so mechanically im out of ideas. unless the motors just fucked, cant see that tho
miata tune.msq
#16
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Something's very fishy with your MAP signal. Check the MAP hose to make sure it's not pinched on something. The same thing that happens when you suck on a straw then put your finger on top of it could be happening to your sensor. Or the problem could be deeper.
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