Annoying misfire
#1
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Annoying misfire
well i had been trying to work around these random misfires in higher boost with fuel and timing. i was about to start looking into my ignition system. Went to get gas at my usual mobil station....misfire seems to be gone. Two weeks ago when doing some road tuning i needed gas so i stopped and got gas a sunoco instead of my usual mobil. I guess the car didn't like that gas. so much time wasted
i do need to someone to make a pnp cop solution for my megasquirt system.
i do need to someone to make a pnp cop solution for my megasquirt system.
#2
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I'll build a PNP harness for you. $40, soldered and heatshrunk, you supply the cops and a 1.6 ignitor.
I am building them for a couple other members already. Just waiting on my valve cover to show up (been waiting for a few weeks now) so I can get started.
I am building them for a couple other members already. Just waiting on my valve cover to show up (been waiting for a few weeks now) so I can get started.
#3
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sign me up and i'll find the coils, i already have a 1.6 ignitor running in my car, do i need anther one?
on a sidenote, how dangerous is a misfire in heavy boost, it doesn't seem to knock or ping, just quick hitch with a fast small backfire in the exhaust and then back on it's merry way.
#4
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Well what I do is gut the ignitor and scavenge it for a connector. It makes the COPs trully PNP and look factory installed. IMO, it's a better, more stable connection than just pushing spades into the car's harness (which was my original plan).
#8
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dude that would rock if you're willing to do that for me. i really need to finish up this car but this misfire is holding me back. I really hope a nice set of cops fix it. my setup now at 15 psi feels really good when it doesn't skip a beat. I killed a newer gti with at least an exhaust yesterday. from about 30-70 pulled about 6 cars on him
#9
I know you guys are going to kill me for digging this up, but I assume the COP setup cured your random missfire issues? I'm getting very random missfires with no knock or ping. It feels like someone hammers the brakes halfway through a pull at 14-15psi and it ONLY does it while deep into boost.
#19
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any miata with a LINK is boring. You down at least 20hp at every boost level because of the weak basemap no one tunes. You could like others have stated have an ignition related issue, ie, blowout.