Hi all
I have managed to get my 93 BMW 318is (M42 engine) turbo running on my MS3 kit. Works OK at high revs, but at low revs and pick up it is misfiring, spluttering etc. It eventually settles but when you go back to idle it does it again. Max boost is 7psi via external wastegate. I have auto tune software, which has adjusted the fuel table significantly...but I still get misfires. I also see a high sync loss, which I am not sure how to solve.
I have attached msq and composite log(cut down for size)...so any help you can offer would be great.
Thanks
Ed
MS3 Misfire Low Revs
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sweetlikealemon
- MS/Extra Newbie
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- Location: Bristol, UK
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elutionsdesign
- Super MS/Extra'er
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Re: MS3 Misfire Low Revs
What type of cam trigger? I see a cam signal for each crank revolution, sometimes two.
Graduate of EFI University.
I build, repair, install and tune Megasquirt systems in North Dakota and beyond!
I build, repair, install and tune Megasquirt systems in North Dakota and beyond!
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Matt Cramer
- Super MS/Extra'er
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- Joined: Thu Apr 16, 2009 8:08 pm
Re: MS3 Misfire Low Revs
Try reversing the Ignition Input Capture setting. The spacing close to the missing tooth is a bit suspect.
Matt Cramer -1966 Dodge Dart slant six running on MS3X
Re: MS3 Misfire Low Revs
Can you post a TOOTH LOG?
1990 bmw 320i daily driver with m20b25 ms3 sequential fuel, 380cc injectors, d585 coil near plug, home made cam sync, launch control, fan control, vss, homebrew egt logging what's next????