Ignition miss, inconsistent spark

This forum is for discussing ignition setup, tuning, and troubleshooting for MS-II. Click these links for info on GM's HEI, EDIS, direct coil control, others.
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shannonspringer
MegaSquirt Newbie
Posts: 4
Joined: Tue Jan 19, 2010 4:40 pm

Ignition miss, inconsistent spark

Post by shannonspringer »

Im running megasquirt II version 3 on a 260z. code 2.89 Car starts fine and runs with a little misfire. when it misfires wideband goes super lean (21.9) car idles and has pretty good power doesn't hesitate or die. when checking with timing light i saw light miss a beat and also just around. im using the stock vr sensor in the distributor to trigger coil. negative cool wire and vr signal wire both shielded. LC-1 wide band, turbo injectors,
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Matt Cramer
Super Squirter
Posts: 2951
Joined: Sat Jul 03, 2004 11:35 am

Re: Ignition miss, incosistant spark

Post by Matt Cramer »

Please post a data log of the misfire, along with your MSQ. That may shed more light on what's causing it.
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