stumble and die

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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nasse
MegaSquirt Newbie
Posts: 1
Joined: Wed Aug 10, 2011 9:48 am

stumble and die

Post by nasse »

hi all
I have a type 4 beetle engine with MSII and EDIS. but latley i has become troublesome. whatever rpm im in it stumbles, and sometimes so bad it dies.
but if i turn the ignition off an on again its starts fine but keeps stumbling until it dies the next time.
I was using a wideband LC1 recentley by it is no longer connected. however I have been using another offline lambda reader and it seems fine.
enclosed is a log, i was keeping it on high idle and suddenley it dies.
any tougts?

Nasse
Matt Cramer
Super Squirter
Posts: 2951
Joined: Sat Jul 03, 2004 11:35 am

Re: stumble and die

Post by Matt Cramer »

It looks as if the ECU suddenly lost the RPM signal.
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