XPost: sci.electronics.repair, alt.home.repair   
   From: kludge@panix.com   
      
   Xeno   wrote:   
   >On 24/4/2023 5:09 am, Michael wrote:   
   >> On Sun, 23 Apr 2023 23:00:56 +0530, mike wrote:   
   >>   
   >>> You don't seem to know engines well, so allow me to explain that when the   
   >>> engine sees a misfire in 1 out of 200 revolutions (most cars), the engine   
   >>> control module permanently shuts down the spark to that cylinder (to   
   >>> protect the cat).   
   >>   
   >> Does the PCM shut down the spark or the fuel to that misfiring cylinder?   
   >   
   >It will definitely shut off the fuel - if nothing else. If you have fuel   
   >but no spark you will be flooding the cat with raw fuel. That's bad.   
      
   It's bad in the sense that it will burn up the converter but... that might   
   be an advantage if you have a gunked-up converter.  At least if it doesn't   
   explode.   
   --scott   
   --   
   "C'est un Nagra. C'est suisse, et tres, tres precis."   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)