[Diy_efi] Need help from the experts diagnosing lean state

ralph granchelli rgranchelli at yahoo.com
Sun Feb 20 16:02:30 GMT 2005


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The scope is an older tek analog mainframe scope I have had for years with 500MHZ Bw and 500psec/div resolution. It should see anything that can occur there. THe question is will I be able to tell what it all means since I have no experience looking at good or bad injectors.
 
Since it is still raining here non stop for days now I will probably not get a chance to take a look at it until I can break out the ark to get to the garage
 
Rgds,
 
RG
AZ

J <TheGreatJ at charter.net> wrote:
If your lab scope has sufficient resolution, you can pick up mechanical injector problems through the electrical signature.  The movement of the pintle affects the magnetic field created by the coil, and therefore affects the current flow through the coil.  Clogged injectors are hard to find this way, but a "sluggish" or weak injector will usually show up.
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<DIV>The scope is an older&nbsp;tek analog mainframe&nbsp;scope I have had for years&nbsp;with 500MHZ Bw and 500psec/div resolution. It should see anything that can occur there. THe question is will I be able to tell what it all means since I have no experience looking at good or bad injectors.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Since it is still raining here non stop for days now I will probably not get a chance to take a look at it until I can break out the ark to get to the garage</DIV>
<DIV>&nbsp;</DIV>
<DIV>Rgds,</DIV>
<DIV>&nbsp;</DIV>
<DIV>RG</DIV>
<DIV>AZ<BR><BR><B><I>J &lt;TheGreatJ at charter.net&gt;</I></B> wrote:</DIV>
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<DIV><FONT face=Arial size=2>If your lab scope has sufficient resolution, you can pick up mechanical injector problems through the electrical signature.&nbsp;&nbsp;The movement of the pintle affects the magnetic field created by the coil, and therefore affects the current flow through the coil.&nbsp; Clogged injectors are hard to find this way, but a "sluggish" or weak injector will usually show up.</FONT></DIV>_______________________________________________<BR>diy_efi mailing list<BR>diy_efi at diy-efi.org<BR>http://lists.diy-efi.org/mailman/listinfo/diy_efi<BR></BLOCKQUOTE><p>
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