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Car and Auto Forums > Autos General > Re: HELP: ****s...
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Re: HELP: ****sche 944 no spark

by Steve Austin <saustin4@[EMAIL PROTECTED] > May 13, 2008 at 07:50 AM

jonb55198@[EMAIL PROTECTED]
 wrote:
> Hi Group,
> 
> The other day my car would not start.  The battery is fully charged
> and the starter cranks well.  My friend and I did some preliminary
> diagnosis with which we discovered:
> 
> 1. There is 12V at the ignition coil (both wires to ground).
> 2. The resistance/impedance numbers of the coil are within spec.
> 3. There is no water in the coil, we displaced it with lubricant and
> the protective boot looked ok anyway.
> 4. We hooked up a 2 different spark plugs to the output wire of the
> coil (the wire that goes from the coil to the cap) and then grounded
> it and turned the key into the ON position (but not the start
> position) and did not get any spark.
> 5. There is fuel in the rail.
> 
> My question is, if there is 12V at the ignition coil, and the
> resistance numbers are ok, could it still be a bad coil, or does this
> point to something else like a bad DME/ECU, a bad DME Relay, a bad
> crank position sensor or speed sensor?
> 
> I've read in other posts that when these sensors go bad, there is no
> spark... but did the authors of these posts mean to write that when
> these sensors go bad, there will NOT be 12V at the coil?  Please
> help.  Thanks.

Is there a pulse at the injectors?
 




 17 Posts in Topic:
HELP: Porsche 944 no spark
jonb55198@[EMAIL PROTECTE  2008-05-12 20:29:44 
Re: HELP: Porsche 944 no spark
Steve Austin <saustin4  2008-05-13 07:50:16 
Re: HELP: Porsche 944 no spark
jonb55198@[EMAIL PROTECTE  2008-05-13 06:42:59 
Re: HELP: Porsche 944 no spark
kludge@[EMAIL PROTECTED]   2008-05-13 10:17:25 
Re: HELP: Porsche 944 no spark
N8N <njnagel@[EMAIL PR  2008-05-13 06:50:53 
Re: HELP: Porsche 944 no spark
jonb55198@[EMAIL PROTECTE  2008-05-13 06:58:57 
Re: HELP: Porsche 944 no spark
"HLS" <nospa  2008-05-13 08:59:55 
Re: HELP: Porsche 944 no spark
"Andre" <rho  2008-05-13 09:13:45 
Re: HELP: Porsche 944 no spark
kludge@[EMAIL PROTECTED]   2008-05-13 10:18:43 
Re: HELP: Porsche 944 no spark
jonb55198@[EMAIL PROTECTE  2008-05-13 07:10:55 
Re: HELP: Porsche 944 no spark
kludge@[EMAIL PROTECTED]   2008-05-13 10:13:38 
Re: HELP: Porsche 944 no spark
darthpup <amchitka@[EM  2008-05-13 15:57:39 
Re: Porsche 944 no spark
"William Noble"  2008-05-13 23:18:46 
Re: Porsche 944 no spark: SOLUTION FOUND!
jonb55198@[EMAIL PROTECTE  2008-05-14 09:02:28 
Re: Porsche 944 no spark: SOLUTION FOUND!
"William Noble"  2008-05-14 23:01:53 
Re: HELP: Porsche 944 no spark
"Paul Hovnanian P.E.  2008-05-14 11:08:24 
Re: HELP: Porsche 944 no spark
someone@[EMAIL PROTECTED]  2008-05-14 19:04:07 

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tan12V112 Sun Nov 23 9:06:42 CST 2008.