[s-cars] bad coils

Paul Gailus gailus at mindspring.com
Wed Mar 12 20:03:48 EST 2003


It sounds like Kevin's wrench may have things under control...??
However, in cases where a miss doesn't appear except under
load, you may be able to diagnose the problem by temporarily
substituing some cheap plugs gapped significantly wider
to raise the firing voltage and put more stress on the coils,
connectors, and PSOs. If the miss then appears at idle or with
a small load from turning on the AC, then the injector pulling
technique can be used to isolate the bad component(s).

With a gap of 0.060", the firing voltage will still be no more
than with the standard 0.025" gap at 25 PSI boost, as long
as you keep the manifold pressure less than atmospheric
(in other words, if you stay off the boost).

Paul

----- Original Message -----
From: <kcquiros at hartfordfinancial.com>
To: <KrasuskyP at FirstInterBank.com>; <James.Murray at ericsson.ca>;
<s-car-list at audifans.com>
Cc: <kcquiros at hartfordfinancial.com>
Sent: Wednesday, March 12, 2003 12:29 PM
Subject: RE: RE: [s-cars] bad coils


"Franco", my wrench, who by the way, tries not to smile when he sees me(but
can't help it) 'cause he knows I give more to him then the gov't. Anyway, he
ran a full "test" of the car to check the plugs and coils and discovered one
was shot while another was getting worse. The car originally hesitated under
load but now does it all the time. Even if I drive without load the car
continues to "miss" constantly. I thought it was the plugs but those are
fine. So he tells me it's the 2nd and forth coil. I assume this is the end
of the problem but it seems like it could be something else too?


-----Original Message-----
From:     Paul Krasusky <KrasuskyP at FirstInterBank.com>
Sent:     Wed, 12 Mar 2003 13:02:49 -0500
To:       "'James Murray (LMC)'"
<James.Murray at ericsson.ca>;"'s-car-list at audifans.com'"
<s-car-list at audifans.com>
Cc:       "'kcquiros at hartfordfinancial.com'"
<kcquiros at hartfordfinancial.com>
Subject:  RE: [s-cars] bad coils



OK, sorry all, this story's being told backwards...



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