[s-cars] ignition coil replacement

[Wylie Bean]

Well then I don't feel so bad, because I checked torque regularly, just didn't change them.  I noticed in the records I got with the car that the head has been heli-coiled for that.  
Wylie Bean (via blackberry)
90 cq
91 90q20v
92 UrS4
08 Q7 3.6P

-----Original Message-----
From: Tom Green <trgreen at comcast.net>

Date: Mon, 9 Mar 2009 22:07:42 
To: <s-car-list at audifans.com>
Subject: Re: [s-cars] ignition coil replacement


>
No one should be faulting you for not changing plugs, Wylie.  Perhaps  
for not looking at them and checking torque, but plug life is 60K IIRC.

I would expect a DTC if you are activating the knock sensor, Teddy.  I  
know, Bob never gets a fault code on his car, but a good California  
car should.  I know you are not one of the listers that is just  
waiting for a problem to justify the lasted mod, but I will say the  
LS2 conversion looks like a good solution if the coils start to fail.

Eyvind Spangen started this thread and asked if the wiring on his OEM  
coils could be repaired/replaced to correct his miss.  I think a  
careful inspection of the coil wires is in order even for routine  
preventive maintenance, and especially if you have a problem.  It  
doesn't take replacing all the wires if they are not burnt and  
corroded;  just renew the insulation with good quality tape if you find
cracked insulation or bare wires.  My neighbor is presently running a  
set with a lot of 3M yellow tape on the wiring while we are changing a  
coil on his set.  When I first saw these wires I couldn't believe the  
car even ran with all the opportunities for crossed signals on them.

Tom

> -----Original Message-----
> Date: Tue, 10 Mar 2009 01:00:15 +0000
> From: "Wylie Bean" <theringmeister at triad.rr.com>
> Subject: Re: [s-cars] Ignition coil replacement
> To: "Theodore Chen" <tedebearp at yahoo.com>,
> 	s-car-list-bounces at audifans.com,	"Robert Myers" <bob at chips-ur-s.com>
> Cc: s-car-list <s-car-list at audifans.com>
> Message-ID:
> 	<579845079-1236643263-cardhu_decombobulator_blackberry.rim.net-859509382- at bxe1165.bisx.prod.on.blackberry 
> >
> 	
> Content-Type: text/plain
>
> I had this exact problem today.  Little hotter than your average  
> March day.....~78dF...car had been idling and temp gauge was at 2nd  
> line..but nothing crazy.  Noticed hesitation pulling onto 4-lane  
> under light throttle that recurred twice or 3 times on the drive  
> home.  Pulled codes tonight and got 2212.. For the throttle pot.
> Not sure if that's an old code so i'll clear them tonight and  
> monitor it tomorrow.
> I should be slapped but I noticed today that i've gone 50K on this  
> set of plugs!   I bought the car in Nov 06 and have never changed  
> them.  Tsk tsk I know.
>
> Wylie Bean (via blackberry)
> 90 cq
> 91 90q20v
> 92 UrS4
> 08 Q7 3.6P
>
> -----Original Message-----
> From: Theodore Chen <tedebearp at yahoo.com>
>
> Date: Mon, 9 Mar 2009 14:51:08
> To: Robert Myers<bob at chips-ur-s.com>
> Cc: s-car-list<s-car-list at audifans.com>
> Subject: Re: [s-cars] Ignition coil replacement
>
>
>
> true.  i left out one tidbit: after a long steep uphill grade in 1st/ 
> 2nd gear that caused the coolant temperature to rise (but not into  
> the danger zone), the engine was misfiring badly.
>
> that might not be related to this power dropoff, though.  it might  
> be a knock sensor problem, all right, but not the fault of the knock  
> sensor.  after all, we get only 91 octane out here.  :(
>
>
>
> ----- Original Message ----
> From: Robert Myers <bob at chips-ur-s.com>
> To: Theodore Chen <tedebearp at yahoo.com>
> Cc: Aaron Ryba <aaronryba at yahoo.com>; s-car-list <s-car-list at audifans.com 
> >
> Sent: Monday, March 9, 2009 1:53:28 PM
> Subject: Re: [s-cars] Ignition coil replacement
>
>
> Also possible knock sensor problem, Teddy.  That's how the ECU
> handles a signal from a knock sensor.  It instantly dials back the
> timing advance and power drops briefly.
>
>
> At 04:44 PM 3/9/2009, Theodore Chen wrote:
>
>> i take it this is the one:
>> http://www.efiexpress.com/catalog/product_info.php?products_id=18
>>
>> at 168k miles, my car doesn't have any obvious misses, but sometimes
>> there is a noticeable, abrupt drop in power under acceleration that
>> goes away a few seconds later.  i suspect an ignition coil or POS is
>> gradually failing.  i haven't gotten around to replacing anything
>> yet, but the LS2 coil conversion seems like the way to go.
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