[s-cars] Miss Piggy's Miss. :-(

[djdawson2 at aol.com]

 Pull that coil and plug in one of your spare spark plugs... ground the plug body and turn the engine over and watch for spark.? That would be the fastest way to determine of your issue is really ignition related.

Sounds like you might have an injector problem.


 


 

-----Original Message-----
From: Robert Myers <bob at chips-ur-s.com>
To: S-Car-List at Audifans.Com <s-car-list at audifans.com>; quattro list <quattro at audifans.com>
Sent: Thu, 22 Jan 2009 2:10 pm
Subject: [s-cars] Miss Piggy's Miss.  :-(











Hi Y'all,

Several days ago Miss Piggy ('95.5 S6 w/ RS2 mods and the 1.8t coil 
mod, etc) dropped a cylinder just before I got home with her.  Well, 
at the time the temperature was about 4 degrees F and I decided 
looking at her could wait a few days.  Today we're having a heat wave 
(all the way up to 43 F) so it seemed a good day to examine her.

Found the miss quickly enough.  Disconnected injectors one at a time 
and found that the idle got no worse when #3 was disconnected.  OK, I 
got into my Rosattobin and retrieved my standby 1.8t coil and swapped 
it into #3.  Problem solved - right?  No wrong.  Hmmm...  The #3 plug 
looked a bit doubtful so it's back to the Rosattobin for a set of 
plugs.  Changed plugs all around.  No help.

Hmmm...  Let's check compression.  150, 150, 145, 150, 125 front to 
back.  #5 looks weak but that's not where the miss is.  OK, let's 
stick in a fresh ECU w/ freshly burnt chips.  No change.  Checked for 
B+ power at the white plugs on the firewall.  DMM sez all is OK w/ 
nominal 12 volts everywhere.  Reconnected white plugs.  No change.

Suggestions?

Bob

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