Diagnosing Coil Packs...
12-09-2001, 03:45 PM
#1
Launching!
Thread Starter
Join Date: Nov 2001
Location: Chesapeake, VA
Posts: 203
Likes: 0
Received 0 Likes
on
0 Posts
Diagnosing Coil Packs... I recently changed out my spark plugs and wires. One of the MSD wires that I replaced was horribly damaged. Can this cause any damage to a coil pack? Is there anything that I can do to verify their correct operation? They are pretty cheap though...I could pick up a couple new ones for under $50...I just don't want to throw away money on something that is perfectly fine. Thanks guys!
-Kris
-Kris
12-09-2001, 05:43 PM
#2
TECH Junkie
Join Date: Nov 2001
Location: Los Angeles
Posts: 3,604
Likes: 0
Received 0 Likes
on
0 Posts
Re: Diagnosing Coil Packs... Use an autotap, see what cyl is misfiring (if any) and swap that cylinders coil pack with another one off a good cylinder. Retest with autotap.
12-09-2001, 05:50 PM
#3
TECH Addict
Join Date: Nov 2001
Location: Illinois
Posts: 2,056
Likes: 0
Received 0 Likes
on
0 Posts
Re: Diagnosing Coil Packs... what amount of misfires on that certain cylinder should you expect from a bad coil pack???? should it be off the boards or light misfires?
12-09-2001, 07:29 PM
#4
Launching!
Thread Starter
Join Date: Nov 2001
Location: Chesapeake, VA
Posts: 203
Likes: 0
Received 0 Likes
on
0 Posts
Re: Diagnosing Coil Packs... I have never believed that AutoTap has ever HAD to report misfires for misfires that are actually occuring. I noticed a TRUE difference in the idle condition, driveability, and power after changing plugs and wires even though the SES never showed any problems and neither did the PCM.
As a result, AutoTap gives me no information. Is there some other way that I can visually or electrically inspect the coil packs for damage?
As a result, AutoTap gives me no information. Is there some other way that I can visually or electrically inspect the coil packs for damage?
