2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Changing Spark Plugs

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Old May 25, 2006 | 09:37 AM
  #1  
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Changing Spark Plugs

Ok!

I'm a little new at this, first car and all and I do alright but I've got one thing that's bugging me a little bit since I can't find a good enough diagram in the book.

I recently changed out the spark plugs, but I'm not sure if I got the wires crossed up or not. There's the four of them total, with two wires off of the Leading Coil and two off of the Trailing Coil.. does it go front coil to front plugs, back coil to back plugs like I've assumed? Or some other way? Anyone know?


Nick
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Old May 25, 2006 | 09:43 AM
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Nick, try the search next time! But in the meantime, think of it like this. Leading (L) is Lowers, Trailing, (T) is Toppers. Get it? # 1, is Front of Car, # 2, is out the butt. Get it?

Good luck my new owner,

PEACE THE DOG
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Old May 25, 2006 | 09:50 AM
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Looking from the drivers side...

T1 T2

L1 L2
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Old May 25, 2006 | 10:28 AM
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That's why you should always change one at a time, or mark the wires. Lesson learned.
I have done it before
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Old May 25, 2006 | 11:04 AM
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Originally Posted by rotorforce
That's why you should always change one at a time, or mark the wires. Lesson learned.
I have done it before
Or know what goes where.
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Old May 25, 2006 | 11:19 AM
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Well hopefully looking from the passenger's side he doesn't see them, or do you?

PEACE THE MUTT
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Old May 25, 2006 | 11:39 AM
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It is not quite clear in the answers so far, so to help a little further.

Front coil (next to the battery) is the leading coil pack.

One wire to the leading (lower) plug on the front rotor, other wire to the rear rotor's leading (lower) spark plug.

Doesn't matter which, they both fire at the same time, so you can have the front leading and rear leading plugs reversed with each other and not have any problems.

The rear coils (next to the master cyl) are the trailings.

The front of the two trailing coils, goes to the front trailing (top) spark plug). The rear coil of the two trailing coils, feeds (you guessed it) the rear rotor's trailing (top) spark plug.
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Old May 25, 2006 | 01:35 PM
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Originally Posted by Icemark
It is not quite clear in the answers so far, so to help a little further.

Front coil (next to the battery) is the leading coil pack.

One wire to the leading (lower) plug on the front rotor, other wire to the rear rotor's leading (lower) spark plug.

Doesn't matter which, they both fire at the same time, so you can have the front leading and rear leading plugs reversed with each other and not have any problems.

The rear coils (next to the master cyl) are the trailings.

The front of the two trailing coils, goes to the front trailing (top) spark plug). The rear coil of the two trailing coils, feeds (you guessed it) the rear rotor's trailing (top) spark plug.
From his post I figured he knew which was the trailing and which was the leading. Oh well, this might help too...

Attached Thumbnails Changing Spark Plugs-coils.jpg  
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