Plug Firing order? - RX8Club.com



Reply
 
 
 
Thread Tools Search this Thread Rate Thread
Old 08-20-2007, 11:36 PM   #1
I4NI
Thread Starter
 
Silver_Surfer's Avatar
 
Join Date: Jun 2006
Location: Hawaii
Posts: 833
Plug Firing order?

OK, I feel really dumb asking this question(First nonpiston car). Why do we have leading and trailing plugs? How do they fire? One on new fuel/air mixture(lleading) and once more on already burnt fuel? Or another way? The reason is I just had a recall performed and only leading plugs were replaced. I only read the invoice when I got home.
Silver_Surfer is offline   Reply With Quote
Old 08-21-2007, 01:24 AM   #2
Registered
 
MrCairo's Avatar
 
Join Date: Jul 2007
Location: Glendale, AZ
Posts: 101
Quote:
Originally Posted by Silver_Surfer View Post
OK, I feel really dumb asking this question(First nonpiston car). Why do we have leading and trailing plugs? How do they fire? One on new fuel/air mixture(lleading) and once more on already burnt fuel? Or another way? The reason is I just had a recall performed and only leading plugs were replaced. I only read the invoice when I got home.
You basically have the idea down about the leading and trailing plugs. Why was the leading replaced? Without seeing the recall it only becomes speculation but for starters, the leading plug fires twice during the ignition sequence while the trailing only fires once. Maybe there was an issue with the reliability of the leading plug.

Of course, always consult the mighty Google as well (homage to MUGATU )
Here are a few sites that I dug up:
http://www.silverbulletrx7.com/plugs/
http://www.rotaryengineillustrated.c...-ignition.html

Cheers

Last edited by MrCairo; 08-21-2007 at 01:30 AM.
MrCairo is offline   Reply With Quote
Old 08-21-2007, 02:19 AM   #3
I4NI
Thread Starter
 
Silver_Surfer's Avatar
 
Join Date: Jun 2006
Location: Hawaii
Posts: 833
Voluntary Eission Recall R4206F
Inculdes cat inspection and test. Replace leading plugs. Reprogram PCM new ca: N3ZA-18881-H
Silver_Surfer is offline   Reply With Quote
Old 08-21-2007, 03:36 AM   #4
Zoom-Freakin'-Zoom
iTrader: (5)
 
swoope's Avatar
 
Join Date: Jan 2004
Location: orlando, fl
Posts: 14,460
first coil goes to the 1st rotor leading plug.. the lower one...
second coil goes to the 1st rotor trailing plug.. the upper one.

all from the front of the car to the back..

repeat for the 3 and 4th coil..

beers
swoope is offline   Reply With Quote
Old 08-21-2007, 07:16 AM   #5
Banned
iTrader: (3)
 
Join Date: Oct 2003
Location: Under my car
Posts: 16,386
The trailing does a LOT more than "clean up" the combustion process.
MazdaManiac is offline   Reply With Quote
Old 08-21-2007, 07:51 PM   #6
Registered User
 
Join Date: Jul 2005
Posts: 124
I thought there was 4 separate signals now for the Renesis setup so therefore the trailing plugs do not fire a waste spark anymore?

That and I thought I read somewhere that during idle rpm's or so the trailing actually precedes the leading for a better combustion?
F22C1 is offline   Reply With Quote
Old 08-22-2007, 03:45 AM   #7
Banned
iTrader: (3)
 
Join Date: Oct 2003
Location: Under my car
Posts: 16,386
Yes.
MazdaManiac is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Still shutting off after 1 to 2 hrs. of driving. Audio Concepts ATL New Member Forum 10 08-13-2016 02:58 PM
SBG: RX-8 Plug and Play IGN-1A Ignition Coil Kit SBGarage Sakebomb Garage 2 07-20-2016 09:32 PM
Little different hard start issue... D13 Series I Trouble Shooting 5 08-28-2015 01:21 PM
Seeking advice from a Wankel Veteran Modern2Strokez New Member Forum 7 08-16-2015 02:07 AM


Tags
04, 2, 2004, 2005, coil, firing, ignition, mazda, order, plug, r8, rx, rx8, sequence, wiring

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 06:43 PM.


All content Copyright 2007 by Internet Brands, Inc.