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06-04-2008, 07:41 PM
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#1 (permalink) | |
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Secretary of the Inferior
 
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"Random Multiple Misfires"
Not on my car - on my buddy's Mazda MPV (which also happens to be a Duratec 25).
All of a sudden it started running really rough; shaking at idle, way down on power. CEL code was a 1512 or something like that - "Random Multiple Misfires". I suspect the coil pack; it has 81,000 miles on it. I replaced the plugs a few weeks ago, and it's been perfect ever since, until now. I figure if it was a wire or wire(s), it would be for a specific cylinder instead of "random multiple" misfires. I'm going to check the resistance on the coil pack tomorrow after work, if I can find the info on how to do that. If anyone else has any practical advice, let's hear it! Thanks.
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Andy- Ohio NECO's "Green Guy"  2nd Place - Best Mild CougarFest 07 & 08 2000 Tourmaline Green Roush clone Proud ND4SPD Army Dog Soldier Complete mod list & photos at OHIO CUSTOMS  B3NN3TT CougarDB CarDomain Motortopia MySpace deviantART Last.fm Quote:
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06-05-2008, 08:44 AM
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#2 (permalink) |
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NECO Member
 
Join Date: Apr 2005
Location: montrιal
Posts: 588
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Re: "Random Multiple Misfires"
Mine was misfiring big time with no cel at all.Had a new coil pack and plugs at the time so I replaced the plug wires and never misfired again.
The coil packs I've replaced on Fords till now were all bulging from inner corrosion or had a crack in them. |
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06-05-2008, 09:59 AM
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#3 (permalink) |
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NECO Member
Join Date: Sep 2006
Location: Novgorod, Russia
Posts: 195
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Re: "Random Multiple Misfires"
Bad injector maybe... Time to take apart a fuel rail and manually clean each injector using carb cleaner
Here is the link: VW PASSAT B5 - ???????? ???????? ?????? ?????? Everything is in Russian but take a look at the pic, where he connects a carb cleaner to the injector and manually closes the circuit connected to the battery
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1999 Black Cougar 2.5 V6 (ATX, AEM intake, gutted precats, Trubendz&Magnaflow exhaust) |
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06-05-2008, 11:16 AM
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#4 (permalink) | ||
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Secretary of the Inferior
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Re: "Random Multiple Misfires"
Quote:
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Andy- Ohio NECO's "Green Guy" 2nd Place - Best Mild CougarFest 07 & 08 2000 Tourmaline Green Roush clone Proud ND4SPD Army Dog Soldier Complete mod list & photos at OHIO CUSTOMS B3NN3TT CougarDB CarDomain Motortopia MySpace deviantART Last.fm Quote:
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06-05-2008, 11:30 AM
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#5 (permalink) | |
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Guess who's pumpin!? :)
 
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Re: "Random Multiple Misfires"
Quote:
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The One&Only! C.A.R.B # FU50 
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06-05-2008, 01:12 PM
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#6 (permalink) |
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Correct > Quick
 
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Re: "Random Multiple Misfires"
Well, according to the Internet, a Mazda CEL of 1512 is IMRC Stuck Closed (maybe Bank 1 Stuck Closed).
Of course, this thread was the fourth hit on my results page, so... 
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Mark (AIM:LaserRedCat) 2001 Laser Red Cougar V6 ATX (99 Rio Red R.I.P.) * Ohio NECO * 1998 T.Red Contour V6 ATX FCO 1997 Medium Willow Taurus 3.0 OHV ATX TCCA 1993 Bright Red Tempo 2.3 ATX |
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06-05-2008, 03:49 PM
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#7 (permalink) | ||
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Secretary of the Inferior
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Re: "Random Multiple Misfires"
Quote:
__________________
Andy- Ohio NECO's "Green Guy" 2nd Place - Best Mild CougarFest 07 & 08 2000 Tourmaline Green Roush clone Proud ND4SPD Army Dog Soldier Complete mod list & photos at OHIO CUSTOMS B3NN3TT CougarDB CarDomain Motortopia MySpace deviantART Last.fm Quote:
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