I've been thinking about replacing the coil rail for a while. I just hate it. Pain in the ass to get in and out and hard to diagnose a misfire with it. I'd probably go with something like this, 2 of them: http://www.msdignition.com/Products/Coi ... _Pack.aspx or one of those coil packs off a 6 cylinder like this: http://easyautodiagnostics.com/img-home ... l-pack.jpg
The only think I am concerned about is what the PCM is looking for and what would specs would be needed to keep the PCM safe. I asked MSD about retrofitting on and they said that if the wrong coil is used PCM damage could result. However, I don't know if that is just their blanket response for something they don't offer a bolt in option for.
Any ideas?
Replacing the 00+ coil rail
- SilverXJ
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- Joined: February 14th, 2008, 7:14 am
- Stroker Displacement: 4.6L
- Vehicle Year: 2000
- Vehicle Make: Jeep
- Vehicle Model: Cherokee
- Location: Radford, Va
Replacing the 00+ coil rail
2000 XJ. 4.6L stroker
00+ Viper Coil Swap | CPS Timing Increase Mod | Fabricated Airbox | Dash bezel, Arduino Multigauge & RD Conceal
Eat, breath, drink, sleep, Jeep, drink
00+ Viper Coil Swap | CPS Timing Increase Mod | Fabricated Airbox | Dash bezel, Arduino Multigauge & RD Conceal
Eat, breath, drink, sleep, Jeep, drink
- gradon
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Re: Replacing the 00+ coild rail
Measure your current rail primary resistance then measure those msds? I like the idea off doing away with the dizzy, but not having to take off and put on a whole rail to diagnose, and not throwing away and having to buy another whole rail when only 1 of the 3 packs are bad.
- SilverXJ
- Global Moderator
- Posts: 5790
- Joined: February 14th, 2008, 7:14 am
- Stroker Displacement: 4.6L
- Vehicle Year: 2000
- Vehicle Make: Jeep
- Vehicle Model: Cherokee
- Location: Radford, Va
Re: Replacing the 00+ coil rail
Having it buried under the heater lines, throttle body cables, ac compressor, upper rad hose, etc, makes it a real pain to remove. The only reason it is like that is because of Mercedes. they used a similar setup on their V12 engine, except that they have two rails and two plugs per cylinder.
2000 XJ. 4.6L stroker
00+ Viper Coil Swap | CPS Timing Increase Mod | Fabricated Airbox | Dash bezel, Arduino Multigauge & RD Conceal
Eat, breath, drink, sleep, Jeep, drink
00+ Viper Coil Swap | CPS Timing Increase Mod | Fabricated Airbox | Dash bezel, Arduino Multigauge & RD Conceal
Eat, breath, drink, sleep, Jeep, drink
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