05-24-2008, 05:20 PM
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Registered User
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missing
i did a plug change on the car and it started missing every once and a while. all the COP's are on tight and connections are good. ill be driving and it'll be fine then it will miss a few steps and pick back up and be ok??? im pullin my hair out on this one... any ideas
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05-24-2008, 05:22 PM
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#2 | |
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Purple drank for the sippy cup
 
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Crack a plug perhaps??
Moisture in the plug bore??
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Built 00 Windsor engine, .20 over, 11.6:1cr, fully ported heads, Hardballer intake w/cooling mod, Scat rods, Probe pistons, Cobra crank, tri-metal Clevite race bearings, VT Stage 2 N/A cams, adjustable cam gears, Canton windage tray, MMR oil pump, Cobra pick up, 75MM Accufab t-body, Dragon plenum, JLT CAI, 24# injectors, Bassani mid lengths, mufflers & O/R X,255lph fuel pump, BBK FPR, Fidanza aluminum flywheel, AJE K-member, ARP hardware everywhere, X-Cal SCT custom tuned, 3.73's, Pro 5.0, polygraphite motor mounts. |
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05-24-2008, 05:27 PM
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Purple drank for the sippy cup
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Have you gotten a MIL yet? And if so, just scan it, see where it points on a misfire code and make life easier.
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Quote:
Built 00 Windsor engine, .20 over, 11.6:1cr, fully ported heads, Hardballer intake w/cooling mod, Scat rods, Probe pistons, Cobra crank, tri-metal Clevite race bearings, VT Stage 2 N/A cams, adjustable cam gears, Canton windage tray, MMR oil pump, Cobra pick up, 75MM Accufab t-body, Dragon plenum, JLT CAI, 24# injectors, Bassani mid lengths, mufflers & O/R X,255lph fuel pump, BBK FPR, Fidanza aluminum flywheel, AJE K-member, ARP hardware everywhere, X-Cal SCT custom tuned, 3.73's, Pro 5.0, polygraphite motor mounts. |
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05-24-2008, 06:30 PM
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#6 |
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Evil Angel
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Just a lil' info... When mine was misfiring, it took it a while before it popped the MIL. I think it was at least a week... actually no... now that I think about it, I don't think it popped a code at all. I took it to Jody when he was at his former employer and he scanned it to find my #3 cylinder was misfiring. He called the misfire before he even scanned it... he's kinda good like that. The misfire was due to moisture in the bore as he mentioned. Good luck!
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 2002 Mustang GT, 271hp/306tq on 87 CMR Tune, Roush short throw rally style shifter, King Cobra Clutch, Roush CAI, C&L Plenum, BBK/Roush 75mm T/B, Kooks L/Ts w/catted X, Bassani Cat-back, Eibach Pro-kit Springs, Energy Suspension bushings, KYB AGX's, Hotchkis C/C plates, UPR ProStreet rear control arms, Brembo Drilled/Hawk pads, BFG's, Dual Halo Projector 8k HIDs, Kenwood: KDC-X790, KAC-9102D, KAC-8402; Infinity: 6810CS, 6812CF; Orion: P series subs all powered by Optima  My car http://www.cardomain.com/ride/2628572 My truck http://www.cardomain.com/ride/2206751 |
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05-26-2008, 01:39 AM
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#7 | |
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4 valve FTW
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COPs. Should read around 5.5k ohm resistance. Jody suggested a weak COP when I was having problems and he was right. It was a bad COP for cyclinder 5 which measured around 8k ohms of resistance. I had problems with interm misfire for about a year when no check engine - finally nailed it after getting consistent P0305
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SLP loud mouth cat-back, Pro 5.0 short throw, 4.30's, Moser 31 spline axles, Eaton carrier, Steeda sport springs, chrome 18x9 18x10 Saleens, NT555's 285/40/18 rear, MAC O/R Hpipe, RAM power grip dual friction..... 
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