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Old 11-22-2012, 10:18 AM   #1
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Rb20det misfire and smell gas!!!

i have a stock rb20 in a s14 and i just got it tuned last week and wireing issue fixed. so i started noticing that at low speeds the car would misfire, got worse and worse. now i smell gas from exaust and it misfires and horriable ide. anyone with ideas?
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Old 11-22-2012, 10:54 AM   #2
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check coil packs and injectors
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Old 11-22-2012, 12:06 PM   #3
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check to see if the plugs are gapped correctly. If its been a while since they have been replaced i would recommend changing them. Its cheap and easy. Most of the problems i get from people that bring their RB to me is improperly gapped plugs. also check to see if you have any leaks in the vacuum system.
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Old 11-22-2012, 01:44 PM   #4
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The problem is that it's an RB20.
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Old 11-22-2012, 02:19 PM   #5
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Quote:
Originally Posted by omgRWDgoodness! View Post
The problem is that it's an RB20.
If your not gonna try to help the guy there is no reason for you to post in here. He is just asking for help.
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Old 11-22-2012, 02:20 PM   #6
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i had same problem, mine got worse. it ended up being the coilpack harness. got one from wiring specialties for like$60
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Old 11-24-2012, 03:16 PM   #7
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Yea is was the coil pack, it overheated, i guess that is a comon problem and im scared to buy another one for 80$ and it burn up again. What is the cause of that? so i can avoid that happening again.
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Old 11-24-2012, 03:32 PM   #8
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This is it. and if anyone has one i will buy.
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Old 11-24-2012, 03:56 PM   #9
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thats a coil pack. I would check with rawbrokerage to see if they have one. They are more than likely going to have it. They deal with RBs
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Old 11-24-2012, 04:57 PM   #10
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It's prob the harness swap it out they're like 50-60 new and save alotta headache . I burned thru 3 coil packs on diff cyl sets then I changed the harness n it's perf
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Old 11-25-2012, 07:58 PM   #11
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Ordered one, and I'm looking for harness don't want this sh** to happen again, thanks for the help much appreciated.
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Old 11-25-2012, 08:17 PM   #12
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RB20DET Coilpack Wiring Harness | Wiring Specialties
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Old 11-25-2012, 08:59 PM   #13
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you might also want to check the ignitor. the stock ones on rb20's are just. you could replace it with one from a turbo 300zx.
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