Some misfire on boost
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- 0.4 Bar Boost
- Posts: 498
- Joined: Wed Nov 22, 2006 6:36 am
- Car: S13
Step 1 is to check the plugs if they look decent close the gaps up you may need to go as small as .50mm in some cases. If closing the gaps up helps then start looking for some coils with horsepower so you can run bigger plug gaps again.
You will find that as you close the gaps up the idle will start to deteriote
You will find that as you close the gaps up the idle will start to deteriote
- mario_200sx
- 200SX Maniac
- Posts: 2507
- Joined: Fri Dec 14, 2007 9:16 am
- Car: S13
- Location: Cape Town
I would check the plugs first. I had the same issue with mine, it was over fueling and was fouling the plugs then you when you floored it it would break down. Closed the plug gaps and changed from BCPR7ES to BCPR6ES and it sorted it out untill I could fix the fuel map. When the fuel map is correct you can change back to BCPR7ES.
DriftZ: "I swear if a CA18 beats my SR im getting a RB!"
Correct but it is not easy to fix the fuel map why the plugs are constantly fouling. Thats why I say fix #6's then sort the fuel map out. When right you can change back to 7s.thats curing the symptom not the problem, why are they fouling? why not fix the fuel map?
DriftZ: "I swear if a CA18 beats my SR im getting a RB!"
- Vlade
- * - Club Pimp - *
- Posts: 2776
- Joined: Thu Oct 19, 2006 9:40 am
- Car: Other
- Real Name: Barend
- Location: Auckland, New Zealand
wow... been MIA for a few days... some action on my post, makes me wanna go work on the car right now... 
Plugs is the first thing I'll check tomorrow morning...
Ja this is one of this funny things, car runs like a dream for weeks then suddenly this...
Love the have a look at my AFR but don't have something to connect to the Wolf, dont have a Serial 2 USB nor a laptop... will maybe drive to someone that have one of those things tomorrow, might even be a sensor that F'd out and causing the car to overfuel... not unlikely...

Plugs is the first thing I'll check tomorrow morning...
Ja this is one of this funny things, car runs like a dream for weeks then suddenly this...
Love the have a look at my AFR but don't have something to connect to the Wolf, dont have a Serial 2 USB nor a laptop... will maybe drive to someone that have one of those things tomorrow, might even be a sensor that F'd out and causing the car to overfuel... not unlikely...
Hairdresser MX5