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07-20-2018, 06:24 PM | #1 |
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BEF Issues after Spark Plug change
Recently got DME unlocked and flashed the PUMP BEF. Been working great for a few weeks. New NGK's gapped to .022 yesterday and today first WOT test. Car sputtering after a couple seconds of WOT. HPFP? e30 mix. Mix has always been fine.
Anything I should adjust through the app? 2 logs https://datazap.me/u/inevitab1e/new-...log=0&data=1-4 Log 5 days ago https://datazap.me/u/inevitab1e/mhd-...log=0&data=1-4 Last edited by inevitab1e; 07-20-2018 at 06:33 PM.. |
07-20-2018, 06:36 PM | #2 |
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No comments, but there has been lots of complaining from people running anything but the exact OE plugs, which your NGKs are not. Are you running a different heat range from stock?
The bigger question is why use a JB4 in 2018, when we have full access to the ECU? Are you using it to run meth, nitrous, or quick change boost control? If not you're just adding another point of failure to do something a remap will do better. |
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07-20-2018, 06:44 PM | #4 | |
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That would mess with the HPFP? I could check the coils again. Only thing I can see in the logs is the HPFP diving as the RPM's go higher. Also IGN6 is lagging, that's probably the coil. |
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07-20-2018, 07:21 PM | #5 |
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07-20-2018, 08:45 PM | #6 | |
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It wouldn't. You're trying to diagnose a problem without verifying no mechanical errors. You are skipping to step 9 before doing step 1, recheck recent work. Which in your case, far as you've told us, is sparkplugs. So something at the sparkplug is where step 1 is. Whether that is a coil not seated or a wrong/damaged/bad out of the box plug is up to you to check, we physically can't. And a log isn't going to tell us either. Unless there's more you're not telling us ... |
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07-21-2018, 09:30 AM | #7 |
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Safety reasons and I just don't want to pull out the JB4 because I spent money on it? You'd recommend removing JB4 entirely? What benefit would I see doing that compared to the BEF w/ JB4 controlling boost?
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07-22-2018, 03:06 PM | #8 |
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Alright, yanked out the JB4 and flashed the S2+ 93. I do have a e30 mix, this tune doesn't feel as strong as the BEF. Since I'm using E85, should I go to the S2+ 95 octane or the E85 mix map?
Can you use a e30 mix with any of the S2+ flashes? https://datazap.me/u/inevitab1e/mhd-...27-28-29-30-31 |
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07-23-2018, 12:48 PM | #9 | |
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I would say the log looks very clean. You can run E30 mix on any stock turbo file including stock programming. The car's fueling adaptation will take care of the mixture. That's the same functionality in the E30 special tune, it just relies on the normal fueling adaptation function to get the mixture right. Thank your wideband o2.
I see that you removed the JB4 but this is my reasoning for why you don't want it (and you can always sell it quickly on classifieds here, of course): Quote:
At this point JB4 is ONLY useful for running meth, nitrous, or doing quick boost limit changes since those are functionalities not provided by a remapped ECU. And for the last one, you can just take 3 minutes to write a new flash, so it's not much of an advantage. How often do you change boost levels anyway? Probably only when changing fuels or running an event, so a 3 minute reflash isn't a big deal. |
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07-23-2018, 09:22 PM | #10 | |
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07-23-2018, 09:53 PM | #11 | |
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07-23-2018, 11:09 PM | #12 | |
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What else do you want to know? You do realize a BEF is essentially the same thing as a normal flash minus the boost? |
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07-24-2018, 01:58 PM | #13 | |
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As far as targeting boost, a tune can target literally whatever you want...The only limit is what the MAP sensor can read and what your turbo can flow. Have you even opened a bin in tunerpro and seen how it works? You could even tune the car yourself...it's not that hard. The JB4 has absolutely ZERO advantage here, except quick change of boost limits...which again you can do with a 3 minute reflash in the rare event that you need to change that. Finally, you may find it interesting that every stage 2 flash tune out there disables the CEL for a catless downpipe. Not to mention they actually let you get the car inspected (in most states) and hook whatever you want up to the OBD port, because the JB4 hasn't hijacked the whole canbus. Now that these misconceptions have been corrected, what say you? |
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07-24-2018, 02:21 PM | #14 | |
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Having the JB4 does add additional convenience. |
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07-24-2018, 03:11 PM | #15 | |
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You need to clear codes from the wheel...that's funny. If your car is giving you codes that often there's something quite wrong. Anyway, you can clear codes in a few seconds with MHD, wirelessly if you want. Wireless monitoring? You're aware that MHD can do that, right? And probably others too, what with bluetooth OBD adaptors. I think it's pretty clear what's going on here. One of my favorite quotes should do nicely: "It's easier to fool a man than convince him he's being fooled". Eagerly await your response. |
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07-24-2018, 08:48 PM | #16 | ||||
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