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Default JB4 ISO G5 MAP 3 LOG MAP 4 LIMP MODE - 03-19-2018, 03:08 PM

Hi, I recently installed mmp stock side inlets and a meth injection kit into my 535xi. After around 4k rpms the car goes into map 4 with two flashes. I since have also tried map 5 and same thing. No codes are coming up. Car is fbo and only mods changed are the inlets and meth. Meth is tuned in at 40/60 with a 50/50 mix.
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File Type: csv map5.csv (5.2 KB, 7 views)
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Default 03-19-2018, 04:38 PM

AFR is leaning out on tip in. Normally sign of fault code coming up. But could also just be a tuning issue.

Try a run on say map1 for comparison?
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Default 03-19-2018, 04:43 PM

just got a code. 2C9D Lambda probe heating in front of *** 2 input signal. o2 on bank 2 bad?
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Default 03-19-2018, 06:19 PM

Just did another log on map 1. Same thing but ended the log early. Is the car safe to drive if i drive normal mostly out of boost?
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Default 03-20-2018, 09:55 AM

Yes, that could indicate a bad O2 sensor and your bank 2 AFR's are lean.



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Default 03-20-2018, 10:13 AM

Awesome, o2 is ordered in. Thanks
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Default 03-21-2018, 04:22 PM




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Default 03-21-2018, 06:46 PM

new o2 in, here are some pulls. Can i get more then 14psi to hold?
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File Type: csv chopping 335.csv (8.9 KB, 11 views)
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Default 03-22-2018, 10:10 AM

You need to do proper 3rd or 4th gear logs for adaptions and review.

You can increase the meth additive for more boost but need to verify timing is good since your I avg is kind of high.



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