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JB4 keeps resetting to map 4
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05-13-2015, 08:06 AM | #1 |
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JB4 keeps resetting to map 4
For some reason since I've had the DPs installed the JB4 keeps resetting from map 2 to map 4. I think it's a safety feature but what might be causing it?
Last edited by Socket; 05-13-2015 at 08:14 AM.. |
05-13-2015, 08:07 AM | #2 |
Jedi samurai ninja turtle
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lel
again these posts |
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05-13-2015, 08:15 AM | #3 |
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Fossy a I sat up all night thinking up these Qs for you Inky lol
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05-13-2015, 08:20 AM | #4 |
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05-13-2015, 08:23 AM | #5 |
Buy a 335 they said... It'll be fun they said...
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What log?
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05-13-2015, 08:33 AM | #7 |
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05-13-2015, 08:48 AM | #9 |
Buy a 335 they said... It'll be fun they said...
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05-13-2015, 08:54 AM | #10 | |
Buy a 335 they said... It'll be fun they said...
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Checked the JB4 FAQ, this what goes down
Quote:
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05-13-2015, 08:59 AM | #11 |
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Lol
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05-13-2015, 09:02 AM | #12 |
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i lold scotty
but got this also from the same thread My SES light flashed and the JB4 switched to map 4 / low boost. What do I do now? The JB4 has several active safety systems that will trigger SES light flashes. The first is the over-boost safety. If boost exceeds the value you've set under user adjustment the SES light will flash once and the JB4 will switch itself to map 4 until you restart the car. The default setting is 18psi. Common causes for this are setting the value too low for the map/intended usage, improperly configured or defective wastegates, or JB4 setting problems. The second is the run-lean safety system. If your air/fuel ratio (either bank) runs leaner than 14:1 over 4500rpm for more than a second the SES light will flash twice and the JB4 will again switch itself to map 4 until you restart the car. Common causes are maxed out fuel trims (see E85 notes above) or o2 sensor faults. Note any o2 sensor fault must be corrected for the tuning to operate properly. Another commonly triggered fault is low fuel pressure. If your high fuel pressure drops below 7 (~800psi) the JB4 will flash the SES light three times and switch to map 4 until you restart the car. Common causes are an inadequate low pressure pump, too strong of an E85 mixture for your tuning/fuel pump, or a failing high pressure pump. |
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05-13-2015, 09:16 AM | #13 |
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Damb looks like i need to log 😕
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05-13-2015, 09:29 AM | #14 |
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Well first check the boost safety setting .
Then if you are not reaching boost target, look at fuel delivery of the HPFP and if those numbers are lower than 9 , then look t the LPFP. If the LPFP values are in the 50's or lower then your HPFP is being starved because of your LPFP. Moving on, if your numbers are good then I would move onto the DP install and see if the O2 sensors were swapped pre cat or post cat which would cause a lean then rich of opposing banks. The lean condition would kick you out of whatever map into map 4. Best of luck.
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05-14-2015, 03:37 AM | #15 |
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This thread is useless without....
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05-14-2015, 07:23 AM | #16 |
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05-14-2015, 08:05 AM | #18 |
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05-14-2015, 08:06 AM | #19 |
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O2 sensor
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05-14-2015, 08:07 AM | #20 |
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05-14-2015, 08:09 AM | #21 |
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i gotr mine from america (amazon), was like 100 aussie each for the sensors then install depends where you go a bit of a bitch to get to the DP's to change em out
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JB4 G5 ISO | BMS Backend Flash | Alpina B3 TCU Flash | AR Design Catless DP | BMS DCI | ER CP | Turbosmart Race Port BOV | Muffler Delete | H&R Sport Springs | BMS Cowl | BMW Performance Alcantara Wheel | M3 DCT Paddles | Muse Concept and Design Interior | 19" GTC-CX | M3 Lip Spoiler | Zieg CF Rear Diffuser | Flow Designs Front Lip | Black Grill | RGB LED Angel Eyes | 8000K HID |
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05-14-2015, 08:13 AM | #22 |
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Must have got damaged while the DPs were getting installed
I better find a place to get the car logged to rule out fuel trims etc before spending $$ on O2 sensors. Thanks Lemon |
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