335i (N54) ja JB4 part II

[Tommix]

Last safety: 0 eikä vikakoodejakaan.

Mikä soppa tankissa, pelkkä bensa? Otitko logia, se sen syyn paljastaa. Saatan muistella omiani, mutta eikös map5 vaadi jo vähän viinaa joukkoon? Ja tämä taas tehokkaamman lpfp:n jne...
Edittiä:
Ja onko jb4:ssa vikakoodien poisto päällä, tällöin ei koodit jää muistiin.

[vam0s]

Last safety: 0 eikä vikakoodejakaan.

[vam0s]

Minkälainen kokoonpano autossa on ?

Downpipet, injetin kartiosuodattimet ja imukaulat sekä tietysti jb4.

[miyli]

Map5 pystyy vetämään muutaman vedon jonka jälkeen moottorinvikavalo syttyy ja auto ns. "rötää" ja lähtee pois heti jos pysähtyy tai ajaa hetken rauhakseen. Pudottaa myös samalla map4'seen. Map2 ei ole samaa ongelmaa, mistä tämä mahtaa johtua? Myöskään mitään vikakoodeja ei ole.

Sieltä JB4 näkee syyn tälle map4 heittämiselle. eli user Adjustment ja sieltä last safety.

[F-Lame]

Map5 pystyy vetämään muutaman vedon jonka jälkeen moottorinvikavalo syttyy ja auto ns. "rötää" ja lähtee pois heti jos pysähtyy tai ajaa hetken rauhakseen. Pudottaa myös samalla map4'seen. Map2 ei ole samaa ongelmaa, mistä tämä mahtaa johtua? Myöskään mitään vikakoodeja ei ole.

Minkälainen kokoonpano autossa on ?

[vam0s]

Map5 pystyy vetämään muutaman vedon jonka jälkeen moottorinvikavalo syttyy ja auto ns. "rötää" ja lähtee pois heti jos pysähtyy tai ajaa hetken rauhakseen. Pudottaa myös samalla map4'seen. Map2 ei ole samaa ongelmaa, mistä tämä mahtaa johtua? Myöskään mitään vikakoodeja ei ole.

[hardyy]

Ilmanputsari koteloineen irti. Sitten näkyy inletti putki jonka taka/alapuolella tunnistin on. Helpointa varmaan ottaa inletti irti ja tarkastaa missä kunnossa liitos kohta on.

Täytyy katsoo samalla kun laitan burgerin suodattimet kiinni..

Eilen kiihdytin 2 vaihteen täyskaasulla jonka jälkeen heitti myös tämmösen: 2A87 Outlet-Vanos variable cam control test, mechanics?

[F-Lame]

Onko liittimeen helppo päästä käsiksi?

Ilmanputsari koteloineen irti. Sitten näkyy inletti putki jonka taka/alapuolella tunnistin on. Helpointa varmaan ottaa inletti irti ja tarkastaa missä kunnossa liitos kohta on.

[hardyy]

Itse kurkkaisin tuon liittimen seuraavaksi. Puhdistaa liittimen ja tunnistimen pinnit ja jos ei futaa sillä niin uusi tunnistin sinne. Jos vaikutat etälä suomen suunnalla niin voin jeesata tuon kanssa.

Onko liittimeen helppo päästä käsiksi?

[F-Lame]

Kuittasin mutta heitti uudelleen samat koodit..?

Itse kurkkaisin tuon liittimen seuraavaksi. Puhdistaa liittimen ja tunnistimen pinnit ja jos ei futaa sillä niin uusi tunnistin sinne. Jos vaikutat etälä suomen suunnalla niin voin jeesata tuon kanssa.

[hardyy]

Viittaa kovasti intake putken paineanturiin. Oletko koittanut kuitata vikakoodeja ? Amerikan pojilla on ollut jotain ongelmia tuon anturin liitoksessa, likaa yms :think

Kuittasin mutta heitti uudelleen samat koodit..?

[larippa]

Mä en ymmärrä mikä virka on JB4:lla, kun MHD tekee samat asiat ja enemmänkin + paremmin? Onko se välttämätön metanolin ohjaukseen? Porukka kirjoittelee, että laittoivat JB4 lisäksi MHD:n ja toimii paljon "smoothimin" jne...valistakaa.

Paras combo on JB4 taustalla ja siihen back end flashi jota voi tarvittaessa muokata.


"What are the benefits of running a JB4 with a flash rather than flash only for tuning?

While it's possible to tune an N54 without a JB4 doing so comes with many disadvantages.

1) The JB4 includes more robust safety systems than are possible via flash only. Starting with fundamental safety systems like reverting to a safety map if boost exceeds your safety setting, if the air/fuel ratio in either bank turns dangerously lean, or if fuel pressure drops below a safe level. While you might think the DME alone can handle these basic safety systems surprisingly it's not the case. The DME will happily let you run along at full power and a 18:1 AFR, with boost pegged if a WG line drops off, and the only fuel pressure safety provided is when fuel pressure drops down so low fuel injection itself has to be suspended. In addition to these basic safety systems the JB4 offers layered advanced safety systems. For example it monitors fuel trims bank to bank and reverts to safety if they exceed more than a 15% variance indicating a possible fuel distribution or o2 sensor issue. Port injection and WMI add extra failure points and the JB4 control provides advanced safety systems for them as well. The port injection FAQ covers the basics.

2) The JB4 boost control system is programmed as absolute meaning you'll always target a specific boost level. Unlike the DME which naturally implements a LOAD control system where boost levels go down when it's cold and go up when its warm. The opposite of what you generally want for turbocharged performance. In addition the JB4 is quick and easily adaptable to a wide range of setups eliminating the need for expensive custom boost tuning and the risks that come with repeated logs on systems that are not yet setup. It's not uncommon for engine damage to occur while a new setup is initially being dialed in. The JB4 automatically tunes wastegate dutycycle, fuel trims, and other important tuning criteria full time in the background greatly simplifying the tuning process. In addition the JB4 auto-tuning map can self tune for various ethanol mixtures without the need of an expensive and difficult to install flex fuel sensor. Pedal to boost mapping, spool aggression, boost by gear, and other critical factors can be easily adjusted in dash on the fly to suit the needs for the particular track or racing situation.

3) On the fly changes. Whether it's changing the boost/power level, boost by gear setting (including being able to disable it on the fly for burn outs or if traction turns out to be better than expected), pedal input, or what gauges are shown in dash, the JB4 allows a wide range of user adjustment real time from the drivers seat without having to use a 3rd party device or risk programming the DME between runs.

4) The JB4 allows for much better real time feedback to the driver. User adjustable in dash gauges allow you to keep a constant eye on boost, timing, knock, meth flow, and/or AFR, all selectable and changeable on the fly from the drivers seat. A user adjustable shift light can be triggered making rowing through the gears easier. JB4 Mobile allows wireless bluetooth logging via your Android or Apple phone without a cable locked in your OBDII port. In addition you can select map0 on the fly to allow OBDII port logging and diagnostics when needed for vehicle service. The JB4 default logging set includes all relevant data required for tuning including boost, timing cylinders 1-6, AFR and fuel trims in both banks, high and low fuel pressure, load, calculated torque, trans temperature, and many other parameters. The JB4 provides a simple to use but incredibly robust data logging system eliminating the need to select what parameters to record before each run and providing instant on the fly charting without the need of 3rd party internet programs. We routinely add parameters to the JB4 logging set based on customer feedback and evolving tuning requirements. The JB4 samples boost and analog sensors 250 times per second and CANbus specific data like air, fuel ratio, fuel trims, and timing advance 10 times per second.

5) Integrated JB4 features such as port injection control, flex fuel sensor, and progressive water/meth (WMI) control eliminate the need for independent add on boxes that are more difficult to install and technically unable to communicate with each other. Integration allows these extra features to share information for a smooth and cohesive tuning solution. For example with the JB4 NLS and JB4 port injection control when you press the clutch in for NLS your port injection flow is momentarily suspended to avoid huge backfires that have been known to blow out o2 sensors and in extreme cases blow up intake manifolds. When the DME requests a torque drop due to traction or stability control the JB4, WMI, and PI systems all respond accordingly. JB4 anti-lag has a dedicated user adjustable boost limiter to avoid unnecessary engine stress while engaged. WMI integration is able to hold boost levels low UNTIL fluid is flowing adequately to prevent spool up and transitional knock, adjust your boost target if the fluid being injected turns out not to be as potent as was expected or required to prevent knock, and in the event of a fail-safe depending on the severity of the situation either lower your boost target partially OR instantly dump boost out the diverters/close the throttle/cut timing. These are just some of the many examples of why having add on boxes an features all integrated through a single system is advantageous.

6) The JB4 is widely used and widely supported including free unlocked back end flash maps and custom mapping support from BMS via the n54tech support forum. BMS sponsors and attends several 1/4 mile and 1/2 mile races per year continuously improving the JB4 base maps and features based on real world experience and feedback. These updates are provided free of charge to JB4 customers via n54tech firmware posts.

7) The JB4 hardware is robust, reliable, highly developed, and upgradable, with many thousands of systems in use since 2008 when it was first released. The key to the JB4’s success is that it DOES NOT replace the factory engine computer or DME. The JB4 simply adds on to functionality already provided by the DME. As a result the DME remains in full control of your engine at all times with the JB4 dynamically making small but impactful adjustments to add in extra safety systems and features and dramatically improve performance."

[hardyy]

En vielä kuitannut.. täytyy kokeilla sitä nyt ensi hätään!

[F-Lame]

2ABC Charging pressure sensor, electrical
3100 low boost mode engaged -- CEL displayed
2D2B Pressure sensore of the intake pipe, re-running

Apuja kaivataa?! :think

Viittaa kovasti intake putken paineanturiin. Oletko koittanut kuitata vikakoodeja ? Amerikan pojilla on ollut jotain ongelmia tuon anturin liitoksessa, likaa yms :think

[hardyy]

2ABC Charging pressure sensor, electrical
3100 low boost mode engaged -- CEL displayed
2D2B Pressure sensore of the intake pipe, re-running

Apuja kaivataa?! :think