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IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now. Visit Preferences to set your user name Summary of change: Volvo S70 T5 Turbo Motronic 4.4 Ecu 19T 21psi cca 340Le Engine: B5244T LPT 9:0:1 2445 ccm 5 cyl Na camst Rs500 intercooler S60R Fuel injectors 42lb Walbro 255 Lph pump TD04HL-19T Turbo 3" exhaust Msd ignition(distributor) ----------------------------------------------------------------- New Project: 1998 Volvo S70 B5244T + vems V3 Engine: B5244T LPT 9:0:1 2445 ccm 5 cyl Na camst Rs500 intercooler Siemens Deka 630 Walbro 255 Lph pump TD05HL-06 20G hibrid 3" exhaust Volvo T5 COP's Bosch 0221604001 ----------------------------------------------------------------- Inline 5-cylinder, sequential ignition with camsync Primary trigger: 60-2 w/ VR sensor. Secondary trigger: Single tooth w/ Hall sensor. The rising edge of the cam wheel hits the sensor after cylinder three fires and before cylinder one does. Firing order is 1-2-4-5-3. Ign. outputs will connect as follows (for 2+6 igbt configuration, + PNP transistor Ignition outputs * cyl 1, EC36/34 * cyl 2, EC36/35 * cyl 4, EC36/33 * cyl 5, EC36/36 * cyl 3, EC36/24 ----------------------------------------------------------------- Sensor: TPS is standard Volvo S70 , 3 pin. -Standart Vr sensor 2 pin -Hall sensor 3 pin -Bmw Mat sensor -2 Bosch Lamda -IAC 3-pin ----------------------------------------------------------------- Coil pin-out:S70 T5 Cop Pin---Designation 1 Trigger 2 Not Used 3 Ground 4 +12v ----------------------------------------------------------------- '''ign TDC-delay (primary trigger settings) is too low !''' * ign-tdcdelay = 20 is wrong.... Correction hint: 144+20=164 crankdeg = 15*6 + 74 * first trigger tooth should be 15 * "TDC after the trigger": ign tdcdelay = 74 crankdeg * of course, rotate ignoutputs by 1 to match the desired spark position ** verify by strobe ---- '''Validation shows possible problem''' * sectrig HALL-dirac filter: preferrably disable it ! * iac ignadv change should be lower (+2, -6 crankdeg or similar; even +1 -3 or crankdeg is more than enough is IAC air-valve is set up properly, +0 -0 should be good too) With hall dirac filter the problem shows less times ---- '''Benchtest''' We applied some changes to the config, because "TDC after trigger" = 20 crankdeg is not a good setting (see above ... Since we changed 144 crankdegrees, you might need to rotate the ignoutput sequence by 1 event, strobing will show it). After that, we benchtested the config. We '''benchtested the ~160 kPa and 3000 .. 7000 RPM range most extensively where your cylinder seems to misfire'''. The ignition and injection outputs fired properly. Test config: http://www.vems.hu/files/VolvoS/tested-v3.3_u004521-A-2013.05.06-12. ----------------------------------------------------------------- http://data.hu/get/6564404/v3.3_u003132-2013.05.21-00.44.37.vemslog http://data.hu/get/6564478/v3.3_u003132-A-2013.05.21-00.46.20korrekciofentgyujtas.vemscfg Hi Marcell, could you please take a look on my log file? On WOT runs from 1st to 4th everything is fine, but in 5th gear @ 3000 rpm the engine misfires => lambda goes lean (this is a consequence of misfire: unburnt oxygen in the exhaust), stutters. * Ignition is not strong enough. Ign current (peak current, or average current, RPM and dwell) should be measured. ** maybe longer dwell (possibly in function of MAP, see dwell_map in ignition settings) can fix it (or burn the ignition coil). ** check individual-power (if it's just 1 cyl or multiple cylinders) The other problem is the startup. Doesn't matter if the engine is hot or cold I have to crank the for a long time to start. What could be the problem? * it can be ... almost anything. If trigger is good (RPM shows up properly), than ... Either air, but more likely fuel or spark. * Needs experimenting and tuning (if you find values that result in improvement, save the log or config and take note of fuel pw). Sziasztok Kis segítségre lenne szükségem. Hiba : kis alapjárat ingadozás 100rpm egyenletlen járás.. Lambda 1.00 ha dúsítom kb 0,85re egyenletes alapjárat minden tökéletes.a hiba vems bekötése óta tapasztalható. Üzemanyag problémára gondolok .injektorok tesztelve egyenletes porlasztás, mennyiség megegyező mind az 5 hengerre . Van e valami tippetek mi okozhatja a problémát? Köszönöm Log: http://data.hu/get/6879388/v3.3_u003132-2013.08.25-18.04.52.vemslog Optional: Add document to category: Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.