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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: Hopefully I got a bench setup both for the Weber OEM injection IAW ECU and for the Vems. ---- '''1st tests fw 1.2.12' GOOD NEWS On the next figure, the strobes regarding one cylinder are counting from the last: - Ignition, - Vems Injection, - IAW Injection http://www.vems.hu/files/maserati/injVems-IAW.jpg. The settings for the injector are the one computed by VT from the engine specs and as we see not too far from IAW '''Injection outputs''' * '''1.2.13''' ('''2013 May 2nd''' or newer: and needless to say, use newest VemsTune ) ** for odd-fire maserati, injection is 30 crankdeg delayed every 2nd injevent (1,3,5) ** '''We BENCHTESTed''' 1.2.13 (https://cell.dyndns.ws/f/ May 13). ** '''inj is also oddfire 90,150,90,150,90,150''' see logicdata in http://www.vems.hu/files/maserati/ *** (fphil)what was the injector delay set for this run? *** the config (extracted from vemslog) you sent via email * Adjust the injector delay (in function of RPM) if necessary, to get '''desired''' positions. Let us know if you find it's preferred to delay inj 0,2,4 instead (so that adjusted injangle is real as adjusted without cheating) * Older fw (was evenly-spaced injection events): tested the Vems injection outputs using the sequential injection settings of the config file (fw v1.2.13 from 2013 April) http://www.vems.hu/files/MembersPage/Maserati/ImmediateStart/v3.3_u004521-A-2012.09.26-09.36.15.vemscfg given by the OddFireSixCyl page. Here below are the 6 Vems output together with the trigs http://www.vems.hu/files/maserati/injVemsBad.jpg Evenly-spaced. Remember this odd fire engine has an ignition pattern as 90, 150, 90, 150 , ... and one can expect to have this pattern duplicated for the injection one. ---- '''(June 2013) 2nd bench testing with fw 1.2.14''' As wikied above, the vems support did a May 2nd version of fw 1.2.13 which as been tested good for odd firing at the VEms facilities. On my side I bench tested good fw 1.2.14. Hereafter the results. Settings: Injection timing = 1ms, fuel cut = 7200 TEST I Settings: 1000 rpm EndInjectionPhase = 370°=360° + 10° (crang trig is 10° before DTC) http://www.vems.hu/files/maserati/injtst1.jpg -> the yellow cursor marks cyl 2 which is firing, next firing is done by cyl 5 on next trig 90° afterwhile. The white cursor marks where the injection pulse should have occurs with EndInjectionPhase = 370° -> injection is odd-pulsing alright .Test II Settings: 1000 rpm EndInjectionPhase = 250° = 370°-120°, http://www.vems.hu/files/maserati/injtst2.jpg -> The white cursor marks where the injection pulseat 370° before cyl 2 TDC '''-> PLEASE DELAY THE OTHER GROUP OF 3 INJECTORS (say nj 0,2,4 ) INSTEAD''' * the "other group of 3 injectors are delayed" in [http://vems.hu/download/v3/firmware/experimental/ 1.2.14] from June .Test III Settings: 3000 rpm, 6000 rpm, 7000 rpm fuel cut = 7200 ... Good similar TestII .Test IV Settings: 7250 rpm ... good, no injection = fuel cut done. . Test V Settings: 7000rpm injection time = 100ms, http://www.vems.hu/files/maserati/injtst7.jpg time read on scope = 98,165ms = good. '''Thanks for the work done to update the firmware''' Nest step to cable and test on the car ... (I am really slow !!) 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.