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M117 5.6L even-fire V8 engine, Mercedes 560SEL model 1990 and 1991 (2 engines, 2 harnesses, same specs, theoretically) Trying to assemble the puzzle... As I understand (orig info "quoted") * Ordered 2 kits from [http://elbe.ee/products/efi-kit/ Hendrik] ** "The only problem we had when we install the kit is idling." * '''originally both were running''' (with 1 or 4 ignoutputs ? 4 ignoutputs correct ?) * ignition was changed from EC36/pin36 to EC36/pin11 while the engine was running => ECU damaged * The other engine was also running, but idle was not tuned ** tuning the idle can be done locally, not by sending the ECU to another continent. ---- '''Wiring''' * [http://www.vems.hu/files/MembersPage/Mercedes/Mercedes_SEL_M117_5.6L/elbe_efi_kit_wiring.pdf original harness.pdf] (the only thematical information received, might not be uptodate, see ignition and IAC. Anyway '''keep the pdf open while viewing this page''' ) ** beware that IGN1 .. IGN8 numbering in this pdf is non-standard (subtract 1. The EC36/.. pin should be authoritive) Uploaded [http://www.vems.hu/files/MembersPage/Mercedes/Mercedes_SEL_M117_5.6L/M117_EFI_kit/ EFI kit photos] * note: ''intake air pressuer.jpg'' seems like a CLT (coolant temperature sensor) ** does it go to EC36/pin14 ? (apparently that is also yellow, but please verify). Is CLT correct in logs ? ** measure resistance at know temperature ** is the sensor in the cylinder head, measuring head / coolant temp ? ( or in the intake manifold, measuring MAP ? unlikely) ** what made you think that it is "intake air" related ** or that it measures pressure ? ** who named the files, and who will fine-tune the engine ? ---- '''Ignition''' Firing order : ... ? THE FIRING ORDER IS 1-5-4-8-6-3-7-2 Note: All ignition wires lack fuses (there is only 1 10A fuse in the whole harness, zzz... Not good, must be added). * "We did all the installation as Instructed but unfortunately while the engine was running the main 12v wire was shorted and the ecu burn" * "We '''changed one of the ignitions outputs from 35 to 11''' as Elbe instructed and run again but there was a smoke and one of chips was smoking and fire" * "The other ecu it was a mistake changing the ignition while engine running" ** you mean "changing ignition output in config" while engine running ? Or changing the wiring somehow ? (usually difficult with EC36 plugged in, but who knows :-) ** was it reconfigured in the "ignition outputs" dialog that starts with red "Must not be changed with running engine" ? ** You made a video of the IGBT smoking (apparently the full event, from the beginning)... What is the history of that ? It almost seems like you were prepared for the smoke. Just curious Originally as in the pdf, later Changed to ... (information from Waleed, no EC36/pin.. reference) Red is +12V. * EC36/35 (ignch0) Yellow (cylinders 1 and 6) ** changed from EC36/pin35 to EC36/pin11 (ignch4) while engine running ? * EC36/33 (ignch1) Green (cylinders 5 and 3) * EC36/34 (ignch2) White (cylinders 4 and 7) * EC36/36 (ignch3) Blue (cylinders 8 and 2) ** '''EC36/36 trace burnt inside the ECU'''. Isn't it possible that EC36/36 was changed in config while engine was runing ? ** note to installers: using ignch0 and ignch1 will work with a VEMS ECU with 6 or 8 IGBTs, it is smarter to allocate ignch 2,3,6,7 so it could also work with just 4 IGBTs (GenBoard/Manual/IgnitionOutput). Opel P/N - [http://www.aliexpress.com/item/Free-Shipping-High-Quality-For-Opel-For-Vauxhall-Ignition-Coil-Oem-1208065-0221503001-90443900-90449572-Dmb410/2000076237.html 1208065] * these are '''2x2 passive wasted spark ignition transformers''' (with 3-pin AMP connectors, suitable for inductive ignition, and quite rugged for the 25..45USD price, reliable, also easy to replace) ** so obviously 2 modules are used ** fuses should be used, 3A or 4A for each ignition output (4 ignfuses total). Change to 5A after engine is tuned, and all is well. ** dwell probably 3msec ---- '''IAC''' Can you detail your Idle air control setup ? Is it PWM type? * Measure resistance, * take note of partnumbers. * Did it react to openloop changed during initial testing ? THERE WAS NO IAC VALVE WITH THE KIT. THE RECOMMENDED ONE WAS TAKEN FROM BMW540. Why are there so many IAC pins in the kit wiring pdf ? * EC36/pin12 (ignch5) Brown for "M117 kit" * EC36/pin24 (ignch6) (M117/M103 kit, but no color in the pdf). What does this mean ? ** What are the actual IAC pin from the ECU ? ** (of course the IAC also has a +12V side, hopefully through a 4..5A fuse) ---- '''Config''' * [http://www.vems.hu/files/MembersPage/Mercedes/Mercedes_SEL_M117_5.6L/MercedesSEL_M117_5.6L_Saudi_ignitionMessed.vemscfg original vemscfg] (ignition should be compared to above) ** do you happen to have running vemslog ? (when tuning idle, it makes sense to capture vemslog for later analysis) * any validation errors ? ** suspicious things ? ** recommendations ? '''config review by Dave:''' * m117 is v8, config is 8cyl but using 4 reftooth sites, 24-1. must be 24-1 on crank (camsync not configured) and using 2 ignition transformers (or 1 waster spark coil) per ign output. * if so, they might be overloading the igbts (the document: elbe_efi_kit_wiring.pdf) seems to suggest wasted spark coils are used (M117), in that case the 2.8msec dwell should be okayish (not to high) * some other small config stuff: ** simultaneous injection when cranking not recommended on 8cyl ** wheelspeed 1/2 when not using (not connected) set to both to 0 ** idle control tps enable is set to 0% adjust to more reasonable 1-2% for proper activation/deactivation ** iac pwm frequency is not properly filled ** accel enrichment enrichments are quite high but might be good for such a big engine * other than that config looks quite reasonable ---- '''Trigger''' Primary trigger: EC36/pin27 VR * 24-1 Secondary trigger: (disabled) * 1 pulse per 720 crankdeg, right ? Any triggerlog captured available for verification ? THE TRIGGER IS VR 36-1 FLY WHEEL WITH FORD CRANCK SENSOR. THERE IS NO SECONDARY TRIGGER. ---- Unrelated: * see FileArea to upload image, vemslog or zip files
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