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Summary of change:
EVAP Subpage of MembersPage/VasilisP AAN ECU serialnr '''v3/10581''' note (as noted before) : [https://shop.vems.hu/catalog/refer_to_thematical_page.php tech support requirements] (are very clear: there is '''no tech support in email at all''' - for a good reason: because it is a waste of time and causes a lot of errors and misunderstandings to merge a series of messages, and those who are not willing to summarize thematically are more likely to mess up their installs either with support or by themselves ) '''EVAP valve''' Investigating * if some connection needed (from EC10 or SSC6) ** can you check your EC10 pinout on paper (fill in EC10 section below !) * or if some output is already connected inside ECU to mot55/pin5 Can you '''please measure''' * (ignition off) what is the resistance of the EVAP valve ? * can you measure +12V on one pin of EVAL valve (ignition ON) ? ** please do measure and take note as a verification, (not just write something as "standard") * can you measure connectivity from mot55/pin5 to EVAP valve ? ** [http://www.s2forum.com/forum/showthread.php?t=24073&page=2 drawing] shows mot55/pin3 connected to EVAP, but that must be an error (mot55/3 = fuelpump relay and mot55/5=EVAP, right ?) ---- '''When I test the i259/7 output, the EVAP valve does not operate''' OK, so diagnostic can be started (easy, DVM needed). * VT, output channel setup, '''Misc 2 has: ignition output 7 (7A)Grounding EC36, pin10''' ** (no conflict, eg. not configured on other output) ** as a test: toggle inverted / not inverted checkbox ** can you measure voltage between the EVAP valve pin (whichever is connected to MOT55/pin5) and +12V ? (or +5V can also be used as measurement reference) Please '''measure Alubos extrusion length. 100 or 111 mm''' ? (longer is used for dedicated AAN mainboard, shorter is econoseal mainboard + internal wiring) * Does the '''ECU have 3 clamping plates''' ? (6 small M3x10 flathead screws at the bottom ?) ** '''i259/7 ign IGBT output has been connected to AAN-mot55/pin5 since ages''' (although not used in most installs, true). ** The 3rd clamping plate is only used for that lonely IGBT (an alubos with 4 drill and 2 clamping plates would be enough if that IGBT is not populated) ---- '''EC10''' Check your EC10 pinout on paper and compare to [http://vems.hu/download/v3/Motronic55/Audi/aan_typical_EC10_pinout.pdf typical EC10 pinout] ? * when misc2=i259/2 and '''toggling inverted / not inverted''' ** please '''measure voltage between EC10/pin8 and +5V''' ** or +4V (WBO2 pump- eg. LSU4.2/pin5 or LSU4.9/pin2) can also be used as measurement reference * same test for i259/3 and EC10/pin9 If the EC10 pin is pulled to GND when i259/.. activated, that can be used for EVAP activation easily * connect to the wire that is verified to be connected to EVAP * a diode (BY399 or min 1n4007) across EVAP valve is nice (cathode to +12V) ---- '''Config''' 1) I have in the aux outputs on my config settings to operate the '''n80 audi valve for recirculating the fuel vapors''' from the engine. * please publish config sometime ** does it pass "validate", or shows some errors ? If yes, can we see and investigate errors, one by one ? ---- '''PROBLEM WITH EVAP VALVE SOLVED AND DOES NOT REQUIRE YOUR INPUT''' Please elaborate. * guessing: v3/10581 had EVAP valve output connected since day 0 (i259/7 IGBT?) just the EVAP valve did not get +12V supply ? ** can you please write (to help other's) how you found it ?
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