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Visit Preferences to set your user name Summary of change: ''' Corrado g60 turbo ''' || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensen Start]|| [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensen%2FQuestions Questions ]|| [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJenseninjector Injector] || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensenignition Ignition] || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensentrigger Triger] || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensenDisplay Display] || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensenWbo Wbo2]|| [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensenconfig Config] || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensentable Table] || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensenwiring Wiring] ||[http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensenidle Idle]|| [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensenTools Tools] || ''' VW Passat ''' || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensenPassat Start]|| [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensenPassatThrottel Elektronic throttel]|| ''' Audi S2 ''' || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensenAudiS Start]|| [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensen/AudiSQuestions Questions ]|| [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensen/AudiSinjector Injector] || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensen/AudiSignition Ignition] || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensen/AudiStrigger Triger] || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensen/AudiSDisplay Display] || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensen/AudiSWbo Wbo2]|| [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensen/AudiSconfig Config] || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensen/AudiStable Table] || [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensen/AudiSwiring Wiring] ||[http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensen/AudiSidle Idle]|| [http://www.vems.hu/wiki/index.php?page=MembersPage%2FPeterJensenTools Tools] || ---- '''Trigger tester tests''' 4-9-2007 *We tested the trig2 (sj7 open) and it seams to work well using *a 100k-resister pull-up to 5V. *Shorted sj7 and pull-up r48 still ok *How can the trigger 2 work when the hall is pulling the ref *pulse down (see image 3) ? *what is the correct working sequence for Audi trigger? And what *will the signal to the processor look like if using crank home and *hall signal *Can Vems use the original trigger trimming (inverted home trig. *Of curse) or due I have to adjust the distributor to make it *work? ............................................................... * on EC36 pin 13 0-4V +- pulse * measured 0-4 V before R91 => good * +- 0,1V after R91 => NOT GOOD ** this is indeed a showstopper for sectrig HALL. ** maybe R91 is cracked ? measure Ohm ** most likely the trace is "shorted" to ground with low resistance. Look for places ** It seems you replaced C33 yourself, check if shorted there. ** Also see D27 (maybe shorted or reversed ?) ** and SJ7 at the bottom, almost under the FETs can be opened to see if the sectrig LM1815 pulls the signal to ground for some reason ***Leaving the sj7 open then i have 0-4 V to the processor. Removed the lm 1815 and still ok signal So the sec. trigger maybe in bad condition?? ** if you purchased bare board, and assembled yourself, this part was not tested with the mintest. So it is even possible there is a short somewhere on the PCB traces ** if you have problems to find the short, while the board is powered, you can use a 0.5 .. +5V strong supply (100mA or higher) to inject current into the short, and measure with DVM mV mode to locate the short. Don't use +12V (or anything higher than 5V), that would kill components. Be careful. If you have max +0.7V supply, or limit with a resistor and diode, you can do the measurements with the board unpowered. Image1. http://www.vems.hu/files/MembersPage/PeterJensen/trigger_test.jpg Image2. Measurements with exchange crank home trigger http://www.vems.hu/files/MembersPage/PeterJensen/s2/trigger_135_ref.JPG Image 3. Measurements with exchange crank home trigger http://www.vems.hu/files/MembersPage/PeterJensen/s2/trigger_135_ref_1.jpg ---- Added a 20K resistor (12..15k is better, sometimes 20k is too high) http://www.vems.hu/files/MembersPage/PeterJensen/audi_trigger/trigger_1.jpg Soldered JP7 http://www.vems.hu/files/MembersPage/PeterJensen/audi_trigger/trigger_2.jpg Mounting the stepper chip http://www.vems.hu/files/MembersPage/PeterJensen/audi_trigger/trigger_3.jpg C103 replace with 1nF (only needed on certain boards from a given old batch, 2005 or so) http://www.vems.hu/files/MembersPage/PeterJensen/audi_trigger/trigger_4.jpg added 1uF cap in parallel with C40 http://www.vems.hu/files/MembersPage/PeterJensen/audi_trigger/trigger_5.jpg R182 shorted http://www.vems.hu/files/MembersPage/PeterJensen/audi_trigger/trigger_6.jpg Made wire for the crankhome-VR trigger input (EC18 pin 12) http://www.vems.hu/files/MembersPage/PeterJensen/audi_trigger/trigger_7.jpg Connected JP 2 and JP 7 so the primary trigger goes where it needs to: http://www.vems.hu/files/MembersPage/PeterJensen/audi_trigger/trigger_8.jpg Optional: Add document to category: Wiki formatting: * is Bullet list ** Bullet list subentry ... 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