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I have access to wiring diagrams for any vehicle available in North American 1983-present. Sometimes I can cross it over to Rest Of World cars. If you need schematics for anything, feel free to email me. alandaeric at hotmail dot com ---- '''TODO: update all the pages to reflect uptodate status. Delete all old info, or move to a separat history page'''. * MembersPage/EricN/BoardSetup-step by step of putting my board together * MembersPage/EricN/WBSensor - Testing and config * MembersPage/EricN/Trigger - inputtrigger * MembersPage/EricN/Ignition - ignition advance, ignition output and coil related knowledge * MembersPage/EricN/FuelPage - Injector and fuel setup and config * MembersPage/EricN/Sensor - sensor info * MembersPage/EricN/Config - complete config and tables * MembersPage/EricN/LCD - Display related stuff * MembersPage/EricN/BuildNotes : scraps of info not organinzed ---- '''ITS DEAD''' Tried to start the truck the other day * MegaTune comm works * LCD works * no rpm signal or wheel error * no fuel pump activity (untill I hit the brake pedal, then it wouldnt shut off) nothing working as far as I could tell. * Put the ecu '''on my test bench, all sensors readings look fine in megatune''', I can upload firmware, everything looks ok untill I try and do an '''mdh''' command. * I noticed the fuel pump channel doesnt turn on. Tried some other channels, none of the P259 channels work at all * I went out to the truck to check the wiring, found '''1 wire ripped out of ecu, the EC36 pin 26 ground wire'''. Connected. *Disabled all the channels since mdh.. can only control free outputs.mdh can not manipulate channels that are enabled in config and therefore reserved => controlled by the ECM and tested with the '''mdh'''command. *All the I259 channels are good '''0v when off and 4.93v when on''' (using logic level trigger for coils with built in amplifier)when measured to gnd. *All s259 channels seem good '''OFF .54V ON 11.63v''' *All '''P259 show 0V all the time''' When measured to 12v * Tried to check the injecter fets but I have never been able to comprehend that table look up system, I only used 2 and have 8 in place so if 2 are dead, I dont care, I have the other 6 free ** Read GenBoard/Manual/DigitalOut, GenBoard/Manual/DigitalOut/Table (ask there if you don't understand sg.) With h[0]=01 02 04 08 10 20 40 80 you get a 1-1 mapping,so mdh80/mdh00 touches injA, mdh90/mdh10 touches injB, and so on *Tested wbo2, tested to ground '''mde 02''' slowly but eventually gave me '''4.93v on the FET pin closest to the ec36''' connector, the other 2 FET pins were 0v. In relation to power, they were 11.67v when all said and done at the 2 furthest away from the ec36 and 1 shuts off with '''mde00''', basically, that fet is ok and circuit working. * We use multiple gnd5 pins. (good!) * is it ok to use multiple gnd pins too or would that cause noise issues? ** multiple GND are good, it will NOT cause noise problems if the sensor GND (most importantly VR-) is connected near the EC26pin26 (not in the GND5 current path) '''New P259 chip on order''' (2 actually, 1 for next time) ---- MY PROJECT Ford 347 stroker- on hold,(taking to long to build car) Temporarily putting it in a 61 404 unimog, mercedes 2.2l straight 6. *Standard GM map sensor *Standard Honda ect sensor *Standard Honda air temp sensor *No iac, just ignition advance idle control *Bosch WB 02 *No knock sensor yet *No egt sensor *24-1 vr sensor mounted in old distributer *LS1 cnp coils
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