Guest |378| Posted July 24, 2009 Report Share Posted July 24, 2009 Just finished installing and wiring V44 to silvia with SR20DET. tested all outputs etc, had strong spark, good injector pulse etc. started and ran fine the other day, we were hoping to get on dyno this arvo. it started and ran started getting a bit rough, it was fouling the spark plugs. then it just stalled. as if we turned the key off. we replaced the fouled plugs but still no good, so we started checking things, has injector pulse still, but no spark at all, not even when we command the ecu to test. we spoke to greg very quickly he told us to check the trigger as we cranked... had no signal. so he told us to up the 5 volt to CAS to 8 volt. did this but still no good. ran out of time to test any more till monday. any idea what could have caused this? could running 5 volt to the CAS instead of 8 volts done any damage? also why arent we seeing results when commanding to trigger coils? remembering it was running fine after initial config. and start up. cheers Jez Quote Link to comment Share on other sites More sharing options...
rayhall Posted July 24, 2009 Report Share Posted July 24, 2009 The ignition test feature works without any signals from the CAS. If you have no spark using the ignition test, then there is some problem with the wiring, igniter or coils. If you did not have the correct dwell settings or ignition trigger edge while the engine was running, you could have damaged the coils, and that is why you have no spark. The CAS has 12 volts as the power supply with the stock ECU. I would recommend you do the same with the V44. Ray. Quote Link to comment Share on other sites More sharing options...
Guest |378| Posted July 24, 2009 Report Share Posted July 24, 2009 thanks for the quick reply. the V44 came with a map/settings already loaded for Sr20DET, but will definately check that. we checked the output signals from the v44 at the ignitor on ecu loom, LED was on with a slight flicker, do you know the correct dwell settings - also the correct ignition trigger edge - so we can check with what is currently set. cheers Quote Link to comment Share on other sites More sharing options...
rayhall Posted July 24, 2009 Report Share Posted July 24, 2009 Dwell time for the standard coils is 1.8 msec at 13.5 volts. If the software you are using has a dwell edge setting this must be set to rising, if the software has Ignition edge setting this must be falling. ECCS Widest slot = 16 Trigger 1 Edge = Falling Trigger 2 Edge = Falling Trigger 1 Pullup = On Trigger 2 Pullup = On Trigger offset = -100 Quote Link to comment Share on other sites More sharing options...
Guest |378| Posted July 24, 2009 Report Share Posted July 24, 2009 will check these settings on monday and also setup 12volts to CAS. will let you know how we go. thanks Jez Quote Link to comment Share on other sites More sharing options...
Guest |378| Posted July 28, 2009 Report Share Posted July 28, 2009 Update, car is running, the ignitor died, weird how it happened all of a sudden, also Steve is checking the cal. file. we havent let the car run, dont want to risk it till we hear back from Steve incase we fry another one Quote Link to comment Share on other sites More sharing options...
Guest |378| Posted August 5, 2009 Report Share Posted August 5, 2009 car is running now, but having issues with the boost controll. using a greddy solenoid and from 0-42 it runs normal wastegate pressure then if you take it to 43 it skyrockets through the roof. havent tried changing the frequency yet, currently at 300. Quote Link to comment Share on other sites More sharing options...
Guest Dave-Kriedeman Posted August 5, 2009 Report Share Posted August 5, 2009 300 Hz, thats very high. Start with 10 and go from there. Quote Link to comment Share on other sites More sharing options...
Guest |378| Posted August 5, 2009 Report Share Posted August 5, 2009 ok, will try that thanks. Quote Link to comment Share on other sites More sharing options...
Guest |378| Posted August 6, 2009 Report Share Posted August 6, 2009 got it all sorted, holding boost very well. ended up making 252.4kw on 20psi. did a comp test to see how things were, cylinder 2 was down to 80psi and the rest 160psi. did a wet test on cyl 2 with NO change took it for a road test went awesome, very smooth idling perfect, did a couple of 3rd gear runs and popped the motor. cylinder 2 lost all compression. gonna strip the motor and see what happend, Quote Link to comment Share on other sites More sharing options...
Guest Dave-Kriedeman Posted August 6, 2009 Report Share Posted August 6, 2009 What Hz did you end up using to control your solenoid correctly ? Thats a shame your motor popped :cry: Quote Link to comment Share on other sites More sharing options...
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