Richard Hainsworth Posted September 6, 2015 Report Share Posted September 6, 2015 Hi teamWent for the big start today, i am using the v3/4 base map with the ignition map copied over from the v7 base map as I'm running coil on plug from a legacy gtb.Engine is just a rebuilt V4 Sti with forged pistons and eagle rods, standard heads and cams. Intake manifold is custom with decapped v5/6 yellow injectors which are around 850cc, standard throttle body. NO IAC valve. Turbo is a garrett GT3071r but is not plumbed in at the moment for first start.So the problem is it won't start, it pops occasionally through the exhaust and I've played around with fuel master ranging from 4 - 14 the higher i go the closer it seems to starting. it seems like the timing is off but cam timing is perfect and ignition timing seems good from what i can check so farAny ideas? could the lack of iac be causing it to be very rich? I've checked spark and injectors and they look to working fine, spark seems a bit weak but it is firing occasionally.Any help appeciatedRichard Quote Link to comment Share on other sites More sharing options...
Simon Posted September 7, 2015 Report Share Posted September 7, 2015 Are you seeing an RPM while cranking of around 200-250rpm?Any trigger errors?If you post your map as it is someone can also look over the basic set up. Quote Link to comment Share on other sites More sharing options...
Richard Hainsworth Posted September 7, 2015 Author Report Share Posted September 7, 2015 Hi Simonyes am getting rpm signal around 300rpm with running car attached with jumper leads, i am getting a few trigger errors though, what causes this? afaik it has standard subaru v1-6 trigger setup could it be a faulty sensor? ill upload a copy of my map asap its on my windows laptop which is with car which is not where i live, hopefully wednesday =)any other ideas?Richard Quote Link to comment Share on other sites More sharing options...
Simon Posted September 8, 2015 Report Share Posted September 8, 2015 Could be as simple as needing the arming voltages adjusted. Or it could be a noise issue or cam timing issue.If its only one or two errors at the first crank but no errors once engine is at stable speed then it not an issue. Quote Link to comment Share on other sites More sharing options...
Richard Hainsworth Posted September 8, 2015 Author Report Share Posted September 8, 2015 From memory the arming voltages are 0.5 v, noise could be a problem i have rewired it fully with a new loom from link so i would hope the sheilding etc is ok. i have checked cam timing and it is perfect. i think the errors were up around 18? so definitely a problem there i think. ill get the tune file copied from the ecu tomorrow and upload it asap!Really appreciate your support Simon A+++ Richard Quote Link to comment Share on other sites More sharing options...
Richard Hainsworth Posted September 9, 2015 Author Report Share Posted September 9, 2015 here is a copy of my tune file. Hope you find something obvious Richard RichardHainsworthmap9915.pcl Quote Link to comment Share on other sites More sharing options...
Richard Hainsworth Posted September 11, 2015 Author Report Share Posted September 11, 2015 Any ideas anybody? Quote Link to comment Share on other sites More sharing options...
Simon Posted September 11, 2015 Report Share Posted September 11, 2015 I would be checking the polarity of the crank and cam sensors are correct. You want a positive voltage as the tooth approaches the sensor and it to fall and go negative as the tooth moves past.If polarity is incorrect on either sensor you could get errors.Also try with a lower filter level on trigger2 Quote Link to comment Share on other sites More sharing options...
Richard Hainsworth Posted September 13, 2015 Author Report Share Posted September 13, 2015 hi SimonChecked the voltages and they were going negative to positive, swapped pins over and fired up first pop!Thanks heaps for your help! now its time to get it tuned!Richard Quote Link to comment Share on other sites More sharing options...
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