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Hi. This is the build log of my Volvo 960 T5 build. The car originally had a 2.5 straight 6 lump. I'm swapping a 2.3L inline 5 turbo from a 850 Turbo. http://i74.photobucket.com/albums/i251/hun_narancs/Volvo/960%20T5/DSC_0656_small_zps3ecf465f.jpg http://i74.photobucket.com/albums/i251/hun_narancs/Volvo/960%20T5/DSC_1333_small_zps1670b75c.jpg http://i74.photobucket.com/albums/i251/hun_narancs/Volvo/960%20T5/DSC_1520_small_zps0b735c6d.jpg Engine/drivetrain mods so far: - rebuilt engine by previous owner - cams out of a N/A engine. longer lift, more overlap. - custom intake manifold - kevlar clutch & 850R pressure plate In the 850 I was running a modified RICA tune. Unfortunately the stock engine managent system can not be used after putting the engine into the 960. In the 850 the ignition is distributor type and the distributor cap doesn't fit between the engine and the firewall. I've already fabricated a "star" shaped distributor (850 distro cap cut up and "re-worked" + 940 2.3 i4 turbo distributor cap) but I don't trust that... it is a custom made distributor cap.. enough said... http://i74.photobucket.com/albums/i251/hun_narancs/Volvo/960%20T5/DSC_1437_small_zps2cc1c1a5.jpg http://i74.photobucket.com/albums/i251/hun_narancs/Volvo/960%20T5/DSC_1441_small_zps6ea5f874.jpg http://i74.photobucket.com/albums/i251/hun_narancs/Volvo/960%20T5/DSC_1454_small_zpsafed65ba.jpg That is why I'm turning to the VEMS direction. Modifying the stock motronic system is complicated and there is no 100% working solution. VEMS solves every problem (EMS vise) I have to deal with at the moment. Coil on plug ignition instead of the distributor style I can fit any kind of injectors. The whole build is documented on the turbobricks forum: http://forums.turbobricks.com/showthread.php?t=277359 I'm going to concentrate on engine management side of the build here. Wiring, setup, tune, logs. -------------------------------------------------------------------------------------------------------------------------------------- 03/06/2013 VEMS is in a 850 T5 for testing. We couldn't get it to run. Standalone harness. Sometimes it backfires to the intake, sometimes shoots black cloud out of the tailpipe. RPM signal - check http://www.vems.hu/files/NarancsVolvo/trigger.png Fuel pump - check (for troubleshoot purposes, wired to fix +12V) Injectors - check. Has +12V during cranking Ignition - wiring good, checked with a spare COP. Coil packs are in working condition. (no inbuilt ignitors, driven by IGBTs). Has +12V during cranking. h[0]=08 02 01 04 10 20 40 80 h[1]=00 60 48 30 18 00 00 00 h[2]=20 40 30 10 00 00 00 00 '''Ignout-wiring Apparently''' (please confirm !) * cyl1 ignch0 * cyl2 ignch1 * cyl4 ignch3 * cyl5 ignch4 * cyl3 ignch2 Notes: * Leaving out ignch2/3 would make sense if using logiclevel ignouts (so that a device with 2 IGBT can be also plugged in) ** and wiring so that ignch numbers follow in sequence (with the exception of channels left out) makes it easier to review later (if one finds with strobe he needs to rotates ignout channels) * this was nicked form a working setup and wired accordingly. ** That's OK, leave it that way than, just document it precisely ! Config: https://docs.google.com/file/d/0BxBPRngsj-GsemdkQWJ5djZwNFk/edit?usp=sharing Error log: https://docs.google.com/file/d/0BxBPRngsj-GsemdkQWJ5djZwNFk/edit?usp=sharing Could you help me out here? Thanks. -------------------------------------------------------------------------------------------------------------------------------------- 05/06/2013 Started all over. Ignition order is ok, no more ignition during intake cycle. Still no start :( Made new logs, available here: http://www.vems.hu/filethingie.php?subdir=NarancsVolvo/Logs%20june%2005 please take a look Spark seems strong enough, but '''ignition can be at very wrong place''' maybe ? * Strobe it What '''injector PW''' is best with 330cc / min injectors and "batch fire all inj during cranking" option enabled ? * 2.5 msec at 20C ?
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