_____ (_ _) | | | | | | (_)
______ | ___ \ | |_/ / | / | |\ \ \_| \_|
#### ## ## ## ####
_____ | __ \ | | | | | | | | | |__| | |_____/
### #### ## ## ## ## ## ## ###### ## #####
IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now. Visit Preferences to set your user name Summary of change: data upload in progress... First Honda b16 engine with vems in hungary? built for drag race b16a2 engine forged rods, pistons darton sleeves garett gt35 turbo etc. http://www.vems.hu/files/tbiro/vti_turbo/20200213_180706.jpg http://www.vems.hu/files/tbiro/vti_turbo/20200220_180442.jpg B16 engine has 3 VR trigger in the distributor. 24 - 4 - 1 teeth coil types. http://www.vems.hu/files/tbiro/vti_turbo/20200305_164200.jpg http://www.vems.hu/files/tbiro/vti_turbo/20200222_105048.jpg ------------ PINOUT INJ1 BROWN INJ2 RED INJ3 BLUE INJ4 YELLOW COIL1 yellow COIL2 blue COIL3 red COIL4 brown CRANK CAM TPS RED/BLUE IAT RED/YELLOW CLT red/white FUEL P green/yellow MIL green/orange 5v OUT yellow/red FAN nincs GND 5V yellow/black VTEC solenoid green/yellow GROUND black 15+ ckpp blue solid ckpm white grey dot tdcp solid green tdcm red grey dot cypp yellow cypm black grey dot iac blue/black pcs red icm1 yellow/green gnd lg1 brown/black gnd lg2 brown/black 12fix/vbu white/blue ------------------------------- oem pinout comment: ACC - A/C relay ACS - A/C switch ALTC - Alternator relay, for control purposes, not present on all ECU?s ALTF - Alternator switch BKSW- Brake switch, for control purposes, not present on all ECU?s CKP - Crankshaft position, (P)ulse or (M)ass, gives several pulses (~20?) during each cam shaft rotation CYP - Cylinder position, (P)ulse or (M)ass, gives one pulse during each cam shaft rotation DLC - Diagnostic connector, communication signal to the 3 wire connector next to the SCS connector ECO - Unknown function (is there an ECO light on D15Z3?) ECT - Engine coolant temperature EGR - Exhaust gas recirculation EGRL - Unknown function (probably related to EGR) FANC - Fan relay, for control purposes, not present on all ECU?s FLR - Fuel relay, 1 is always present, 2 can be ignored IACV - Idle air control valve, controls the 2 wire type IACV valve IAT - Intake air temperature ICM - Ignition pulses, 1 is always present, 2 can be ignored IGP - Battery feed, only active when key is turned INJ - Injector, the number refers to the cylinder used (1 is on the side with the belts) LG - Ground for battery circuit MAP - Manifold absolute pressure MIL - Motor indication light, this one gives the control engine light (CEL) signal PCS - Control solenoid, this one is for the small black cylindric valve on the back of the IM PG - Ground for battery circuit PO2H - Primary oxygen sensor heater, connects with the ground of the car to activate the heater PO2S - Primary oxygen sensor signal SCS - Service connector switch, checks if the SCS connector is hot wired (for reading engine error codes) SG - Ground for 5V circuit, 1 is for the MAP sensor, 2 is for the other sensors STS - Starter switch TDC - Top dead centre, (P)ulse or (M)ass, gives four pulses during each cam shaft rotation TPS - Throttle position signal VBU - Back up battery feed, always active (unless battery is removed) VCC - 5V feed, 1 is for the MAP sensor, 2 is for the other sensors VREF - Unknown function (probably related to wideband oxygen) VSS - Vehicle speed sensor VTM - Oil pressure switch, only -but not always- present on VTEC equiped vehicles VTS - VTEC solenoid, only present on VTEC equiped vehicles ------------- still under construction testing now.. -------------- I have problem about trigger signals. I need help. The iginition system converted to COP. We have 3 signal on the camshaft/distributor (all of them coil types (VR)). First wheel has 24 teeth (use this for primary signal) Second wheel has 4 teeth (not in use) Third wheel has 1 tooth (use this for secondary signal, cam sync) In my theory, the ratio of crank and cam is 2:1. So we need to calculate the 24 teeth to 48 teeth for a full engine cycle. But when I get the 48 teeth by cam, I get two secondary signal too... http://www.vems.hu/files/tbiro/vti_turbo/trigger.jpg http://www.vems.hu/files/tbiro/vti_turbo/v3.3_u014084-2020-03-13-17.09.18.triggerlog http://www.vems.hu/files/tbiro/vti_turbo/v3.3_u014084-2020.03.18-17.38.29.vemscfg Tried samples like 4cyl_c024, 4cyl_12+extra_Honda_K20AX_Camsync and others.. I got secondary trigger bad position or less primary trigger errors. ----- Hello, I have reviewed your trigger log, this seems to be a normal c24+1 trigger arrangement. In trigger settings visual enter the following settings: * Cyl: 4 * Trigger type: Coil type * Special trigger type: Normal * TDC after trigger: 60 * # of teeth of full engine cycle: 24 * first trigger tooth: 1 * secondary mode: cam-sync * press apply to reference tooth table. * power cycle the ecu after pressing burn, afterwards it should show correct rpm. If there are any issues, please upload a small vemslog of engine cranking and another trigger log so i can review. Best regards, Dave ------------- Thank you Dave, 24 teeth is only a half engine cycle, am I wrong? (Crank-cam ratio 2:1) Yes you are wrong, the cam rotates once per cycle, so 24teeth on the cam is 24triggers per cycle. Gunni Thank you, Dave & Gunni. The engine runs now, tuning in progress. Tamas ------------------- *Question: The engine is running nicely but there is continuous trigger errors. I haven't figured out the problem yet TRIGLOG: http://www.vems.hu/files/tbiro/vti_turbo/v3.3_u014084-2020-04-15-18.53.16.triggerlog CONFIG: http://www.vems.hu/files/tbiro/vti_turbo/v3.3_u014084-2020.04.15-20.36.59.vemscfg ---- Hello, I have reviewed your triggerlog v3.3_u014084-2020-04-15-18.53.16.triggerlog and vemscfg v3.3_u014084-2020.04.15-20.36.59.vemscfg; there seems to be a race condition between your secondary and primary trigger (every alternate secondary tooth). To resolve this, please change the polarity of the secondary trigger wires (coming from your Honda dizzy) and take another triggerlog, please upload here and clearly name with "_polarity_sectrig_swapped" so i can easily compare. Best regards, Dave ------- Thanks Dave, Trigger errors gone! Here's the new log: http://www.vems.hu/files/tbiro/vti_turbo/_polarity_sectrig_swapped_v3.3_u014084-2020-04-18-17.43.44.triggerlog tbiro ----------- at high rev, the engine start hesitate. attached a log about is. http://www.vems.hu/files/tbiro/vti_turbo/v3.3_u014084-2020.04.18-18.14.36.vemslog I see some spikes in the rpm signal :( tbiro ---- Hello Tbiro, I have reviewed your triggerlog: _polarity_sectrig_swapped_v3.3_u014084-2020-04-18-17.43.44.triggerlog while the sectrig has moved a little bit it seems its still quite close to a primary trigger tooth. However i do not think that is your problem. Looking at your vemslog you are running "tdc after the trigger" which way out of the recommended range (60-70deg). If your dizzy is in the stock/OEM position than i would recommend moving trigger tooth to 5 and adjusting tdc after trigger to 127-60 = 67. After that confirm the engine timing with timing light. Best regards, Dave Optional: Add document to category: Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.