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.
B16 engine has 3 VR trigger in the distributor. 24 - 4 - 1 teeth coil types.
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/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.
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