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
- 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