EF_yo_89

HELP ME GUYS!!!

I swapped in a z6 motor with z6 manifold into my 89 civic hatchback si. Im using my stock a6 wire harness with obd1 dizzy and a jumper harness with a p28. Im using the stock a6 injectors and resistor box. First engine codes i pulled were for vtec and o2 sensor. i got the vtec hooked and the code is now gone. i still have the o2 sensor but i dont understand why that MAY cause the motor not to start. im am not gettin any other codes.

Can you guys help me out and point me into the direction i should look.

I have checked the dizzy over and over already the wires are all matching up?

On the sensor for MAP i am using the one off my firewall and the vaccuum solenoid as well. Are there any wires i have to switch around.

The car cranks but will not start. The motor has spark and some fuel pressure, not sure the exact psi.

Thanks for the help!

-Brandon

hondaguyef

put the obd0 diz back on and see what happens. I ran into this same problem before. OBD0 diz fixed it.

falkhen

i have similar problem with my 88 Hatch back i have yet to figure out whats going on but i can post the PIN volts that show whats your suppose to get on that P28.


Pins Wire color Function/Description Voltage Value
A1 Brown INJ # 1 +12 Volts KOEO•
A2 Yellow INJ # 4 +12 Volts KOEO•
A3 Red INJ # 2 +12 Volts KOEO•
A4 Orange/White VTEC Solenoid None (this is GRNDed when active)
A5 Lite blue INJ # 3 +12 Volts KOEO•
A6 Orange/Black O2 Heat Control +12 Volts KOEO•
A7 Green/Yellow Fuel pump Control #1 +12 Volts KOEO•
A8 Green/Yellow Fuel pump Control #2 +12 Volts KOEO•
A9 Green/White EAVC/IAC +12 Volts KOEO•
A10&A11 EMPTY
A12 Yellow/Green Cooling Fan None (this is GRNDed when active)
A13 Green/Orange MIL/CEL +12volts KOEO•
A14 EMPTY
A15 Black/Red A/C Compressor clutch realy +12volts when A/C on
A16 White/Yellow Alternator Signal output/ALT C NONE
A17 Lite green A/T lock up control +12 Volts KOEO•
A18 EMPTY
A19 Yellow A/T lock up control +12 Volts KOEO•
A20 Red Purge control Solenoid NONE
A21 Red/Green ING output signal #1 about +10 volts KOEO•
A22 Red/Green ING output signal #2 about +10 volts KOEO•
A23 Black GRND less then +1 Volt/none if any
A24 Black GRND less then +1 Volt/none if any
A25 Yellow/Black Battery Volts from Fuse +12 Volts @ all times
A26 Black/Red GRND less then +1 Volt/none if any

B1 Yellow/Black Battery Volts from Fuse +12 Volts @ all times
B2 Brown/Black GRND less then +1 Volt/none if any
B3 Green/Blue A/T Shift selector input +12 Volts KOEO•
B4 Green/Black A/T Shift selector input +12 Volts KOEO•
B5 Blue/Red A/C Switch less then +1 Volt/none if any
B6 EMPTY
B7 Green Park/Neutral About +5 Volts KOEO•
B8 Brown/Red Power Steering if GRND=CEL|+12volts(when turning steering)
B9 Blue/White Start Signal input +12Volts in Start position
B10 Yellow/Blue Vehicle speed sensor(VSS) 0-12volts when wheels turn
B11 Orange Cylinder sensor None
B12 White Cylinder sensor None
B13 Orange/Blue TDC Sensor None
B14 White/blue TDC Sensor None
B15 Blue/Green Crank Angle Sensor None
B16 Blue/Yellow Crank Angle Sensor None


There is NO C plug it is D. C plug is empty with no pins. don't be confused

D1 White/Blue Battery Volts +12Volts all times
D2 Green/ white Brakelight switch input +12Volts all times
D3 Empty
D4 Brown Test Connector( timing adjust) +5 Volts KOEO•
D5 EMPTY
D6 Orange/Blue VTEC oil pressureSwitch input 0.5-4.5 Volts
D7 Light Blue Serial Data link None
D8 EMPTY
D9 Pink Alternator FR signal (ALT-RF) about 4.5 Volts KOEO•
D10 Green/Red ELD unit input 2.5-3.5V■: 1.5-2.5V♥
D11 Pink/Black TPS .5Volts Closed 4.5 Volts Open
D12 EMPTY
D13 Red/White Coolant Temp Switch input About +5 Volt
D14 White O2 sensor input Less then .4 volts@closed+.6volts@WOT
D15 Red/Yellow Intake Air TEMP. sensor input about +5Volt KOEO•
D16 Blanks
D17 Pinik/White Sensor Ground SG1 less then 1 volt
D18 White/Red Shift lock Control none
D19 Yellow/Green Refrence Volts (VCC1) About +5 Volts
D20 Yellow/White Refrence Volts (VCC2) About +5 Volts
D21 Green/Blue Map Sensor input about +3volts
D22 Green/White Sensor Ground SG2 less then 1 volt

KOEO• = Key on position Engine Off•
■: Headlights in Swtich Position first position
♥: Headlights in Switch postion second position

Courtesy of American Honda Corp
and Mitchell

this should help you on the ECU side..


falkhen

EF_yo_89

Thanks guys ill try it out. I have a wierd feeling its my ecu....im going to pick up another tonight and well see what happens.