Elpuma's 88 hatch

Starting to go obd1.
Ordered a few things from HA Motorsports
http://img828.imageshack.us/img828/8434/img1023ky.jpg

The chipping kit
http://img207.imageshack.us/img207/7553/img1028hp.jpg

ROM with p75 basemap
http://img259.imageshack.us/img259/8679/img1031yv.jpg

Picked up a dizzy
http://img803.imageshack.us/img803/7634/img1033k.jpg

http://img821.imageshack.us/img821/2268/img1034i.jpg

Then the rest of the things i needed like p06 ecu and conversion harness from boomslang
http://img20.imageshack.us/img20/3329/img1036qn.jpg

http://img716.imageshack.us/img716/4258/img1037cj.jpg

Desoldered the areas where i was going to add parts from the kit.
http://img840.imageshack.us/img840/9383/img1044u.jpg

Soldering things in
http://img839.imageshack.us/img839/8190/img1048y.jpg

Finished
http://img692.imageshack.us/img692/3927/img1054ixx.jpg

Depinned and switched b11 and b15 around. Then i did switched b12 and b16.
http://img100.imageshack.us/img100/422/img1098dr.jpg

Took my seat out.
http://img338.imageshack.us/img338/2673/img1093c.jpg

Stock ecu
http://img88.imageshack.us/img88/5708/img1094hr.jpg

p06 with conversion harness installed
http://img40.imageshack.us/img40/2326/img1095he.jpg

To get the new dizzy to fit in I had to grind a bit off the thermo housing
http://img528.imageshack.us/img528/2939/img1099fm.jpg

So stock dizzy
http://img4.imageshack.us/img4/4805/img1100cr.jpg

Obd1 dizzy
http://img827.imageshack.us/img827/3460/img1101v.jpg

Here you can see why i ground a bit of the thermo housing.
http://img42.imageshack.us/img42/7089/img1103xl.jpg

Famn thats awesome. Why did you switch the wiring order?

Nice man

I switched the wiring order because the the harness i bought is not meant for our accords. If you want a pure simple plug and play harness you just gotta pay an extra $50.
Here's the thread were i got the info from to use a civic obd0 to obd1 harness.
https://www.3geez.com/forum/showthread.php?t=62375

All I need to complete my conversion is the shielded wires.

You made the obd1 conversion look so simple! What jumper harness did you use?

I guess its easy. I used Boomslang MPFI OBD0 to OBD1 conversion harness.
I used this pinout to double check everything on it http://carotman.no-ip.com:8888/perso...0A3pinout.html

then i came up with this


OBD1->OBD0 - Function
A01 ->A01 - #1 injector
A02 ->A07 - #4 injector
A03 ->A03 - #2 injector
A04 ->N/C - VTEC solenoid Valve
A05 ->A05 - #3 injector
A06 ->N/C - O2 Sensor Heater Control
A07 ->A6&A12 - Fuel Pump Relay (FLR1)
^^boomslang A07 ->A12&14
A08 ->N/C - Fuel Pump Relay (FLR2)
A09 ->A11 - EACV
A10 ->N/C - EGR solenoid valve
A11 ->N/C -
A12 ->N/C -
A13 ->B06 - Check Engine Light (MIL)
A14 ->N/C -
A15 ->B01 - A/C Clutch Relay
^^boomslang A15 –>B02
A16 ->N/C -
A17 ->N/C -
A18 ->N/C -
A19 ->N/C -
A20 ->B02 - Purge Control Solenoid Valve
^^boomslang A20 ->A06
A21 -> run a wire to dizzy - Igniter Power Source (IGP1)
^^boomslang A21 ->15&17
A22 ->N/C - Igniter Power Source (IGP2)
A23 ->A02 - Power Ground (PG1)
A24 ->A04 - Power Ground (PG2)
A25 ->A13 - Main Relay IGP1 (IG Power)
A26 ->A18 - Logic Ground (LG1)
A27 ->N/C -
B01 ->A15 - Power Source (IGP2)
B02 ->A16 - Logic Ground (LG2)
B03 ->N/C -
B04 ->N/C - Service Check Connector
B05 ->B08 - A/C Switch (ACS)
B06 ->N/C -
B07 ->N/C -
B08 ->N/C - P/S Pressure Switch
B09 ->B13 - Starter Switch Signal (STS)
B10 ->B18 - Speed Sensor
^^boomslang B10 ->B16
B11 ->C01 - CYL Sensor
^^boomslang B11 ->B08
B12 ->C02 - CYL Sensor
^^boomslang B12 ->B10
B13 ->C03 - TDC Sensor
B14 ->C04 - TDC Sensor
B15 ->run shielded wire to dizzy- Crank Angle Sensor
^^boomslang B15 ->C01
B16 ->run a shielded wire to dizzy- Crank Sensor
^^boomslang B16 ->C02
D01 ->A17 - Back Up Fuse
^^boomslang D01 ->B01
D02 ->N/C - Brake Switch
D03 ->N/C - Knock Sensor
D04 ->N/C- Service Check & Ignition Timing Connector (SCS)
D05 ->N/C -
D06 ->N/C - VTEC Pressure Switch
D07 ->N/C - Data Link Connector
D08 ->N/C -
D09 ->B14 - Alternator
D10 ->B19 -
D11 ->C07 - Throttle Position Sensor (TPS)
D12 ->N/C -
D13 ->C06 - TW Sensor
D14 ->C16 - O2 Sensor
^^boomslang doesn't run this connection but they provide wires to use an obd1 o2 sensor
D15 ->C05 - Intake Air Temperature Sensor
D16 ->N/C -
D17 ->C11 - MAP Sensor
D18 ->N/C -
D19 ->C15 - Sensor Voltage (VCC1)
D20 ->C13 - Sensor Voltage (VCC2)
D21 ->C14 - Sensor Ground (SG1)
D22 ->C12 - Sensor Ground (SG2)

The pinouts in bold are the ones you have to rearrange. Underneath them in bold i show how boomslang ran them which is wrong and needs to be arranged like the top one.

I think this info might also be in the obd-1 conversion thread. Good to know another person that had success with it!! Keep up the good work, man! :thumbup:

I've posted it aswell.

But hey, figuring things out is half the fun.

Quote:

---

Originally Posted by 89T

I've posted it aswell.

But hey, figuring things out is half the fun.

---

Yupp. I believe it's all in the obd-1 thread, right? Maybe we should get a better DIY for obd-1 conversion that doesn't have all the comments. That would be cool for anyone trying to do it

I'll try and make a DIY with lots of pics and stuff once i get my conversion all done.

Here is my information if you want to double check your's .
https://www.3geez.com/forum/showpost....&postcount=291

Thank you 89T.

Lookn good man, I'll be mixing my set up around soon :)

Also, smart idea about that tw sensor.

SHE RUNS!! i'll post a vid later tongith.

There it is
http://www.youtube.com/watch?v=QLuTx...ature=youtu.be

That's awsome, another obd1 swap complete.

yea only thing that isn't working is my tachometer. Any ideas why?

So here is the pigtail i used for the dizzy. At the jy i go to they take all the parts of the engine out so i used a different 8 pin connector. Stock dizzy only has 4 wires and obd1 has 7 (8 if using external coil). Pretty much connect the stock wires as so
stock ->obd1 dizzy
orange ->orange
white ->white
orange/blue ->orange/blue
white/blue ->white/blue
http://img407.imageshack.us/img407/2013/img1131h.jpg

http://img59.imageshack.us/img59/9559/img1132k.jpg

On the stock dizzy cut this wire off.
http://img59.imageshack.us/img59/9453/img1134ie.jpg

There will be 3 wires in there.
http://img404.imageshack.us/img404/4556/img1135w.jpg

This pigtail i'm using agian was from a different part of the car but just make sure the correct wires en up on the dizzy
obd0 ->obd1 dizzy
black/yellow ->black/yellow
blue ->blue
http://img10.imageshack.us/img10/5468/img1139w.jpg

So with the stock engine harness you should be able to connect these 6 pins onto the obd1 dizzy
http://img442.imageshack.us/img442/5985/img1140w.jpg

Congrats on the OBD1 swap!

For the last 3 wires that aren't connected yet, i ran wires from the ecu to them. The blue/green wire needs to be shielded and goes to B15 on the obd1 ecu. Blue/yellow also shielded goes to B16 on the obd1 ecu. Yellow/green goes to A21 on obd1 ecu.
http://img254.imageshack.us/img254/3981/img1157e.jpg

http://img43.imageshack.us/img43/4638/img1150fu.jpg

Here is a pic of my conversion harness after i moved some things around to match the obd0(accord) to obd1 pinouts in post #32.
http://img338.imageshack.us/img338/4392/img1146d.jpg

To minimize the hassle of desoldering and soldering on the conversion harness i moved A6 over to A14. You can leave that red wire unplugged since its not needed.
http://img26.imageshack.us/img26/4520/img1151kx.jpg

http://img833.imageshack.us/img833/7030/img1152rw.jpg

To use stock o2 sensor i cut C16
http://img39.imageshack.us/img39/9295/img1154ea.jpg

Used the white wire provided by boomslangs 8pin sub harness
http://img826.imageshack.us/img826/4349/img1155a.jpg

Connect, solder, shrink tube and you're good to use stock o2 sensor.
http://img138.imageshack.us/img138/3923/img1156q.jpg

Nice Set-up Elpuma...But didn't you call for the OBD1 harness they could make for you for the accord? either way congrats on getting it done! looks great.

I emailed them but never got back from them. I called but for some reason they were closed for like the whole week. Either way i saved myself some money by just buying this harness. And i was able to find out all the pin outs and make a list for ppl that just wanna make there own harness :)

Quote:

---

Originally Posted by elpuma

I emailed them but never got back from them. I called but for some reason they were closed for like the whole week. Either way i saved myself some money by just buying this harness. And i was able to find out all the pin outs and make a list for ppl that just wanna make there own harness :)

---

huh thats weird... but glad it all worked out! have you gone for a drive yet? any difference?

Yeah i took it for a spin. Idle is more smooth. Accelerates quicker than before.