Converted from Obd0 TO Obd1 problems !

Reply Subscribe

Thread Tools

Search this Thread

Jan 25, 2005 | 01:09 PM

Euro98ITR

Thread Starter

Honda-Tech Member

Joined: Jul 2002

Posts: 985

Likes: 0

Converted from Obd0 TO Obd1 problems !

A friend of mine just converted his B16a Obd0 to Obd1. A b16a Obd1 distributor was installed followed with a 4 wire 02 sensor by a qualified mechanic. Everything was wired correctly. The engine started but the CEL came on!
It gave these all these codes : 4, 9, 20, 21, 22, 41 .

Any suggestions ?

Jan 25, 2005 | 01:13 PM

CRX_Control

Honda-Tech Member

Joined: Apr 2004

Posts: 1,131

Likes: 0

From: Trial User

Re: Converted from Obd0 TO Obd1 problems ! (Euro98ITR)

4 is ckp 9 is cyp , 21 is vtec , 41 is oxygen sensor.20 is electrical load detector.(he definatly didnt wire correctly)

Jan 25, 2005 | 03:24 PM

CrazyKoreanCrx

Honda-Tech Member

Joined: Jan 2002

Posts: 773

Likes: 0

From: Chicago, IL

Re: Converted from Obd0 TO Obd1 problems ! (CRX_Control)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CRX_Control »</TD></TR><TR><TD CLASS="quote"> 4 is ckp 9 is cyp , 21 is vtec , 41 is oxygen sensor.20 is electrical load detector.(he definatly didnt wire correctly)</TD></TR></TABLE>

Totally agree with Control with the wiring part. How did the mechanic wired it up and is your friend using a jumper for the ecu? Like what was done.

Jan 25, 2005 | 03:31 PM

4drEF

Keyboard Humorist

Joined: May 2002

Posts: 9,814

Likes: 11

From: Granada Hills, Ca, USA

Re: Converted from Obd0 TO Obd1 problems ! (Euro98ITR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Euro98ITR »</TD></TR><TR><TD CLASS="quote">Everything was wired correctly.</TD></TR></TABLE>

No it wasn't or you wouldn't be getting codes like that.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Euro98ITR »</TD></TR><TR><TD CLASS="quote">
Any suggestions ?
</TD></TR></TABLE>

Find somebody that can wire it correctly.

Jan 25, 2005 | 03:36 PM

CRX_Control

Honda-Tech Member

Joined: Apr 2004

Posts: 1,131

Likes: 0

From: Trial User

Re: Converted from Obd0 TO Obd1 problems ! (4drEF)

well anyways, how did you convert it? using a conversion harness?what brand?(pmed crazykoreancrx back)

Jan 26, 2005 | 01:18 AM

Euro98ITR

Thread Starter

Honda-Tech Member

Joined: Jul 2002

Posts: 985

Likes: 0

Re: Converted from Obd0 TO Obd1 problems ! (CRX_Control)

The conversion was done by an Obd0 to Obd1 conversion Jkobdconversionharness.com

We will double check the wiring.

Jan 26, 2005 | 01:22 AM

Euro98ITR

Thread Starter

Honda-Tech Member

Joined: Jul 2002

Posts: 985

Likes: 0

Re: Converted from Obd0 TO Obd1 problems ! (Euro98ITR)

Anyone can supply a chart or some type of information about the wiring ?

Trending Topics

How achievable is 250-300hp RELIABLY on a boosted civic?

5

180
''simply BLACK''

570

86.7k
No luck finding Rebuild kit

3

154
1996-97 Ignition Switch compatiblility

2

116
Crank No Start B Series Turbo Install

6

264

Jan 26, 2005 | 04:23 AM

blo2k1

Honda-Tech Member

Joined: Jun 2004

Posts: 327

Likes: 0

From: blackhole, new york, USA

Re: Converted from Obd0 TO Obd1 problems ! (Euro98ITR)

Obd0 to Obd1 wiring harness.
53 to 45 pins. + 4

A - 18
B - 11
+--------+------------+--------------+----------------------------------+--------------
| pin_id | wire_color | pin_function | pin_name | 4G (pr3 pin)
+--------+------------+--------------+----------------------------------+--------------
| A1 | BRN | INJ1 | INJ1 | -> A1
| A2 | YEL | INJ4 | INJ4 | -> A7
| A3 | RED | INJ2 | INJ2 | -> A3
| A4 | GRN/YEL | VTS | VTEC solenoid | -> ADD -> vtec selenoid
| A5 | BLU | INJ3 | INJ3 | -> A5
| A6 | ORN/BLK | PO2SHTC | O2 sensor (heating element) | -> ADD [o2 heater control ->blk (under wht wire)]
| A7 | GRN/BLU | FLR1 | fuel pump (main relay) | -> A12
| A9 | BLK/BLU | IACV | IAC valve | -> A11
| A12 | GRN | FANC | engine coolant temp switch | -> B4
| A13 | GRN/ORN | MIL | MIL (check engine light) | -> B6
| A15 | BLK/RED | ACC | (a/c compressor clutch) | -> B3
| A16 | WHT/GRN | ALT C | alternator | -> B5
| A20 | RED | PCS | EVAP purge control solenoid | -> A6
| A21 | YEL/GRN | ICM | ICM | -> B15
| A23 | BLK | PG1 | ground *(main relay ground) | -> A2
| A24 | BLK | PG2 | ground *(main relay ground) | -> A4
| A25 | YEL/BLK | IGP2 | to main relay and to gound for o | -> A13 [splice for o2 -> blk (under grn)]
| A26 | BRN/BLK | LG1 | gound | -> A18
| B1 | YEL/BLK | IGP2 | to pin A25 | -> A15
| B2 | BRN/BLK | LG2 | ground to shields for CYP & TDC | -> A16
| B5 | BLU/RED | ACS | a/c switch | -> B8
| B9 | BLU/WHT | | starter signal | -> B13
| B10 | ORN | VSS | vehicle speed sensor | -> B16
| B11 | ORN | CYP P | CYP -P | -> B10
| B12 | WHT | CYP M | CYP -M | -> B12
| B13 | ORN/BLU | TDC P | TDC -P | -> C3
| B14 | WHT/BLU | TDC M | TDC -M | -> C4
| B15 | BLU/GRN | CKP P | CKP -P | -> C1
| B16 | BLU/YEL | CKP M | CKP -M | -> C2
| D1 | WHT/BLU | VBU | Back Up Power | -> B1
| D2 | GRN/WHT | BKSW | brake switch | -> C10
| D3 | | KS | Knock Sensor | -> ADD -> Knock sensor
| D4 | BRN/WHT | SCS | service check connector | -> mil [toggle switch with ground]
| D6 | BLU/BLK | VTM | VTEC pressure switch | -> ADD -> vtec pressure switch
| D9 | WHT/RED | ALT F | alternator | -> B14
| D10 | GRN/RED | ELD | electric load detector | -> B19
| D11 | RED/BLK | TPS | TPS Signal | -> C7
| D13 | RED/WHT | ECT | ECT sensor | -> C6
| D14 | WHT/RED | PHO2S | O2 sensor | -> C16 [splice for o2 -> wht]
| D15 | RED/YEL | IAT | IAT sensor | -> C5
| D17 | WHT/YEL | MAP | Map Signal | -> C11
| D19 | YEL/WHT | VCC1 | MAP 5V | -> C15
| D20 | YEL/BLU | VCC2 | TPS 5V | -> C13
| D21 | GRN/WHT | SG1 | MAP GND | -> C14
| D22 | GRN/BLU | SG2 | TPS GND | -> C12 [splice for o2 -> grn]
+--------+------------+--------------+----------------------------------+

or do this

Simple Obd0 to Obd1 wiring harness.

A1 -> A1
A2 -> A7
A3 -> A3
A4 -> ADD
A5 -> A5
A6 -> ADD
A7 -> A12/A14
A9 -> A11
A12 -> B4
A13 -> B6
A15 -> B3
A16 -> B5
A21 -> B15
A23 -> A2
A24 -> A4
A25 -> A13
A26 -> A18/A16
B1 -> A15
B2 -> A16/A18
B5 -> B8
B9 -> B13
B10 -> B16
B11 -> B10
B12 -> B12
B13 -> C3
B14 -> C4
B15 -> C1
B16 -> C2
D1 -> B1
D2 -> C10
D3 -> ADD
D4 -> mil
D6 -> ADD
D9 -> B14
D10 -> B19
D11 -> C7
D13 -> C6
D14 -> C16
D15 -> C5
D17 -> C11
D19 -> C15
D20 -> C13
D21 -> C14
D22 -> C12

Jan 26, 2005 | 05:42 AM

Euro98ITR

Thread Starter

Honda-Tech Member

Joined: Jul 2002

Posts: 985

Likes: 0

Re: Converted from Obd0 TO Obd1 problems ! (blo2k1)

We are still using Obd0 injectors. They are supposed to work ok with the OBD1 ecu.

Jan 26, 2005 | 06:17 AM

#10

88civichbz6

Honda-Tech Member

Joined: Feb 2004

Posts: 142

Likes: 0

From: columbus, oh, United States

yes the injectors will work with the resistor box.
double check all of the wiring and did you cut and resoider the wires or make converson plugs

Jan 26, 2005 | 11:23 AM

#11

Euro98ITR

Thread Starter

Honda-Tech Member

Joined: Jul 2002

Posts: 985

Likes: 0

Re: (88civichbz6)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88civichbz6 »</TD></TR><TR><TD CLASS="quote">did you cut and resoider the wires or make converson plugs</TD></TR></TABLE>

We are using a harness from blown90hatch .

Jan 27, 2005 | 04:20 AM

#12

Euro98ITR

Thread Starter

Honda-Tech Member

Joined: Jul 2002

Posts: 985

Likes: 0

Re: (Euro98ITR)

Anyone else can confirm that we dont need OBD1 injectors?

Jan 27, 2005 | 09:27 AM

#13

88civichbz6

Honda-Tech Member

Joined: Feb 2004

Posts: 142

Likes: 0

From: columbus, oh, United States

Re: (Euro98ITR)

if you wired up the injector resitor box then you use obd0 injectors bipass the box and you use obd1 injectors.

this is only true for obd-1 ecus

Jan 27, 2005 | 10:06 AM

#14

CRX_Control

Honda-Tech Member

Joined: Apr 2004

Posts: 1,131

Likes: 0

From: Trial User

Re: (88civichbz6)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88civichbz6 »</TD></TR><TR><TD CLASS="quote">if you wired up the injector resitor box then you use obd0 injectors bipass the box and you use obd1 injectors.

this is only true for obd-1 ecus</TD></TR></TABLE> yup. shouldnt throw the codes that your throwing anyhoot. jkconversion harnesses are good , so its just probably your wiring.