Edelbrock 15022 User Manual

©2004 Edelbrock Corporation
Rev. 6/04 - RS/mc

Catalog # 15022

Brochure # 63-0236

Page 1 of 2

MAP Sensor Voltage Clamp

For Turbocharged 1992-1998 Honda Civics

Catalog #15022

INSTALLATION INSTRUCTIONS

PLEASE study these instructions carefully before installing your new MAP Sensor Voltage Clamp for turbocharged or supercharged 1992-

1998 Honda Civics. If you have any questions or problems, do not hesitate to contact our Technical Hotline at: 1-800-416-8628, from
7am-5pm, Pacific Standard Time, Monday-Friday, or via e-mail at: [e-mail]. Please fill out and mail your warranty
card. Remember to include the model number of this product in the “Part #____” space. Thank you.

• Description: This MAP Sensor Voltage Clamp limits the voltage sent from the MAP Sensor to the ECU to prevent the ECU from
“seeing” boost pressure in turbocharged or supercharged applications. 1992-1998 Honda Civic ECUs will show an error code for the
MAP sensor if boost pressure is read by the MAP sensor. Limiting the MAP sensor output voltage will keep readings at the ECU from
going beyond the normal range seen on a stock naturally aspirated engine, preventing the MAP error code. This kit includes the
voltage clamp, attached wiring, and the required splice connectors.

• CAUTION: It is highly recommended to use a heat gun to shrink the shrink wrap around the provided connectors after making
connections. Use care when using these devices near any flammable material such as carpeting, sound deadening material, etc.
Keep a Fire Extinguisher rated for use on electrical equipment nearby for added safety.

INSTALLATION PROCEDURE

NOTE: Before beginning, make sure the negative cable on the

battery is disconnected, and that the vehicle is on a level surface
with the wheels blocked to prevent movement of the vehicle
while working in and around the vehicle. It is also helpful to have
a service manual for your particular vehicle on hand for
reference.

1. Remove the passenger side kick panel to gain access to the

factory ECU. (See factory service manual, if necessary).
Unplug the A & D plugs from the factory ECU.

2. Follow the wiring instructions as listed below for your

particular vehicle:

1992-1995 VEHICLES

Tap Into The ECU’s Power Source:

Locate the Ignition Power wire, a yellow wire with a black
stripe, in position A-25

(See Fig. 1)

. Cut and then strip both
ends of the cut wire. With a splice connector, connect both
cut ends to the red wire coming from the voltage clamp

(See

Fig. 3)

.

Tap Into the MAP Sensor Ground Wire:

Find the MAP sensor ground wire. It is a green wire with a
blue stripe. It is located at position D-21

(See Fig. 1)

. Cut
the wire and strip the cut ends. Use a splice connector to
connect both ends of the cut MAP sensor ground wire to the
black wire coming from the voltage clamp

(See Fig. 3)

.

Wire Side Female Terminals

A

26 Pin

D

22 Pin

Figure 1 - 1992-1995 Pin Locations

D-21D-19 A-25

Intercept the MAP Sensor Signal Wire:

Locate the MAP sensor signal wire. This is a yellow wire
with a green stripe located at D-19

(See Fig. 1).

NOTE: On 1994-1995 vehicles, this is a pink wire with a

white stripe, located at position D-17. See Fig. 1 for
reference

.

Cut the wire and strip both ends of the cut wire. Using a
splice connector, attach the blue wire with a red stripe on the
voltage clamp to the end of the MAP sensor signal wire that
leads to the ECU

(See Fig. 3)

, and with the remaining splice
connector, attach the blue wire on the voltage clamp to the
other end of the cut wire which leads to the MAP sensor

(See Fig. 3)

.

D-17

(94-95 MAP Signal)

®

1 3 5 7 9 13 15 17 19 21 23 25

INJ1 INJ2 INJ3 FLR1 EACV WARN ACC ATLSB ATLSA IGP1 PG1 IGP1

2 4 6 8 12 16 20 22 24 26

INJ4 VTS HTCNTL FLR2 FANC ACGC PGS IGP2 PG2 LG1

1 3 7 9 11 13 15 17 19 21

VBU TXD/RXD ACGF TH TW TA PB VCC1 SG1

2 4 6 10 14 18 20 22

BKSW SCS VTM EL O2 SIL/SLU VCC2 SG2

©2004 Edelbrock Corporation
Rev. 6/04 - RS/mc

Catalog # 15022

Brochure # 63-0236

Page 2 of 2

Edelbrock Corporation

2700 California St. • Torrance, CA 90503

Tech Line: [phone] • Office: [phone]

Fax: [phone] • E-Mail: [e-mail]

1996-1998 VEHICLES

Tap Into The ECU’s Power Source:

Locate the Ignition Power wire (yellow / black stripe), in
position A-11

(See Fig. 2)

. Cut and strip both ends of the
cut wire. With a splice connector, connect them both to the
red wire on the voltage clamp

(Fig. 3)

.

Tap Into the MAP Sensor Ground Wire:

Find the MAP sensor ground wire (green / white stripe). It is
located at position D-12

(Fig. 2)

. Cut this wire and strip the
cut ends. Use a splice connector to connect both ends of the
cut MAP sensor ground wire to the black wire on the clamp

(Fig. 3)

.

Intercept the MAP Sensor Signal Wire:

Locate the MAP sensor signal wire (red / green stripe)
located at D-3

(Fig. 2).

Cut the wire and strip both ends of
the cut wire. Using a splice connector, attach the blue wire
with a red stripe on the voltage clamp to the end of the MAP
sensor signal wire that leads to the ECU

(Fig. 3)

, and with
the remaining splice connector, attach the blue wire on the
voltage clamp to the other end of the cut wire which leads to
the MAP sensor

(Fig. 3)

.

INSTALLATION (CONTINUATION)

3. Mount the voltage clamp under the dashboard in a
convenient location. Using a heat gun, shrink the insulation
on the splice connectors. Use a piece of heavy cardboard to
shield carpeting and any nearby electrical tape or other
components that could be damaged by heat.

4. Wrap the newly connected wiring with electrical tape to
protect it and secure with tie wraps as necessary.

5. Plug the A & D connectors back into the ECU, and replace the
passenger side kick panel.

6. Reconnect the battery.

Wire Side Female Terminals

A

32 Pin

D

16 Pin

Figure 2 - 1996-1998 Pin Locations

D-12

D-3

A-11

Voltage

Clamp

To Ignition Power

at ECU

To MAP
Sensor
Ground

at ECU

To MAP Sensor

To MAP Sensor

Signal at ECU

Blue/Red

Blue

Black

Red

Splice

Connector

Cut

Figure 3 - Wiring Diagram & Wire Color Coding

Cut

Cut

To MAP Sensor

1 2 3 4 5 6 7 8 9 10 11

INJ 4 INJ 3 INJ 2 INJ 1 S02SHTC P02SHTC ESOL/E-EGR VTSOL LG 1 PG 1 IGP 1

12 13 14 15 16 17 18 19 20 22 23 24

IACV IACVN IACVP PCS FLR ACC MIL ALTC ICM LG 2 PG 2 IGP 2

25 27 28 29 30
VREF FANC 2WBS VSV SLU

1 2 3 4 5

TPS ECT MAP VCC 1 BKSW

6 7 8 9 10 11 12

KS PO2S/LABEL IAT EGRL VCC 2 SG2 SG1

13 14 15 16

SHO2SG SO2S PTANK EL