Diagnostics – MSD 2950 Atomic LS2_LS3 Master Kit Installation User Manual

Page 18

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18

INSTALLATION INSTRUCTIONS

M S D

•   W W W . A T O M I C E F I . C O M   •   ( 9 1 5 )   8 5 5 - 7 1 2 3   •   F A X   ( 9 1 5 )   8 5 7 - 3 3 4 4

CLEAR FLOOD

If a flood condition occurs, turn the key on then press the accelerator to wide-open throttle. This tells

the ECU to turn off the injectors. Crank the engine to clear the flood condition until the engine starts

(release the throttle open start-up).

Note: The TPS is self calibrating so the key must be in the On position prior to pressing the accelerator.

DIAGNOSTICS

There is a self-diagnosing system built into the Atomic EFI. Each

covered parameter can show a status in one of three ways.

“OK”: the parameter is functioning normally.

“Error C”: there is currently an error occurring.

“Error H”: there was previously an error that has been remediated

within the last ten ignition cycles.

Figure 23

COIL CONNECTOR, CYLINDERS 2, 4, 6, 8

BLACK

Pin-A Ground

TAN

Pin-B Coil-2

LIGHT GREEN

Pin-C Coil-4

BROWN

Pin-E

Sensor Ground

WHITE

Pin-F Coil-6

LIGHT BLUE

Pin-G Coil-8

PINK

Pin-H 12 Volts Supply

Pin-D NOT USED

COIL CONNECTORS, CYLINDERS 1, 3, 5, 7

BLACK

Pin-A Ground

BLUE

Pin-B Coil-7

BROWN WHITE

Pin-C Coil-5

BROWN

Pin-E

Sensor Ground

GREEN

Pin-F Coil-3

TAN

Pin-G Coil-1

PINK

Pin-H 12 Volts Supply

Pin-D NOT USED

THROTTLE POSITION SENSOR (TPS)

ORANGE

PIN-1 5V Reference

BLACK

PIN-2 Ground

BLUE

PIN-3 Signal out

IDLE AIR CONTROL (IAC)

ORANGE

Pin-A

Coil 1B

GRAY

Pin-B

Coil 1A

BLUE

Pin-C Coil 2A

BLACK

Pin-D Coil 2B

INTAKE AIR TEMPERATURE (IAT)

BLACK

Pin-A

Ground

VIOLET

Pin-B Signal

CONNECTOR AND WIRING INFORMATION

The following charts show the color, function and location on each connector in case you need to

remove or extend the wiring for relocated coils or a reversed intake manifold mount. More information

is available at www.atomicefi.com

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