1986 Coupe GT (CIS-E)

Fuel system, chemical cleaning

^ engine MUST be at operating temperature


CAUTION

Always use new sealing washers on connections to eliminate the possibility of fluid leakage while performing the cleaning operation.

^ remove intake air boot
^ center punch and drill (tamper proof) CO plug, and remove
^ reinstall intake air boot

^ remove fuel pump relay from fuse/relay panel
^ disconnect fuel supply line at fuel distributor
^ attach aerosol can adaptor line with shutoff valve (from kit) to supply fitting on fuel distributor

The kit contains two adaptor lines. Choose the appropriate line depending on the type of fitting you are connecting to either banjo fitting or compression fitting.

^ disconnect (large) return line from pressure regulator and fuel distributor
^ install plug (from kit) into fuel distributor

^ install cap nut (from kit) onto open fitting on fuel pressure regulator

The following steps should be performed smoothly WITHOUT pause. Any delay in starting after attaching the aerosol can could cause flooding and a no-start condition.



CAUTION

FLAMMABLE MATERIAL. Hold aerosol container upright, avoiding ALL electrical contact.

CORROSIVE MATERIAL. Do NOT allow to come in contact with painted surfaces or rubber hoses. Refer to label on container.

MAKE SURE all fuel lines are plugged or covered for safety purposes before starting vehicle.


WARNING

Safety glasses MUST be worn while performing this work sequence.

^ thread aerosol container into fitting on - (supply side) adaptor line


WARNING

Hand tighten ONLY.


CAUTION

Install exhaust vent on tail pipe to vent toxic fumes.

^ IMMEDIATELY start engine and run at approximately 3000 RPM until aerosol container is empty (engine will stop running after approximately 5 minutes)

If hard starting occurs, lift the sensor plate via the CO adjustment screw, using CO adjustment wrench P377.

^ repeat operation with a second container of cleaner

^ reinstallation is the reverse of the removal procedure

^ start engine
^ check idle speed and CO content, adjust if necessary
^ install new (tamper proof) CO plug