NANO

ENGINE 273 MPFI

243

ENGINE

Overheating

Likely causes are: Over-advanced ignition timing, Use

of fuel with insufficient octanes rating, Weak mixture.

Discard spark plugs showing signs of overheating, and

cure the cause.

Initial Pre-ignition

Caused by serious overheating. Causes are those

listed for overheating but may be more severe.

Corrective measures are urgently needed. Discard

plugs in this condition.

Ignition SystemDiagnosis

Condition

Engine cranks, but will

not start or hard to start

Power fuel economy or

engine perfromance

Possible Cause

Correction

No spark

• Blown fuse

Replace

• Loose connection or disconnection

of high-tension coil(s)

Connect securely

• Faulty high-tension coil(s)

Replace

• Faulty spark plug(s)

Adjust,clean or replace

• Faulty ignition coil

Replace

Maladjusted ignition timing

• Incorrect ignition timing

Adjust

• Faulty spark plug(s)

Adjust,clean or replace