TATA Motors Indigo eCS Owner's Manual & Service Book page 121

SPARK PLUG & CARBON CANISTER
SPARK PLUG (MPFI) :
Spark Plug -
Spark Plug No. -
Spark Plug Gap -
You should inspect the spark plugs periodically for carbon
deposits. When carbon accumulates on the spark plug, a
strong spark will not be produced. Remove carbon deposits
using a spark plug cleaner.
0.7mm to
0.8mm
BOSCH
FR6 DC4
0.7 mm to 0.8 mm
Spark Plug Replacement :
1. Clean up any dirt or oil that
is collected around the
spark plug caps.
2. Pull out the spark plug
cables by gripping at the
connector.
3. Remove the spark plug with
the help of a special socket.
4. Check and adjust the gap,
it should be 0.7 mm to 0.8
mm.
5. Replace the spark plug if
the gap is more than 1.2
mm.
MAINTENANCE & CAR CARE
6. Fix the spark plug and tighten it to the torque of 25 Nm
(dry).
7. Fit the spark plug cable, until a 'click' sound is heard.
Repeat the procedure for the other spark plugs.
NOTICE
Tighten the spark plug carefully. Overtightening can
damage the threads in the cylinder head. A loose spark
plug or loose spark plug cable can affect combustion
and cause damage to engine and catalytic converter.
CARBON CANISTER (MPFI) :
As petrol evaporates in the fuel tank, hydrocarbons are
discharged into the atmosphere. The carbon canister stores
these hydrocarbons from the fuel tank.
Air drawn through the carbon canister into the engine should
be controlled to maintain exhaust emissions within desired
limits as well as to ensure good driveability.
The carbon canister should be replaced at an Authorised Service
outlet.
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