its a 1998 clio 1.2 d7f engine , failed mot on emissions .
EXHAUST EMISSIONS LAMBDA READING AFTER 2ND FAST IDLE
OUTSIDE SPECIFIED LIMITS
the problem seems to be with the lambda readings at fast and 2nd fast idle tests.
here are the readings ;
FAST IDLE : MIN-MAX LIMITS = 0.970 - 1.030 ACTUAL = 1.065
2ND FAST IDLE : MIN-MAX LIMITS = 0.970-1.030 ACTUAL = 1.058
any ideas as to what might be causing this ? cat ,lambda sensor or
may be a leak around the cat joints ??