hello thanks in advance
2000 deville standard
88k miles
i got a code of p0420 catalyst efficeincy below threshold bank 1
p0601 int contrl module memory check sum error
the service engine light comes on and the car acts funny
like trans is slipping when i press the acclerator
then about 1 hour later the light goes out and stays out for weeks and then comes back on
when service engine light is out the car runs fine
and also some times when i start my car it starts then cuts off like a hard start
and some times it when i start it up it givee a ticking sound real quick and then it catches to start the car
thanks
is 88k time for a tune up
2000 deville standard
88k miles
i got a code of p0420 catalyst efficeincy below threshold bank 1
p0601 int contrl module memory check sum error
the service engine light comes on and the car acts funny
like trans is slipping when i press the acclerator
then about 1 hour later the light goes out and stays out for weeks and then comes back on
when service engine light is out the car runs fine
and also some times when i start my car it starts then cuts off like a hard start
and some times it when i start it up it givee a ticking sound real quick and then it catches to start the car
thanks
is 88k time for a tune up