.... катализатор: стр. EC 262
THREE WAY CATALYST FUNCTION
The ECM monitors the switching frequency ratio of heated oxygen
sensors 1 and 2.
A three way catalyst (Manifold) with high oxygen storage capacity
will indicate a low switching frequency of heated oxygen sensor 2.
As oxygen storage capacity decreases, the heated oxygen sensor 2
switching frequency will increase.
Whenthefrequencyratioofheatedoxygensensors1and2
approaches a specified limit value, the three way catalyst (Manifold)
malfunction is diagnosed.
Possible cause
Three way catalyst (Manifold)
l Exhaust tube
l Intake air leaks
l Fuel injectors
l Fuel injector leaks
l Spark plug
l Improper ignition timing
.... простой стеркой не обойтись