Hi, hope someone can help,read other posts on this topic but nothing matching my problem
M.O.T failed on emissions, CO-spot on, HC-spot on, tick over and fast idle,
but lambda reading is 1.135,failed.(tick over and fast idle)
Changed lambda sensor,failed again with same reading 1.135.(tick over and fast idle)
Full new exhaust from cat back plus oil change about a month ago so no leaks in system.
no warning light on dash only other symptom is when trying to hold revs at 2,500 rpm it sometimes wont hold there,dies to about 1.500 then picks up back to 2.500,while still holding throttle at same place,is this related to lambda problem?????
what causes the lambda reading be so high?????