Will contaminated fuel (water in fuel)cause two a/f sensors to fail and the mass air flow sensor? Check engine light was on, car would stutter for about 30 seconds, then stop, happened for about 30 miles then stopped altogether.
Lexus Q&AAsk Your Question
1998 Lexus ES300 Question: a/f sensors, mass air flow sensors
Answer #1mastertech6371 October 04, 2011, 06:13Master
do you know for a fact that you have contaminated fuel??
your filter will trap most of the water and the little that makes it to the injectors will stop the car from running. the sensors should be ok unless the car is submerged in water.
the likely hood of both o2 sensors and mass air flow failing at the same time are really slim.
is someone guessing at these items being bad?? what are the codes??
Replyaspear70, October 04, 2011, 10:33Rookie
Sorry for the late reply, I'm trying to get the mechanic to get back to me with codes. He told me it was water in fuel, but the company who supplies the gasoline is saying im the only customer who complained about water in gas, and they are a pretty high volume station. When I get the codes i'll post them here. Thanks for your help