Insufficent switching problem ?
Thread Starter
Teching In
Joined: Dec 2002
Posts: 48
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From: Mich
Insufficent switching problem ? I have changed the front sensors with new ones and It is still turning on the ses. I did have some 110 octane gas in the tank along with premium 93 .
so I ran it down and put 10 more gals of 93. I don't think there is enough 110 left to hurt now. I just got my turbo installed and tuned to. it runs great .
Will it hurt to run it with the ses on ? can anyone tell me what to do next.
Thanks
so I ran it down and put 10 more gals of 93. I don't think there is enough 110 left to hurt now. I just got my turbo installed and tuned to. it runs great .
Will it hurt to run it with the ses on ? can anyone tell me what to do next.
Thanks
Sounds like your O2s are getting sleepy...it happens. Was the 110 leaded? If so, that'll kill your sensors in a hurry...sounds like you need to bite the bullet and replace them.
Originally Posted by CANXLR8
I have changed the front sensors with new ones and It is still turning on the ses. I did have some 110 octane gas in the tank along with premium 93 .
so I ran it down and put 10 more gals of 93. I don't think there is enough 110 left to hurt now. I just got my turbo installed and tuned to. it runs great .
Will it hurt to run it with the ses on ? can anyone tell me what to do next.
Thanks
so I ran it down and put 10 more gals of 93. I don't think there is enough 110 left to hurt now. I just got my turbo installed and tuned to. it runs great .
Will it hurt to run it with the ses on ? can anyone tell me what to do next.
Thanks
Bill
Last edited by Bill Bowling; Sep 7, 2005 at 03:39 PM.
Your O2 sensors are dead (well, they are on their way to being dead). Replace them. That is the only thing you can do. If the 110 was leaded gas, that is what probably caused (or at least sped up) their demise...
TECH Senior Member
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
I'm assuming the 110 was leaded? if so the sensors will probably need replacing eventually... the lead in the gas coats the sensors so they don't react as fast as they should...
If the gas was leaded then sounds like you'll need to replace your O2 sensors....
as far as running w/the SES on ... it probably won't hurt anything... but you'll have poor gas mileage since I believe these codes cause the car to run Open Loop all the time... so it'll run rich all the time since the PCM can't use the O2 sensors to tell if it's at 14.7:1 AFR
If the gas was leaded then sounds like you'll need to replace your O2 sensors....
as far as running w/the SES on ... it probably won't hurt anything... but you'll have poor gas mileage since I believe these codes cause the car to run Open Loop all the time... so it'll run rich all the time since the PCM can't use the O2 sensors to tell if it's at 14.7:1 AFR
Originally Posted by horist
so it'll run rich all the time since the PCM can't use the O2 sensors to tell if it's at 14.7:1 AFR
