P0158 and fuel pressure
TECH Senior Member
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
I don't think their'd be any relation... that code is for high voltage O2 sensor
HO2S Circuit High Voltage Bank 2 Sensor 2
a Post CAT O2 sensor at that....
a Low Voltage pre cat O2 I could see as being fuel pressure related (lean condition brought on by a weak pump) but in this particular case the two aren't related
HO2S Circuit High Voltage Bank 2 Sensor 2
a Post CAT O2 sensor at that....
a Low Voltage pre cat O2 I could see as being fuel pressure related (lean condition brought on by a weak pump) but in this particular case the two aren't related
Help Horist,
The P0158 code may be a loose 02 sim, I'll have to check.
Is there anything in a tune that would cause a fluctuation in fuel pressure. I had a partial tune done then had a trans rebuild and new converter installed. Now I am at 52 #'s of pressure at idle and drops to 40# at wot. Before the partial tune I was at 59# all the time. Any thoughts?
The P0158 code may be a loose 02 sim, I'll have to check.
Is there anything in a tune that would cause a fluctuation in fuel pressure. I had a partial tune done then had a trans rebuild and new converter installed. Now I am at 52 #'s of pressure at idle and drops to 40# at wot. Before the partial tune I was at 59# all the time. Any thoughts?
Last edited by Taphee6; Jun 24, 2005 at 12:52 PM.
