HELP! Got a code need help with 02 sensors
Thread Starter
Drifting
Joined: Mar 2001
Posts: 1,270
Likes: 0
From: Rockford IL
HELP! Got a code need help with 02 sensors
I got a check engine light earlier this week, the car started running really crappy, idleing rough, running way rich, anyway, pulled the codes, it says heated oxygen sensor. I replace the 02 sensors, everything is fine for about 20 miles, then the check engine light comes on again, same frickin' thing!! This is what the code reads:
P1133 Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1-8
Any ideas? This is on my new 422 motor, was all set to go to the track tomorrow, and this S#*t has to happen! :mad
P1133 Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1-8
Any ideas? This is on my new 422 motor, was all set to go to the track tomorrow, and this S#*t has to happen! :mad
Drifting
Joined: Jul 2000
Posts: 1,517
Likes: 1
From: Stockholm
Re: HELP! Got a code need help with 02 sensors (kwik8racr)
Strange things happened when one of the O2's was loose in the bung. I got P1133 and some other codes in random. I assume you have tighten everything up when you changed the O2's. Could you have a leak anyway? I would also do as Godspeed says, check the wiring harness because it's quite common to get burned/damaged wires because it's difficult to keep the wires away from the header heat.
:cheers:
[Modified by seanr, 11:59 AM 8/24/2002]
:cheers:
[Modified by seanr, 11:59 AM 8/24/2002]
Drifting
Joined: May 2002
Posts: 1,607
Likes: 1
From: San Francisco CA
Re: HELP! Got a code need help with 02 sensors (kwik8racr)
An exhaust leak 6-12 inches away from the left front O2 sensor can cause P1133 to set. Check to insure the left front O2 sensor is securely installed. Check for corrosion on the terminals and damaged wiring. If everything checks out ok, then you’ll need a scan tool to track down the problem.
