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o2 sensor bank1 sensor1

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o2 sensor bank1 sensor1 - 7/17/2005 8:07:08 AM   
jedinpa

 

Posts: 4
Joined: 7/17/2005
From: United States
Status: offline 		I have a 00' 3.4 which keeps throwing this code. Replaced this sensor and check engine light came back on 20 minutes later. There is a pinging noise in the engine when under load. I'm thinking there is a air leak somewhere causing it to run lean.  Or another sensor going bad causing the engine to run lean which would throw this code cause the sensor couldn't compensate for the problem Any suggestions would help, I'm stumped Would like to condsider all possabilities before replacing intake gasket. jedinpa38551.8824652778
Post #: 1
o2 sensor bank1 sensor1 - 7/22/2005 11:09:21 AM   
Patrick

 

Posts: 250
Joined: 3/17/2005
From: United States
Status: offline 		is the CAT new, or newer?

(in reply to jedinpa)
Post #: 2
o2 sensor bank1 sensor1 - 7/22/2005 9:10:49 PM   
jedinpa

 

Posts: 4
Joined: 7/17/2005
From: United States
Status: offline 		CAT is still stock. It has never been replaced.

(in reply to jedinpa)
Post #: 3
o2 sensor bank1 sensor1 - 7/25/2005 12:16:29 PM   
scott4wv37

 

Posts: 4
Joined: 7/25/2005
From: United States
Status: offline 		I have the same problem with the o2 code, what did you find out that it is,  have replaced the o2 sensor, fuel filter, spark plugs, cleaned mass air flow sensor and thinking about the TPS next

(in reply to jedinpa)
Post #: 4
o2 sensor bank1 sensor1 - 7/25/2005 2:27:58 PM   
Patrick

 

Posts: 250
Joined: 3/17/2005
From: United States
Status: offline 		i have seen issues where the O2 sensors are repeatedly going bad because of problems with the CAT...not on this particular vehicle, but in general.  do you have unusually high mileage?

(in reply to jedinpa)
Post #: 5
o2 sensor bank1 sensor1 - 7/25/2005 5:00:55 PM   
scott4wv37

 

Posts: 4
Joined: 7/25/2005
From: United States
Status: offline 		No, not for a toyota.  Only 93,000.  It maybe that my mass air flow sensor is bad b/c I've already cleaned it.  ???????

(in reply to jedinpa)
Post #: 6
o2 sensor bank1 sensor1 - 7/25/2005 5:04:12 PM   
scott4wv37

 

Posts: 4
Joined: 7/25/2005
From: United States
Status: offline

The problem is when I push the throttle down quickly there's a hesitation.  If I put it to the floor theres an even longer hesitation.


(in reply to jedinpa)
Post #: 7
o2 sensor bank1 sensor1 - 7/27/2005 8:21:23 PM   
jedinpa

 

Posts: 4
Joined: 7/17/2005
From: United States
Status: offline

[QUOTE=Patrick]i have seen issues where the O2 sensors are repeatedly going bad because of problems with the CAT...not on this particular vehicle, but in general.  do you have unusually high mileage?[/QUOTE]


 


Only 73,000 miles young, can't imagine cat is plugged but I'll pull it off and have a look.


(in reply to jedinpa)
Post #: 8
o2 sensor bank1 sensor1 - 7/28/2005 1:56:14 PM   
scott4wv37

 

Posts: 4
Joined: 7/25/2005
From: United States
Status: offline 		  FIXED !!!   It ended up being a bad gasket where I had replaced the O2 sensor !

(in reply to jedinpa)
Post #: 9
o2 sensor bank1 sensor1 - 7/29/2005 5:14:42 PM   
jedinpa

 

Posts: 4
Joined: 7/17/2005
From: United States
Status: offline

[QUOTE=scott4wv37]  FIXED !!!   It ended up being a bad gasket where I had replaced the O2 sensor ![/QUOTE]


Thats great you got it fixed! Were you having any pinging noise in engine when accellerating? Truck goes to dealer on monday to see if they can figure it out 


Heres the crazy part, the same day I scheduled the appt., the cel light went out on its own but pinging in engine is still there.


(in reply to jedinpa)
Post #: 10
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