Need a little help...
Thread Starter
Teching In
Joined: Nov 2001
Posts: 18
Likes: 0
From: Nashville, TN
Need a little help... My car hasn't been running the greatest lately. I pulled the codes and my O2 sensors have crapped out. I replaced them with some used ones I had, but I'm still getting a error on B2. Which side of the car is each bank, B1, B2, driverside, passenger? B2 always shows a little low at WOT and idle, I'm thinking an exhaust leak although I can't hear it. Also, at various times I'm getting really weird 02 readings, like .006 to .200 for brief moments? Should they ever read this low like when I let off or at part throttle?
What should my 02s read at Idle?
I also noticed my Fuel trims are at 0, which I though was weird with all my mods, heads/cam. I'm using the old DOS Autotap version, so I might upgrade and see if this clears up this problem?
Matt
[ December 05, 2001: Message edited by: Sporadic ]</p>
What should my 02s read at Idle?
I also noticed my Fuel trims are at 0, which I though was weird with all my mods, heads/cam. I'm using the old DOS Autotap version, so I might upgrade and see if this clears up this problem?
Matt
[ December 05, 2001: Message edited by: Sporadic ]</p>
Re: Need a little help... O2 readings at idle will fluctuate rapidly from like .0 to .9 that's normal.
B1=front o2s
B2=rear o2s
S1=driver's side
S2=passenger side
O2s may have crapped out if they get contaminated you running rich?
B1=front o2s
B2=rear o2s
S1=driver's side
S2=passenger side
O2s may have crapped out if they get contaminated you running rich?
TECH Addict
Joined: Nov 2001
Posts: 2,003
Likes: 0
From: Live Oak, FL - in the woods where the creatures lurk.
Re: Need a little help... B1 = Bank 1 (driver side)
B2 = Bank 2 (passenger side)
S1 = Sensor 1
S2 = Sensor 2
So the sensors to monitor are B1S1 & B2S1 for pre-cat.
B2 = Bank 2 (passenger side)
S1 = Sensor 1
S2 = Sensor 2
So the sensors to monitor are B1S1 & B2S1 for pre-cat.
Launching!
Joined: Dec 2001
Posts: 263
Likes: 0
From: Jacksonville, FL
Re: Need a little help... [quote]Originally posted by gwj:
<strong>B1 = Bank 1 (driver side)
B2 = Bank 2 (passenger side)
S1 = Sensor 1
S2 = Sensor 2
So the sensors to monitor are B1S1 & B2S1 for pre-cat.</strong><hr></blockquote>
Yep, thats the way I understood it too.
<strong>B1 = Bank 1 (driver side)
B2 = Bank 2 (passenger side)
S1 = Sensor 1
S2 = Sensor 2
So the sensors to monitor are B1S1 & B2S1 for pre-cat.</strong><hr></blockquote>
Yep, thats the way I understood it too.
Thread Starter
Teching In
Joined: Nov 2001
Posts: 18
Likes: 0
From: Nashville, TN
Re: Need a little help... Just a little update guys, I put some new 02 sensors in. Looks like it cleared up the problems. I haven't had any codes appear all night. The car's running much better! I also fixed the little exhaust banging problem. <img src="images/icons/grin.gif" border="0">
And I also verified by pulling the sensor, B1 = driver side, B2 = passenger side.
Thanks guys.
Matt
And I also verified by pulling the sensor, B1 = driver side, B2 = passenger side.
Thanks guys.
Matt
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Thread Starter
Teching In
Joined: Nov 2001
Posts: 18
Likes: 0
From: Nashville, TN
Re: Need a little help... Well guys, the night after I replace the 02s my SES light came back on. <img src="gr_images/icons/mad.gif" border="0"> I just pulled the codes,
P0135 & P0155 - 02 Sensor Heater Circuit Malfunction (Fronts)
P0140 & P0160 - 02 Sensor Circuit No Activity Detected (Rear 02 sims)
Ok, what in the he!! is going on. Could I possibly have a short somewhere causing this crap. Anyone know the voltages of each wire in the harness so I can test?
Any ideas?
Matt
[ December 13, 2001: Message edited by: Sporadic ]</p>
P0135 & P0155 - 02 Sensor Heater Circuit Malfunction (Fronts)
P0140 & P0160 - 02 Sensor Circuit No Activity Detected (Rear 02 sims)
Ok, what in the he!! is going on. Could I possibly have a short somewhere causing this crap. Anyone know the voltages of each wire in the harness so I can test?
Any ideas?
Matt
[ December 13, 2001: Message edited by: Sporadic ]</p>
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