02 sensor error codes, fronts same as rear?
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02 sensor error codes, fronts same as rear? So on my 66 chevelle that I just put an LS1 in, I've got 2 errors codes. Both for non communication between 02 sensors, left and right.
I had my harness reworked and ECU flashed by current performance for no cats, so just single 02 sensors on each bank. When I got my harness back, I noticed that both the harness and my 02 sensors had female connectors which must mean I was using the front 02's from the donor car? I don't have the rear 02's which have male connectors. Anyway I figured the 02 sensor themselves were the same so I just cut the wires and soldered them. Are the front and rear 02 sensors from a 98 trans am not the same? Do I just have them wired wrong you think? Any help appreciated!
I had my harness reworked and ECU flashed by current performance for no cats, so just single 02 sensors on each bank. When I got my harness back, I noticed that both the harness and my 02 sensors had female connectors which must mean I was using the front 02's from the donor car? I don't have the rear 02's which have male connectors. Anyway I figured the 02 sensor themselves were the same so I just cut the wires and soldered them. Are the front and rear 02 sensors from a 98 trans am not the same? Do I just have them wired wrong you think? Any help appreciated!
Last edited by brettd85; Jan 21, 2011 at 08:41 PM.
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FYI my codes are P0134 and PO154, oxygen sensor not active/communicating.
Searching comes up with alot of different information. Is it not ok to solder and extend the 02 sensor? Do I need to buy new 02's now?
Searching comes up with alot of different information. Is it not ok to solder and extend the 02 sensor? Do I need to buy new 02's now?
Last edited by brettd85; Jan 21, 2011 at 09:11 PM.
I think your harness is wired wrong, your front and/or rear 02 sensors have the same type connectors, front and rear MAY/ARE differant leight wire, but CONNECTER are same . I do not think it is good to solder the wires
just my .02' Johnny
just my .02' Johnny
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All I know is the 02 sensors I put in came from the donor manifolds and looked like this;
Harness connector on left is from my stock harness that was modified by current perrformance. Connector on right is from my 02 sensor
So I guess my question is,
1) did I solder the wires backwards? If so how do I diagnose it? Wiring chart?
2) Can you not disrupt an 02 sensors wiring/connector? If so can I buy 2 new sensors? Would bosch 13444 work? I will just extend the harness more and solder the connectors back on. A member is selling 2 online for a decent price.
.jpg)
Harness connector on left is from my stock harness that was modified by current perrformance. Connector on right is from my 02 sensor
So I guess my question is,
1) did I solder the wires backwards? If so how do I diagnose it? Wiring chart?
2) Can you not disrupt an 02 sensors wiring/connector? If so can I buy 2 new sensors? Would bosch 13444 work? I will just extend the harness more and solder the connectors back on. A member is selling 2 online for a decent price.
Would bosch 13444 work? I will just extend the harness more and solder the connectors back on. A member is selling 2 online for a decent price.
[/QUOTE]
this pic is correct , I DO NOT know about the 13444, I am holding both a OE front sensor and a Carvett rear BOSCH #13111 which I run for front as they have long wires and I run long tubes
may 2010 the bosch list for118.63 cost me 60.89 at Orilly I think the OE are about same price
good luck Johnny
[/QUOTE]this pic is correct , I DO NOT know about the 13444, I am holding both a OE front sensor and a Carvett rear BOSCH #13111 which I run for front as they have long wires and I run long tubes
may 2010 the bosch list for118.63 cost me 60.89 at Orilly I think the OE are about same price
good luck Johnny
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Thanks.
When I think back, these sensors may have actually been from the fronts of a vette. I did a swap for a guy and got the manifolds for free. Anyway, I just ordered new bosch 13444 sensors from a member here for $55 shipped. I'll put them in and solder the connectors back on, call it good.
When I think back, these sensors may have actually been from the fronts of a vette. I did a swap for a guy and got the manifolds for free. Anyway, I just ordered new bosch 13444 sensors from a member here for $55 shipped. I'll put them in and solder the connectors back on, call it good.
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OK so last question now that I'm getting 2 new oxygen sensors.
The engine harness has 4 wires to each sensor. However, 2 are black. I was able to keep them straight while I was cutting and soldering but now they are together I have no idea. How do I know which is which without trial and error? Does it matter since the factory didnt use different color wire for whatever reason?
The engine harness has 4 wires to each sensor. However, 2 are black. I was able to keep them straight while I was cutting and soldering but now they are together I have no idea. How do I know which is which without trial and error? Does it matter since the factory didnt use different color wire for whatever reason?
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Hello , usually there are 2 purple wires , those are heater wires and indeed can be wired either way . Then there is a pink wire and a gray wire and these are polarity sensitive . You might have to cut back some of the tape/plastic wiring cover to get to the factory wires that still have color . Also , the front 2 sensors are for fuel trim ....etc and the back 2 are for checking that the catilytic convertors are doing their job , so it matters which wiring and connector are located . Good luck
