View Full Version : ??? 19718 - Oxygen (Lambda) Sensor B1 S2 / B2 S2 Connections Swapped
dWiGhT
May 26th, 2010, 02:59
Ok... I'm a little bit confused by the following fault code, the harness is swapped?:
Address 01: Engine Labels: None
Control Module Part Number: 4D1 907 558 D
Component and/or Version: 4.2l V8/5VT G 0003
Software Coding: 0006752
...
1 Fault Found:
19718 - Oxygen (Lambda) Sensor B1 S2 / B2 S2 Connections Swapped
P3262 - 008 - Implausible Signal
Readiness: 0000 0001
V8weight
May 26th, 2010, 03:02
Quite simple actually. Either your engine has been out or your secondary O2 sensors have been changed, and they installed them in the wrong position. Bank one is swapped with bank two. You can just swap the plugs at the fire wall and rescan to double check.
dWiGhT
May 26th, 2010, 03:18
actually just before I bought it the Milltek exhaust was put on... is the plugs on the firewall visible from the top??
dWiGhT
V8weight
May 26th, 2010, 03:37
Ya, they're on the passenger side of the firewall.
It can just be an instance of a bad signal. I've had this happen once, and never again. I wouldn't worry about it unless its happening all the time.
V8weight
May 26th, 2010, 05:00
It can just be an instance of a bad signal. I've had this happen once, and never again. I wouldn't worry about it unless its happening all the time.
I agree, I just saw your earlier thread where you stated that you ran the battery low. The Bosch engine management system hates low voltage situations, so I would suggest you give the battery a full charge, clear the codes, and go from there.
dWiGhT
May 27th, 2010, 07:01
Reset the code and it came back within 5 miles... so I figure next I'll try switching the plugs on the firewall.
Can someone post a diagram from the service manual on were they are located??? thanks...
its the plugs on the firewall, passenger side, behind airbox. SHould be green, brown, and black in color.
dWiGhT
May 27th, 2010, 17:19
its the plugs on the firewall, passenger side, behind airbox. SHould be green, brown, and black in color.
right in front of my face! Nice. The only two that would swap were the black and green one... swapped them and will see what happens.
dWiGhT
dWiGhT
May 27th, 2010, 19:12
btw, what is the middle connector go to??? It is keyed so it won't connect to either of the outside ones...
dWiGhT
dWiGhT
May 28th, 2010, 03:03
So after switching the connectors it threw a CEL on me after about 5 miles.
and now I think it is time to take it to the shop...
==============================================
Address 01: Engine Labels: None
2 Faults Found:
...
16517 - Oxygen (Lambda) Sensor B1 S1: Response too Slow
P0133 - 001 - Upper Limit Exceeded - MIL ON
16985 - Internal Control Module: Memory Check Sum Error
P0601 - 008 - Implausible Signal - MIL ON
Readiness: 0000 0101
==============================================
I reversed the connectors back to what it started out with... see what that does again...
dWiGhT
JRS-RS6
May 28th, 2010, 08:39
right in front of my face! Nice. The only two that would swap were the black and green one... swapped them and will see what happens.
dWiGhT
After the swap did you clear the codes?
JRS-RS6
May 28th, 2010, 11:54
Your Readiness Code also seems to be telling: EVAP and Cats failed. You may have an issue with the EVAP system.
My understanding is that if the ECU sees the O2 Sensors failing it runs the car rich to protect the engine from higher temps associated with being run to lean. When the car is testing the O2 sensors (readiness) it adjusts the mixture up and down (apparently individually) to determine if they are operating properly. With them backwards it failed and than set the mixture rich which has now fouled the sensors and cats. Reconnect them correctly reset DTCs and drive the snot out of the car to try to burn the sensors and cats clean. Reset DTCs again allow the car to cool overnight, start the car and let idle for 15 minutes to reset readiness. PM me with your e-mail address and I will send you a procedure for manually setting readiness when I get home tomorrow night.
dWiGhT
May 28th, 2010, 15:19
After the swap did you clear the codes?
Yep... clear the codes and got these after like 5 miles of driving
...
16517 - Oxygen (Lambda) Sensor B1 S1: Response too Slow
P0133 - 001 - Upper Limit Exceeded - MIL ON
16985 - Internal Control Module: Memory Check Sum Error
P0601 - 008 - Implausible Signal - MIL ON
...
dWiGhT
May 28th, 2010, 15:22
I'm not quite sure if I have the full Milltek exhaust on it with downpipes, etc. Could that be an issue???
TozoM8
May 28th, 2010, 17:50
I'm not quite sure if I have the full Milltek exhaust on it with downpipes, etc. Could that be an issue???
3 on the pass side, 1 on the driver' side. 2 of then pre cat sensors the other two is right after the turbos. Do you still have the pre-catalitic converters?
dWiGhT
June 1st, 2010, 19:02
I'm not quite sure if I have the full Milltek exhaust on it with downpipes, etc. Could that be an issue???
Does anyone have pictures of what the stock downpipes look like vs. the Miltek downpipes?
dWiGhT
dWiGhT
June 14th, 2010, 07:34
So I actually had it flashed back to stock and everything is OK now... go figure.
4everRS
June 14th, 2010, 12:12
Good to hear that fixed the issue. Did you ever find out what tune was on it? Time to call eurocharged.