Search | Car Forums | Gallery | Articles | Helper | AF 350Z | IgorSushko.com | Corporate |
| Latest | 0 Rplys |
|
XJ6| XJ8| XJ12 | XJR Classic and Current XJ Models, including the R series. |
Show Printable Version | Email this Page | Subscribe to this Thread |
|
Thread Tools |
07-30-2008, 09:24 AM | #1 | |
AF Newbie
Join Date: Jun 2008
Location: Norwich
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
|
1993 Soveriegn - O2 sensor wiring - tracing
Looking for help tracing what seems to be a wiring fault in the oxygen sensor circuit, diagnostics so far below:
Car lost power during a journey with "Fuel Fail 44" on VCM, limped home to find that this is the code for the Oxygen sensor, so out with Haynes to check:- 1) Sensor heater resistance 4.8 ohms - haynes says should be "about 5-6 ohms" 2) No voltage on heater circuit at pigtail connector 3) Oxygen sensor relay not switching - relay coil is between white/brown & pink/brown wires 4) White/brown wire has 12V when ignition on; pink/brown wire shows no voltage with ignition on or off. 5) Neither White/brown or pink/brown have continuity to earth with ignition on or off So, it looks as if the relay should be switched by the pink/brown wire going to earth, but this isn't happening. At this point the Haynes wiring diagram ceases to be helpful, just shows pink/brown going to a "high power board". The wires disapear through the bulkhead, can anyone tell me how to find this high power board without stripping the entire dash? tia JonS |
|
|
POST REPLY TO THIS THREAD |
Thread Tools | |
|
|