I have a 1993 SC 400. I'm 99.9% sure this is an oil pressure sensor, but I can't seem to find a replacement part at Autozone which is why I need help identifying it on Autozones website. It is the grey object dangling by my oil filter.

Here's a few pics, horrible quality, but it was getting dark, and I don't have a jack on hand.






This is what it connects to.



Please someone link me to a replacement part on Autozones website so I can fix this asap. Not sure why I can't seem to find it.

 

You know what I think I realized my mistake, I believe this is it?

http://www.autozone.com/autozone/par...113019_0_8537_

I keep forgetting my car was a 1992, but it has a 93 engine in it...and on Autozone I have a 92 as my vehicle...

 

Can anyone confirm if that's the right replacement part?

 

Still cant figure out the replacement part for this thing......

It's not just plug in/out like the one shown on autozone, the wire doesn't just pull out. So I need some new wiring too? Any help appreciated.

 

Looks like the oil pressure switch. For the 93 SC400 it looks like OEM part #83530AA011. I included a link below for comparison and you can get it from these guys if you want to make sure you are getting the right part. With the Club Lexus discount it's just $20 OEM.


http://lexus.sewellparts.com/oem-cat...C400-1993.html

 

Also in the last picture you show where it screws in..the part that is broken off is still secured and has a little nipple that that screws into the oil filter assembly. Get a wrench and remove this part and the new one will screw the little treaded nipple into this little hole. Looks like a standard connector release in your third picture that little tab towards the front of the picture.

 

Do Google search for side images of above part number and you will understand what the whole part looks like.

 

Thanks man, I figured it was the oil pressure switch, but the one on autozone is a bit different. Autozone is seriously two blocks away from my house, I wonder if I could just splice those wires to hook it up...

I've had a CEL on since I've gotten the car, the guy told me originally it was the EGR Sensor...I wonder if it's just this.

 

The wiring should be attached to the old oil pressure switch by a connector. You just depress the tab and the connector comes off of the old switch and attaches to the new switch. Unless I'm missing some other problem you have there. The picture you showed of the one from autozone looks like it should work.

 

If you want to find out what codes are in the car use the first link to pull the codes and the information below to find out what the codes mean. Hope this helps.


https://www.clublexus.com/forums/per...-92-sc400.html

LEXUS ERROR CODES/WHAT THEY MEAN

ALL THE ERROR CODES FOR LEXUS AND WHAT THEY MEAN

1 Normal Condition.
2 Air Flow Meter signal.
3 Ignition signal.
4 Engine Coolant Temperature Sensor signal.
5 Oxygen Sensor.
6 RPM signal (Crank Angle Pulse).
7 Throttle Position Sensor signal.
8 Intake Air Temperature Sensor signal.
9 Vehicle Speed Sensor signal.
10 Starter signal.
11 Switch signal.
11 ECU/ECM.
12 Knock Control Sensor signal.
12 RPM signal.
13 Knock Control CPU (ECM).
13 RPM signal.
14 Turbocharger Pressure.
14 Ignition signal.
21 Oxygen Sensor.
22 Engine Coolant Temperature Sensor signal.
23 Intake Air Temperature Sensor signal.
24 Intake Air Temperature Sensor signal.
25 Air-Fuel Ratio Lean.
26 Air-Fuel Ratio Rich.
27 Sub Oxygen Sensor signal.
28 No. 2 Oxygen Sensor signal.
31 Air Flow Meter signal (Vacuum Sensor signal).
32 Air Flow Meter signal.
34 Turbocharger Pressure signal.
35 Turbocharger Pressure Sensor signal.
35 HAC Sensor signal.
41 Throttle Position Sensor signal.
42 Vehicle Speed Sensor signal.
43 Starter signal.
51 Switch signal.
52 Knock Sensor signal.
53 Knock Sensor signal.
54 Inter-cooler ECM signal.
71 EGR System.
72 Fuel Cut Solenoid signal.
78 Fuel Pump Control signal.
81 TCM Communication.
83 TCM Communication.
84 TCM Communication.
85 TCM Communication.

 

Ok I saw the tab to pus for the connector but couldn't get it off for the life of me, will just have to retry. CEL threw up a code 27 when I just checked it....I wonder if this will solve the issue.

 

That's the story of my life. After sitting there for 20+ years in the weather sometimes nuts bolts and connectors don't come off so easy. Sub-oxygen sensor is code 27. These are the oxygen sensors after the catalytic converters. 2 of them. Leave it alone it won't make any difference on the engine management settings but if the converter itself is blocked or previously hollowed you might want to investigate further.

 

Thanks for the help man. It snowed about an inch or two last night, which made putting it in this morning a bit harder, but everything went well. My brother has a car lift at his house, but it's snowed in at the moment otherwise it would have been real easy. Hopefully the weather warms up the snow melts and I can get to checking out those 02 sensors.

 

No problem. I'll make your job a little easier. 27 is sub oxygen sensor left bank according to my repair manual. That is the drivers side very easy to get to but I would hit it with PB blaster for about a week before you try to take it out. Keep in mind that this does not change the way the engine meters fuel or oxygen like the front sensors so if you are low on cash or have other priorities on the car this one can wait. It just throws a light when it is working properly to let you know their is a problem with the catalytic converter. When you get it started out if you get further resistance hit it again with PB blaster or equivalent. They tend to screw up the threads often when you remove them too. A whole nother problem. Good luck with everything. I'm in Florida and the preferred time to work on the car is winter....