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Hello everyone , I'm new here I have a 2002 camaro z28 6spd , it's got 70k original miles on it. Now I believe the oil gauge itself is broken , I already replaced oil pressure sensor and that did nothing . Everything else works fine, so I assume it has to be the gauge itself . Now is there a way I can rebuild the cluster or anyone have recomendations on if I should just run an auxilery oil gauge for now seeing the rest of the cluster is fine . Or is there anything else that could make the gauge constantly show max pressure .
It just stay maxed and never moves right? Have you checked the wires from the engine harness for the oil pressure sending unit to make sure there isn't an issue such as a loose or broken connection.
Very unlikely you have a problem with the actual gauge. ^ Please tell us more about what is actually going on.
It IS common for oil pressure sensors to be duds out of the box. This has happened to many of us. For some reason, nobody can make a reliable sender for this engine.
I'm having a similar issue. However I had to splice in an extension to the "big" ground that goes onto the back of the driver side head. Initially I decided to mount it to the passenger head, but this produced some weird issues so I moved it back. My sending unit still shows maxed out when turning the key to the "on" position. When I turn the key off, the needle will very very slowly start to drop, but it stops around 60 psi.
It just stay maxed and never moves right? Have you checked the wires from the engine harness for the oil pressure sending unit to make sure there isn't an issue such as a loose or broken connection.
Even with the car off the gauge is pinned on max. No matter if the key is on or car is started there is no movement what so ever .Even after the new sensor was put in. There was no change. The dealer said it's probably the gauge but I don't trust dealers entirely. I haven't checked the conection yet where would that be located ?
Even with the car off the gauge is pinned on max. No matter if the key is on or car is started there is no movement what so ever .Even after the new sensor was put in. There was no change. The dealer said it's probably the gauge but I don't trust dealers entirely. I haven't checked the conection yet where would that be located ?
I have the same symptoms. Here's what I've done so far...
This weekend I used a power probe and attempted to ground the wire out. My understanding is the gauge at the dash should go to zero when grounded. No change. With the power probe kit there is a tool that you can use to inject a signal that will help you find a broken wire. When I hooked it up it showed me that the wire is broken right at the connector, even though the insulation is intact. I bought a new connector. You could always try to find the wire under the dash that goes to the gauge and see if there is continuity at the connector. Assuming the other gauges are working correctly I doubt it's the ground for the gauges.
Some of the gauges can go out of range the point where the pickups (inside the gauge, connected to the needle) are no longer in contact. Maybe a wild input from a bad OPSU shot it off the edge?
I would try this next:
- Undo the dash bezels. (Remove the lower IP panel, the panel below the steering wheel, and the trim around the gauge cluster.)
- Pull the gauge cluster out.
- Flip the gauges upside down and then rotate to the side so all the needles fall back to zero.
- Reinstall the cluster and see how it goes!
Sorry I haven't replied to anyone in a while the weather wasn't permited and the car remained in storage longer then expected . Started to work on the cluster again. Looked all over the internet and it looks like somewhere there is a bad ground. Does anyone on here have a diagram or know where I can find the grounding points . Thanks for all the help and ideas so far very appreciative!
Some of the gauges can go out of range the point where the pickups (inside the gauge, connected to the needle) are no longer in contact. Maybe a wild input from a bad OPSU shot it off the edge?
I would try this next:
- Undo the dash bezels. (Remove the lower IP panel, the panel below the steering wheel, and the trim around the gauge cluster.)
- Pull the gauge cluster out.
- Flip the gauges upside down and then rotate to the side so all the needles fall back to zero.
- Reinstall the cluster and see how it goes!
Tried to do what you suggested and the needle shot right back past 80 after I reinstalled and started the car . Thanks for the suggestion though !
You are definitely getting a voltage spike. I'm not sure about a bad ground. Seems to me more likely to be a cut or crossed wire.
We have a sticky in one of these section, which lists out all the grounds. You can also register at AutoZone.com and get access to all the OEM electrical diagrams in their repair center.
Mine did the same thing. It was maybe a broken cable. Put a direct wire to the back of the cluster. You need to check continuity of the sensor to the pigtail back of the cluster
Mine did the same thing. It was maybe a broken cable. Put a direct wire to the back of the cluster. You need to check continuity of the sensor to the pigtail back of the cluster
Ok thanks for the info , with both of us having the same exact issue that's probably the case with me too. Just a side question then , is there an easy way to get to the oil pressure sensor without having to remove the manifold or is that what you did ?
Great this gives me some confidence going into it seeing I have Skinny arms and hands. Would you know which color wire would be the one I'm going to need to re run by any chance ?
[QUOTE=booz;20242027]Mine did the same thing. It was maybe a broken cable. Put a direct wire to the back of the cluster. You need to check continuity of the sensor to the pigtail back of the cluster
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Broken oil gauge 
