Oil pressure sender; how necessary?

[gotsomegetsome]

I've been searching around the forums and tsrm and as much as I can tell, the oil pressure sender's only job is to tell you the oil pressure on the gauge that lies in the cabin.

Is this true? comments?
Thanks guys

 

[hvyman]

It goes to the ecu.

http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=48

Why exactly do you want to delete it?

 

[gaboonviper85]

The ecu uses it as another source to determin engine load iirc...but I highly doubt any changes to the timing/fuel are effected by it as that's the job of the afm, tps, and o2....

Many have removed it and run fine but many have also removed an egr system....personally untill someone can really dig into the ecu and tell us why the ecu reads oil pressure I highly doubt removal of the sender will have any negitive effects.

My opinion is strictly based on ignorance of the ecu oil pressure readings...I have no clue so don't take what I say as "advice"....It makes no sense for an ecu to require an oil pressure reading unless we had a low pressure warning on the dash which we don't.

 

[speedgilligan]

^^ with that being said....why would you want to remove it? kinda seems like a good thing to know about IMHO

 

[gaboonviper85]

To install an aftermarket guage sender in it's place...who needs two oil pressure guages?

 

[jetjock]

My opinion is strictly based on ignorance of the ecu oil pressure readings...I have no clue so don't take what I say as "advice"....It makes no sense for an ecu to require an oil pressure reading unless we had a low pressure warning on the dash which we don't.

Now there's a post that belongs in the Tech Section if I ever saw one. The ECU uses oil pressure for idle speed control.

 

[gotsomegetsome]

To install an aftermarket guage sender in it's place...who needs two oil pressure guages?

Precisely. I figure the less useless crap down there, the better, and why have two senders? Has anyone replaced one with an aftermarket unit that successfully outputs voltage along the same rate as the OEM sender?

 

[figgie]

Precisely. I figure the less useless crap down there, the better, and why have two senders? Has anyone replaced one with an aftermarket unit that successfully outputs voltage along the same rate as the OEM sender?

Because as jetjock has so eloquently put, the TCCS uses the oil psi for idle comp. It is the same shit that occured with the EGR, just because people don't know the IMPLICATIONS of what they are removing, they just foolishly remove it without asking a very pertinent question, that being, is it affecting anything the TCCS does short term or long term. Most can not answer.

 

[89nasupra]

Now there's a post that belongs in the Tech Section if I ever saw one. The ECU uses oil pressure for idle speed control.

explain this please.... not to thread jack, but i'm having idle issues that i believe to be a misadjusted TPS/bad IAC motor problem. idles arone 1800 to 2000 RPM i turn it off and restart and it idles around 1000 RPM.

 

[adampecush]

Precisely. I figure the less useless crap down there, the better, and why have two senders? Has anyone replaced one with an aftermarket unit that successfully outputs voltage along the same rate as the OEM sender?

No, but I removed the sensor and added an aftermarket unit with no undesirable effects. I did notice that my car idled at 800 rpm, though that is likely a completely unrelated issue.

---------- Post added at 03:52 PM ---------- Previous post was at 03:51 PM ----------

explain this please.... not to thread jack, but i'm having idle issues that i believe to be a misadjusted TPS/bad IAC motor problem. idles arone 1800 to 2000 RPM i turn it off and restart and it idles around 1000 RPM.

not your oil pressure sensor. I removed mine and the car idles at 800 rpm.

edit: badass, two replies automatically merged into one post!

 

[87GWSupra]

I would just leave it. Theirs nothing wrong with factory gauge. Gets the job done. As far as cleaning stuff up a little sensor and wire isn't going to do much compared to all the other stuff under the hood.

 

[87GWSupra]

Just adding an after though. If you want to go to aftermarket gauge for a more responsive and accurite readings go to mechanical use copper wire not the plastic ones they like to leak.

 

[gotsomegetsome]

Just adding an after though. If you want to go to aftermarket gauge for a more responsive and accurite readings go to mechanical use copper wire not the plastic ones they like to leak.

yea.....I dont know about that....bringing oil into the cabin? I would rather not. Doesnt sound like the best idea to begin with.

800 vs. 750 rpm at idle, doesnt sound like its a horrible thing. Can anyone think of any long term effects that might procure over time with removing the stock sensor?

 

[IJ.]

Why not just leave it alone and install the aftermarket sender in another port on the block?
(ALL in Orange will work)

 

[87GWSupra]

yea.....I dont know about that....bringing oil into the cabin? I would rather not. Doesnt sound like the best idea to begin with.

800 vs. 750 rpm at idle, doesnt sound like its a horrible thing. Can anyone think of any long term effects that might procure over time with removing the stock sensor?

its safer then it sounds. True it can leak but only if installed poorly. Have mechanical on my mud drag truck works great. I just like them because their accurate and responsive. So its just a personal preference.

 

[hvyman]

Ya but if something wears the line going into the cabin like heat, cheap hose, something rubbing on it then you got 40psi of oil ruining your interior. Electric would be a better choice.

 

[87GWSupra]

Why you use copper lines and install it properly. But I do agree much easier to use electric gauge.