Has anyone been able to successfully pull up oil pressure on a Scan Gauge II (N16 or N18 engine? If yes, what was the production date of your car?

 

Oil pressure its impossible to get it without a tap..You need to put an actual sensor and send the data to an analogue input of a gauge. Someone said that its possible for N18 to get an oil press from OBD. I havent manage to find a way to do it though and i believe you cant as wel..
Oil Temp however is something that you can get from OBD

 

Yes. 2013 R56 S (N18).

 

I will check my n14 with scanguage here in a few. I’ll post up pics.

 

Prior to the N16 and N18 engines (which use a variable volume oil pump) you would be correct. With the N12 and N14 there is an oil pressure switch (single wire) mounted to the cylinder head right next to the vacuum pump. If the oil pressure drops too low, the switch contacts open and the DME turns on the oil pressure warning light. With the N16 & N18 engines, there is no oil pressure switch on the cylinder head. Since the DME needs to know oil pressure to control the oil pressure control valve, and in turn the volume of the pump, they installed an oil pressure sensor on the oil filter manifold. At this location, the switch senses the main discharge oil pressure from the pump before it hits the filter and the various pressure drops as fluid passes various components in the lubrication system. See the schematics below.

 

Thanks for that Scotty!

I sent a message to Scan Gauge because my oil pressure was reading 487. Occasionally it changes to 510. They asked me to check all the hex numbers for the x-gauge, and I entered them correctly. They responded "We have seen multiple vehicles report a stagnant value after recalls or ECU updates". Since your car is newer than mine; I suspect I need a software update for the oil pressure to report correctly.

Again, thanks for your reply.

Does that water-meth system keep your intake valves clean? I put a Snow Performance system on my 335i, but I still have to perform the walnut blasting routing to keep the carbon buildup in check.

 

I think I found the problem. Both the N16 and N18 use the same three wire sensor, but the N16 feeds pins 50, 51, and 19 (DME connector.) The N18 feeds pins 50, 51, and 46. I've sent my findings to Scan Gauge and will post their reply. Scan Gauge will probably have to come up with a different TXD, RXF, RXD, and MTH hex numbers for OPR to display properly for those MINIs with N16 engines.

 

No problem! I hope you can get it sorted. When I had a single nozzle in the charge pipe I would still get carbon build up. Once I switched to the direct port set up, the carbon build up was completely eliminated. The valves look super clean all the time.

 

Awesome! I think I'll order a port injection manifold for my BMW. Thanks for the tip!

Where do you race?

 

Prometh makes a pretty good kit for the N54 and N55.

I'm not racing yet, still grinding away at the HPDE program and getting seat time. I'm planning on getting my competition license in January. I drive with NASA and MaxSpeed Track Days in Georgia, but I am trying to branch out. Seat time has been limited because my job has me out of town a lot this year.

 

Awesome! I just sent them an email to see how much it would cost if I sent them my intake manifold.

What city in GA? I'm in Pensacola; would like to watch the races.

 

Good news! Scan Gauge is sending me a data logger to plug into the MINI (N16) to capture the data on how the N16 sensor is reporting oil pressure. Hopefully, the information will help them solve the problem.

 

Its going to be a calculated value or no?
Even in oil temp the value is not "accurate" its not receiving a number, it calculate the number so the value is so relative that is like you dont have it..! It depends on the fuel/air/how much oil etc etc..

 

That's interesting. What led you to believe the oil temperature was not accurate?

 

Not saying that N16 or N18 engine oil pressure indications are calculated, but calculated values are used all the time in jet engines and they have to be accurate. Sorry, I used to teach F100-PW-220/229 engine theory of operation.

 

I was watching stuff on MC
this one man had his smart phone
with a app showing him everything you need to look at. from a company he had got.
DFIX

 

Sctotty_r56s out of curiosity, does your oil pressure read 14-15 PSI when the engine is off? I ask this as I installed a physical sensor and gauge but connected my Scan Gauge II and setup the X-Gauge for oil pressure and mine does read 14-15 PSI engine off and 14-15 PSI higher than my physical gauge when running.

BTW, my wife and I are Scotty fans as well, gotta love their personalities. We have had 4 total, a black and a wheaton one year apart, when they passed we got another pair black and wheaton that were sisters (I will never do 2 pups at the same time again as it makes it almost impossible to train them). We actually had a Westie 1st then got the 1st Scotty which contracted parvo. We had to separate them and the Westie went to my Mother-in-laws who fell in love with her so we got the wheaton. The westie was the smartest dog I have ever owned. House broke in about two days and learned tricks/obedience at about the same rate. Only problem was she had my MIL wrapped around her little paw.