[Nasser.almousawi]

I recently installed some mods on my m6 zl1 (2019). ever since I got the car my oil pressure is very high and I will show you a picture. we did replace the pressure sensor. what else do I have to check and what oil should I use?
Note : I am getting a check engine code P06DA.

MY LIST OF MODS :
-Edelbrock kong 2650.
-Upper and lower pulley + balancer. Pushing 13PSI
-stage 2 texas speed 231/235 cam package (LS springs and cam phaser limiter).
-LT4 hydraulic roller lifters
- TS push rods.
-ARP head bolts
-2 inch long tube headers with catalytic converter) green cats.
-Speed engineering heat exchanger.
-DMS thermostat.
-Monster triple disc clutch 1300hp.
-Secondary fuel pump DXS.
-103mm katech throttle body.
-JLT big gulp intake.
-hurst billet short throw shifter.
-LTR7IX-11 sparkplugs /MSD wires.


left picture :- idle
right picture :- 3500RPM

[SFV1LE]

I don’t know what that translates to in PSI, please convert so the US audience can easily understand your pressure.

With all those mods that were hopefully done by a skilled and reputable shop, if you’re having an issue you should be asking your shop about the oil they recommend. I would use 5w40 Dexos 2 (Motul, Valvoline) or M1 ESP 0w40 Dexos 2, you can’t go wrong with those.

If you are having very high idle oil pressure, stop running your car, take it back to the shop that did the work and tell them they broke it. Very high idle oil pressure is a bad sign something is seriously wrong and your motor may be damaged. Before serious damage to all the work you invested a lot of time and money in, make them fix it.

[Camaro1973]

Originally Posted by Nasser.almousawi

I recently installed some mods on my m6 zl1 (2019). ever since I got the car my oil pressure is very high and I will show you a picture. we did replace the pressure sensor. what else do I have to check and what oil should I use?
Note : I am getting a check engine code P06DA.

MY LIST OF MODS :
-Edelbrock kong 2650.
-Upper and lower pulley + balancer. Pushing 13PSI
-stage 2 texas speed 231/235 cam package (LS springs and cam phaser limiter).
-LT4 hydraulic roller lifters
- TS push rods.
-ARP head bolts
-2 inch long tube headers with catalytic converter) green cats.
-Speed engineering heat exchanger.
-DMS thermostat.
-Monster triple disc clutch 1300hp.
-Secondary fuel pump DXS.
-103mm katech throttle body.
-JLT big gulp intake.
-hurst billet short throw shifter.
-LTR7IX-11 sparkplugs /MSD wires.


left picture :- idle
right picture :- 3500RPM

Your gauges are in Kpa. The idle pic your running about 48Psi which is to high for idle. Second pic at 3500rpm your at about 65psi. Your idle should be around 220Kpa. Any idea what viscosity oil they put in? The P06DA is open circuit code. Make sure also the sensor on the right side of the crank wasn't damaged. There's been many reports on mechanics not putting that back in place properly and the belt can damage it.


Either way i would bring it back to the shop that worked on it.

[Nasser.almousawi]

Originally Posted by Camaro1973

Your gauges are in Kpa. The idle pic your running about 48Psi which is to high for idle. Second pic at 3500rpm your at about 65psi. Your idle should be around 220Kpa. Any idea what viscosity oil they put in? The P06DA is open circuit code. Make sure also the sensor on the right side of the crank wasn't damaged. There's been many reports on mechanics not putting that back in place properly and the belt can damage it.


Either way i would bring it back to the shop that worked on it.

My car is at the dealer now because the shop I worked with didn't know what was the problem they just said one of the wires is not sending signal. the dealer checked everything and they are on process of changing the oil pump. new sensor is installed and it was reading the same so my last option is replacing the oil pump. my current oil is 5w50 amsoil and im going back to 0w40 mobile1 for now. I will update you guys and once again thank you for giving me another clue to check.

99.9% of shops in Qatar are scammers especially a shop called BBT. He intentionally jammed a screw into my filter and broke my Magnuson 2650 so that I pay him an extra $10k and wait another 6 months to receive it. another topic for another thread sorry. :')

[Gunkk]

Make sure you have the correct oil filter (PF64) with a 22psi bypass.

[Nasser.almousawi]

Originally Posted by Gunkk

Make sure you have the correct oil filter (PF64) with a 22psi bypass.

I'll be at the dealer in 30 minutes. I will make sure of that too thank you so much. Will keep you all posted.

[MakCamaro]

Following because it's a '19 model.

[Nasser.almousawi]

Originally Posted by Camaro1973

Your gauges are in Kpa. The idle pic your running about 48Psi which is to high for idle. Second pic at 3500rpm your at about 65psi. Your idle should be around 220Kpa. Any idea what viscosity oil they put in? The P06DA is open circuit code. Make sure also the sensor on the right side of the crank wasn't damaged. There's been many reports on mechanics not putting that back in place properly and the belt can damage it.


Either way i would bring it back to the shop that worked on it.

The oil pressure is still high and the dealership is clueless to what the problem is we literally changed the pump and the oil pressure sensor what else do we have to check??

I haven’t driven my car for a total of 13 months because of scammers and people who don’t know shit in Qatar..

[Camaro1973]

Originally Posted by Nasser.almousawi

The oil pressure is still high and the dealership is clueless to what the problem is we literally changed the pump and the oil pressure sensor what else do we have to check??

I haven’t driven my car for a total of 13 months because of scammers and people who don’t know shit in Qatar..

Its got 0w40 or something similar back in it?

[Nasser.almousawi]

Hello everyone. so after further testing and trouble shooting, we found that it was a wire shorting and the GMC dealer took care of it. as stupid as it sound yes.

the pump with these cars aren't the issue. if you see yourself experiencing high oil pressure then save up your money and change the wires that connects to the oil pressure sensor and the one that goes to the oil pump which we all know controls by sending input to the oil pressure relief valve.

[Camaro1973]

Originally Posted by Nasser.almousawi

Hello everyone. so after further testing and trouble shooting, we found that it was a wire shorting and the GMC dealer took care of it. as stupid as it sound yes.

the pump with these cars aren't the issue. if you see yourself experiencing high oil pressure then save up your money and change the wires that connects to the oil pressure sensor and the one that goes to the oil pump which we all know controls by sending input to the oil pressure relief valve.

That’s usually the problem which is why I suggested to check the sensor wires. A few others had it chewed up by a belt. You had work done so I’m just guessing here, but the wiring was probably not put back properly by whoever did your work.

[MakCamaro]

Originally Posted by Nasser.almousawi

Hello everyone. so after further testing and trouble shooting, we found that it was a wire shorting and the GMC dealer took care of it. as stupid as it sound yes.

the pump with these cars aren't the issue. if you see yourself experiencing high oil pressure then save up your money and change the wires that connects to the oil pressure sensor and the one that goes to the oil pump which we all know controls by sending input to the oil pressure relief valve.

Originally Posted by Camaro1973

That’s usually the problem which is why I suggested to check the sensor wires. A few others had it chewed up by a belt. You had work done so I’m just guessing here, but the wiring was probably not put back properly by whoever did your work.

Originally Posted by Camaro1973

The P06DA is open circuit code. Make sure also the sensor on the right side of the crank wasn't damaged. There's been many reports on mechanics not putting that back in place properly and the belt can damage it.

I started following this thread because it is a 2019 ZL1. Glad you sorted this out Nasser and thanks for sharing your experience and how you ended up identifying the issue that caused the high oil pressure.

The following question goes to both Nasser and Camaro1973:

I know I shouldn't worry too much about a failure of the oil pump (mine is a 2020 ZL1), but I always like to be proactive. So pardon my ignorance, but can either of you point me towards the location of the oil pressure sensor and wiring so that I keep an eye every now and then or if I ever decide to mod to avoid ending up with similar issues? Maybe a photo of the sensor itself?

[Dave777]

Originally Posted by Gunkk

Make sure you have the correct oil filter (PF64) with a 22psi bypass.

Yep.

[Nasser.almousawi]

Originally Posted by MakCamaro

I started following this thread because it is a 2019 ZL1. Glad you sorted this out Nasser and thanks for sharing your experience and how you ended up identifying the issue that caused the high oil pressure.

The following question goes to both Nasser and Camaro1973:

I know I shouldn't worry too much about a failure of the oil pump (mine is a 2020 ZL1), but I always like to be proactive. So pardon my ignorance, but can either of you point me towards the location of the oil pressure sensor and wiring so that I keep an eye every now and then or if I ever decide to mod to avoid ending up with similar issues? Maybe a photo of the sensor itself?

Im so sorry I just saw your message. as soon as we start working on the car again. going back to stock that's why. I will try to return to my old setup aka bolt ons 2650.

best of luck to all of you and thank you too for supporting the thread.