Self-regulating oil pump...26PSI till 3,500 rpm.

[SugarMouth]

Dan at Littco brought up an interesting observation regarding the self-regulating oil pump and how on vehicles making more power and boost at a lower rpm, having lower oil pressure might not be a preference. This can be coded out.

Anyone have experience with this?

https://www.facebook.com/thelittlet...242621006764/272232733418458/?type=2&theater

 

[777-300ER]

That's not the same motor as ours.

 

[Hoon]

That's not the same motor as ours.

Apparently our cars do the same shit.

Just googled it, it's for fuel economy

VW calls it a feature to "reduce energy consumption."

 

[SugarMouth]

Page 21 will catch you up.

http://www.vaglinks.com/vaglinks_com/docs/ssp/vwusa.com_ssp_922903_2.0l_4v_tfsi_engine.pdf

 

[yirayira]

This can be coded out.

How? Thanks!

 

[Navi]

surprised this hasn't gotten more play. A very interesting fact brought up by Littco. I was reading it on facebook the morning of. My friend sent me a link and I was meaning to comment on this thread. Completely forgot. I'm curious how to code this out as well. Is it vagcom or only through a protune or what? Also, I wonder what kind of effect this will have on the longevity of the oil pump. Is the shorter life span of the oil pump going to be worth the extra protection of the engine and turbo in tuned cars? Will it even make a difference? So much more to understand about this...

 

[SugarMouth]

surprised this hasn't gotten more play. A very interesting fact brought up by Littco. I was reading it on facebook the morning of. My friend sent me a link and I was meaning to comment on this thread. Completely forgot. I'm curious how to code this out as well. Is it vagcom or only through a protune or what? Also, I wonder what kind of effect this will have on the longevity of the oil pump. Is the shorter life span of the oil pump going to be worth the extra protection of the engine and turbo in tuned cars? Will it even make a difference? So much more to understand about this...

You have the same thoughts about it I do.

I think it has to be coded out through Simos.

I have put the info in front of Jeff at UM. Maybe he will play with it at some point.

 

[Navi]

ok, keep us updated. I told my tuner @ stratified. Curious to what he says...

 

[HuangMoney]

Curious too. I saw this on the 5150 page but I honestly am not too familiar with oil pressure, just that low oil pressure when boosting kinda blows engines

 

[777-300ER]

Well I stand corrected. Maybe it's finally time for a tune if someone gets this sorted out.

 

[littco]

Just seen this so thought I'd chip in

Vcds can code the oil pump to stay high but only for 650milea which is the run in period. After that it starts to switch. It's probably not ideal to keep turning it on but maybe max pressure all the time is better than low pressure on a tuned engine. The 26psi and switch was designed to meet the emissions and performance requirements of the stock engine. Tune it and that I would say goes out the window.

The best way to resolve is to change the maps in the tune as it allows you to switch high as rpms increase and low when they decrease below set rpms.

I'm not going to give all the secrets away but the maps are there to be found and I really can see no downside in running more oil pressure earlier on tuned engine. I know for sure the turbo will thank you ��

 

[Calkulin]

Just seen this so thought I'd chip in

Vcds can code the oil pump to stay high but only for 650milea which is the run in period. After that it starts to switch. It's probably not ideal to keep turning it on but maybe max pressure all the time is better than low pressure on a tuned engine. The 26psi and switch was designed to meet the emissions and performance requirements of the stock engine. Tune it and that I would say goes out the window.

The best way to resolve is to change the maps in the tune as it allows you to switch high as rpms increase and low when they decrease below set rpms.

I'm not going to give all the secrets away but the maps are there to be found and I really can see no downside in running more oil pressure earlier on tuned engine. I know for sure the turbo will thank you ��

Do you which setting in VCDS enables that?

 

[777-300ER]

Do you which setting in VCDS enables that?

It's a setting under adaptation for the ECM that is called Run in Oil Pressure.

 

[Navi]

My understanding is using vcds to change this is for a new engine and if you activate it, it will turn off after 650 miles. The real way would be to adjust it based on rpm values through the actual engine tune. At least that's what I understand from Littco's post.

 

[805mk7gti]

Found it with obd11 but doesn't seem to allow me to activate it. Tried it both with engine running and off, no luck.