GAZZUZZ:

Good luck bro

nurey:


... this car type could be my next ride God willing.

Costee:

Maybe that's little needed. If he gets a good complete engine, it might have the valve with its vacuum lines and a throttle body. So the problems get swept away. There remains one or two other things. And this is where the luck comes in. If those other things are good all's well, if not then a new engine will be unavailing.

GAZZUZZ:


I have seen engines that came with their own extra wahala

honmusa:
Enough of derailing let continue !!
Back to the theory of operation of swirl control solenoid!! The reason we are actually making a study out of this solenoid it is to see if it possible for a defective swirl control solenoid to cause rev issue(as claimed by costee) .
If we study it together holistically ,we should be able to draw an objective conclusion on what is the worst possible symptoms a defective swirl control system can cause even if we have a defective ecu that refuse to trigger the solenoid !!!(as claimed by nurey)
We are all learning together !!!
Below is the schematic diagram of the swirl control system

menstrualpad:


The fact that a particular cylinder soaks plug in oil is still not full proof that the engine must be changed!

If anything...the reality of it not revving beyond 2000rpm indicates another underlying issue.

EnigmaticEnigma:
Hey autologic, what about the throttle body fuse and relay and the throttle sensor

Not a car tech, but I just watched YouTube, lol.

Have you ruled those out

honmusa:

We prove that we get to lab

menstrualpad:

I will only believe an independent panel consisting of Gazzuzz, Costee and opusdei.... Not castigating you though. Purely scientific reasons.


If you meet the m272 engine on a bad day caked and soaking plugs not revving .... Engine change ni abi?

OPUSDEI1:
Fear Nissan, fear P1130!
I believe we are all here to learn. I have had the same model of car with same problem come to my workshop for diagnosis and the issue was resolved by a colleague for 30k. The best info I could get from him was that it was vacuum related. Talk about trade secrets.

Replacing the engine MAY solve the problem, but the problem is not with the engine, that I can assure you. Solving P1130 on its own will be way cheaper.

honmusa:

Seems u don't believe in this experiments then no reason for u to continue to follow thus thread again cos it a waste on time on your part !!!
Cos your unbelieve don't change the reality on ground!!!

menstrualpad:


The fact that a particular cylinder soaks plug in oil is still not full proof that the engine must be changed!
.

honmusa:

All those are have overrule since year 2000BC

EnigmaticEnigma:


Lol, na wa oh

but as someone said though, I don't think using 20w 50 oil is a bad thing.

My Toyota manual says to use oil with lower viscosity as standard, but it also permits the use of more viscous oil in high temperature environments and at high speed.

You are making me scared cause if that customer is telling the truth about his maintenance history, I don't see how using 20w 50, every 3k km would be a bad thing.

Some people don't even change their oil after 20,000km, but this guy was diligent enough to change his oil even more regularly than the manual suggests and his reward for that is to buy a new engine, chai!!

I'm scared yo

honmusa:

What is your car model so that I can help you to truly confirm if Toyota say that you can use 20w50 and cover 20,000km before oil change

EnigmaticEnigma:


No, you misunderstood.

I'm not saying Toyota says to change oil every 20,000km, I'm saying that some people don't even change their oil after driving that many kms and their engine still runs fine.

Toyota recommends changing oil every 5000km.

Your customer changed oil even more frequently than that, which was every 3000km. I know it's a Nissan, not Toyota, but I think the recommended oil change intervals should be similar.

honmusa:
I am yet to see a manufacturer that will specifically state that you will have to use 20w50 with frequent oil change for car of year 1997 and above
please let me know if you see any

EnigmaticEnigma:


Hmmm, I actually can't find a Nissan manual that allows the use of 20w 50.

Maybe Nissans really can't use that oil, guess it pays to check your manual.

My Toyota manual actually includes 20w 50 as an option, as shown in the image above

honmusa:

Which year is your toyota

EnigmaticEnigma:


Its a 2010 avensis

honmusa:

20w50 for a 2010 car ??

EnigmaticEnigma:


Lol, yes oo, up Toyota!!!!

GAZZUZZ:
I service 76vehicles for a particular coy. All 76 of them are 2008-2016 vehicles bought brand new. They are all on 20w50. All running on the wrong oil, but all running. When I took over servicing they had been on mineral oil for over 2years, I initially experimented with full synthetic oil on a selected few , but sadly they started burning oil.
Switched back to mineral and oil burn stopped.

My point is, 20w50 is not a death sentence. To an engine if quality oil is used and oil replaced at responsible intervals.