Thanks for watching Shaun and your comment

It's a shame Halfords doesn't sell them anymore thanks mate

Thanks Allan

Thanks for watching it.

Sometimes when the engine control module can't tell me what's wrong, I have to look at the data myself, then test the sensor in the usual way. Thanks for watching

Thanks Johnny

Hi Jefferson, this doesn't sound too bad, they usually all Ballance out when you add them together. It's only done at idle. When there is a faulty injector it will be a lot of difference. If the milage is high and it is smoking and has refused power it may be worth changing all at the same time. Although I'd check the EGR and intake sent chocked.

I usually look for both to be the same KOEO or I at least look for the MAP to be the same as the known baro pressure in my location again with ign on. I had 101kPa baro and 78kPa MAP so this may be using a separate Baro sensor. I have heard scannerdanner say the baro can be the same sensor and will only read the baro with ign on engine off, or at full throttle for a gasoline engine, that makes sense for a non turbo. Thanks for watching and for your comment

@@mechanicmatt871 yeah matt, baro can be read from a tiny hole in the map sensor (so is separate) or from inside the ecu or even from the maf. So if the map changes wrt baro on start up then it has a separate sensor

Hi does this have a vacuum solenoid to move the turbo actuator? If it has I would see how much vacuum is there with the solenoid disconnected and with the solenoid activated Incase it is leaking or blocked inside. Thanks for watching

@@mechanicmatt871 no it has an electric solenoid to move the turbo actuator , it's the one that i told you that i disconnected earlier , thnks for the reply

found out what was the problem?

I am not familiar with this model of Toyota, I would check that it is not getting air into the fuel line from the tank to the diesel pump. I may block off the fuel pipe at the tank and then see if I can pull a vacuum at the diesel pump end with a hand vacuum pump. Maybe even rig up a small diesel container to supply the high pressure diesel pump and see if things improve that way you would know it's a supply problem. Hope this helps and thanks for watching

I have this problem as well, I saw another video that says it could be the actuator valve that needs to be replaced, which doesn’t allow your intake valve to open up in time/at all. I got a PedalBooster installed which increases throttle-response, which leads me to believe that this might be the problem with my Hilux I hope you got it sorted out by now🤝

Hi Manuka, it's really hard to say. A few things could cause that. Although I would start by looking at live data for anything that is out of spec. Do you hear an intake boost leak when you rev the engine? Does the map (boost) pressure increase when reved and return to normal barometric pressure with ign on for your area. Could be due injectors. It's hard to say without seeing it. Thanks for watching

Thanks for watching Esteban, yes I was testing at the MAP on this one, I had a look at the live data to find something that wasn't expected, main thing that stood out was the map although I mentioned the MAF while looking through the lists. Cheers Matt

I don't know without seeing it, it's worth scanning for fault codes and looking at live data for something that stands out. don't forget something unrelated like a binding brake. If you were in Cornwall I could take a look at it.

Hi, Did you find the issue with your car and it's solution ?

@@Waheed.w Yes

Can you kindly describe what was causing the issue and how did you solve it? I am having same issue with my hilux

@Waheed.w first check on diagnosis machine for any trouble codes. What are the codes if any??

It is giving P1604 code which is startability malfunction

Have you any fault codes with your car, it is always a good place to start, then look at live data for something not doing what it should.

Look at the electric actuator on the turbo, check that it is free to move ok and the wire connector looks good.

@@mechanicmatt871 me prende dos fallas mi toyota hilux 1kd el codigo es p1272 y el p12400 que sera una ayuda porfa ...

Thanks for watching and your comment, in this case the filter and hose were fine.

Yes it was fine after that

Hi Elon, if I was looking at a car with that code, I would look to see if the turbo is vacuum controlled or electronically controlled. If it's vacuum controlled I would check that I had vacuum supplying the vac solenoid and that it had vacuum coming out of the solenoid when it is activated, you could activate it with something like a power probe. I would also check that that amount of vacuum would be enough to move the turbo actuator. If that looked okay I would then check the potentiometer was changing its signal voltage whilst the actuator moves, that's if it has a position sensor. If it was an electric actuator on the turbo it would be similar tests, just without the vacuum testing. Hopefully this helps. Thanks for watching.

@@mechanicmatt871 Hello sir! Thank you so much for your reply! Mine is electronically controlled and the actuator rod or linkage (idk what it is called) don't move when starting the engine or reving the engine. and the mechanic said that my actuator is bad and needs a new actuator but he only look at it and didn't do tests or anything. But according to my research the actuator rod or linkage seized up sometimes and that's what causes it to have no power. Should I just replace it sir? because it's so expensive.😭

If you could check that it is getting power and ground at the actuator, or try disconnecting it and see if it is the turbo linkage that is seized or the actuator that is not working. Sometimes I manage to loosen a couple of ten mill headed nuts to create a little free play and see if the linkage on the turbo moves freely and that the actuator rod is able to pivot freely too.

@@mechanicmatt871 thank you sir!😊

That may be one of a few things, if you have a scan tool with fault codes and pin data it could point you in a direction, check fuel pressure, air flow, boost pressure, what is the condition of the fuel filter, could be to many possibilities for me to say.

i'm facing the same problem with my hilux 2kd d4d..rpm can reach until 2 only..speed 40-50kph..could it be problems on the fuel rails?

This ended up getting a new boost pressure sensor (map sensor) it brought the live data closer to what it should be. I had checked the fuel pressure at the rails pressure sensor of camera, I used a scope and it didn't have any drop outs when the car ran badly. I didn't show that because it checked out ok and didn't seem relevent to the video. Sometimes I like to check other possible causes of low power to rule it out so the customer doesn't get told they need something else after a new part was replaced. Also worth checking the turbo actuator is free to move and you have plenty of boost pressure. MAF signal would also be worth checking, The checks should be done at 2000 rpm if that's where the low power is. This is not possible to do a leak off on the injectors because they are in the head and only has one return from the head. Although if it suddenly has a large leak of at higher rpm it could indicate that you have an injector fault. A very quick and easy test would be a smoke test through the air intake to check for leaks. It's usually a mechanical fault when there is no fault codes. Thanks for watching and your question

@@mechanicmatt871 so a bad map sensor was the problem?…if so when you changed it the problem was fixed right?

The MAF fixed this one. Although I have noticed on some scan tools there is a difference in map pressure between obd data and vehicle manufacture data. Thought it was worth mentioning. Thanks for watching

I ment map sensor

Try checking for fault codes to see what you get, if no codes have some one take it for a drive with a scan tool and watch fuel pressure, boost pressure (map) , air flow, turbo position. See what is dropping out. Thanks for watching

@@mechanicmatt871 thank you so much i will try. You know in my country africa there are no good mecanic

@@mechanicmatt871 we have already made the diagnosis but it indicates nothing no failure. however the hilux lacks power and it only has 100,000k. I changed the diesel filter, the pump and the injector. do you think the pedal can do that?

That sounds like a possible injector fault or a tight cylinder from something like a spun big end shell or a broken ring, if you could do a relative compression test and one cylinder is higher amperage than the others it will indicate a tight cylinder otherwise it's worth checking for fault codes. Thanks for watching

Check blockage of fuel pipes supply and return and fuel filter

Hi Ian, sorry for the long time before I replied. I work at a garage and don't get much diag work there, it's code read and order what it needs, sometimes other local garages ask if I could do a diag for them on my way home. They have asked if I would work for myself full time, I would like to do that sometime because I enjoy this sort of work.

@@mechanicmatt871 I think its the way its heading I am waiting on a level 3 EV and Hybrid course hear in Ireland its cancelled over covid-19. Just finishing up on Paul Danner Book. I love diagnosing too. Happy new year.

Hybrid and electric vehicles course is something that I would like to do as well, Paul's book has been very helpful for diagnostic work, I see his methods being used by some other KZfaqrs too. Happy new year Ian

Please give me any idea