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Prado EX5 2L-T Crank Angle Sensor

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  • Prado EX5 2L-T Crank Angle Sensor

    Hi all.... really need your help with this one:

    I bought a Toyota LandCruiser Prado EX5 Turbo Diesel EFI LHD about a year and a half ago and had to change the engine. It's finally all done and the LC is up and running again. Really the only problem was caused by not being able to use the crank angle sensor. Therefore my questions for you:
    1.) What exactly does the crank angle sensor do?
    2.) Does effect the fuel injection pump?
    3.) Is it for pollution control?

    The engine is running really well, the new engine imported from Japan was in great condition, low millage, but the LC has less power. Its not really noticeable unless going uphill, almost seems like the turbo is kicking in a little late or not with the full boost. The check engine light is on (the little amber light) due to the crank angle sensor not being hooked up.

    Any help would be greatly appreciated, I just can't seem to find the correct LC manual. The only one we have is not covering the EFI engine.
    Prado EX5 - LHD - 2LT-E

  • #2
    Where is the crank angle sensor?

    Where is the crank angle sensor located? I have a 1990 Prado & have never seen that unit.

    Is yours left hand drive? Mines right hand drive. Never seen a lefty except for land cruisers they imported to Canada that had different hood & front clip & not 4 door.
    Gerald
    Last edited by Turbo diesels; 03-03-2007, 02:14 AM.
    Where ever you are, that's where you'll be !!!
    :D

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    • #3
      Hi Gerald;

      My Prado is a right hand drive as well... 1990

      Check out this link for the sensor position:
      http://www.showmesome.info/hilux/info/manuals/1KZ-TE/

      The picture below shows the sensor, just zip-tied, not in its original location (of course).
      Last edited by CaribooPrado; 03-03-2007, 02:43 AM.
      Prado EX5 - LHD - 2LT-E

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      • #4
        Sorry, the link above doesn't get you to the correct page... here's the sensor location:
        Prado EX5 - LHD - 2LT-E

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        • #5
          The 2L-TE fuel pump will never operate correctly without the Crank Position Sensor (and the crank to suit) and a Coolant Temp Sensor. Both are connected to the ECU to control the operation of the fuel pump.

          Did you replace a 2L-TE engine with a 2L-T?

          Nev
          Last edited by NiftyNev; 03-03-2007, 06:03 AM.
          Toyota Surf \"92 LN130
          2.4 TD 2L-TE

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          • #6
            Originally posted by NiftyNev View Post

            Did you replace a 2L-TE engine with a 2L-T?

            Nev
            Yes, I did... EFI is hooked up and running, but not all that well...
            how could I go about installing the sensor? Is it timed or synced?
            I hope we'll get it to work. I'm driving it right now, anybody knows if that's a bad idea? Can I wreck the EFI without having the sensor hooked up?

            Thanks so much for the help and replies!
            Prado EX5 - LHD - 2LT-E

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            • #7
              There should be a socket for it built into the block. You may have to remove the plug and then just install the CPS. You shoudnt have to set it up because it works off the crank as it rotates past the CPS it sends a signal. Basically an electromagnetic pickup. -Todd
              www.DieselToys.com
              Diesel Conversion Specialists

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              • #8
                Originally posted by DieselToyz View Post
                There should be a socket for it built into the block.
                Thanks Todd, I'll check....
                Prado EX5 - LHD - 2LT-E

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                • #9
                  Originally posted by DieselToyz View Post
                  There should be a socket for it built into the block. -Todd
                  I just can't find the location... the drawing of the sensor location in the manual isn't much help either, as its not very clear (might be better in the actual hardcover manual).

                  Any hint to where I should look for it would be great. I've googled for hours, but no pics of where the sensor should be.
                  By now I've read a lot about how the Crank Angle Sensor (or Crankshaft Position Sensor) works and I'm convinced that not having the sensor installed is my problem with the loss in power.

                  Thanks for all the advice! It's highly appreciated and I'm such a newbie...
                  Tom
                  Prado EX5 - LHD - 2LT-E

                  Comment


                  • #10
                    Mines the same truck, I could see where its located...



                    Did you just change the block & head & put the original pump & outside extras, AC Alt etc back on? If so.... Interesting..... You could consider putting a 2LT pump on....

                    It would be difficult to drill the Block & position that sensor exactly where it should be. It senses the crank therfore it would have to be very precicely mounted.
                    Last edited by Turbo diesels; 03-04-2007, 01:02 AM.
                    Where ever you are, that's where you'll be !!!
                    :D

                    Comment


                    • #11
                      So, if I understand you correct we've used the electronic fuel pump on the "wrong" 2L-T engine. I have the pump that came with the 2L-T orginally and I should use that one. That's why we can't locate the space for the crank angle sensor.

                      If we change the pump will the engine run or do we have to make adjustments to the wiring? In other words, will the computer know its non EFI? Does it matter?

                      I hope I can sort this out... this forum is great. I'm so far from any major centre its difficult to find someone specializing in this kind of engine and I'm just an electrician and not much of a mechanic (as you guys can tell by now).

                      The picture below shows the pump that came with the 2L-t, the second pic is the pump originally mounted to the 2L-TE now on the 2L-T
                      Prado EX5 - LHD - 2LT-E

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                      • #12
                        I believe the Crank Position Sensor works of a raised section on the Con Rod and a 2L-T will not have this unless it happened to get a 2L-TE crank/Con Rod during production changes.I don't have a good pic of this and can't find a diagram in the EPC but believe it is the part I have circled in red.



                        As I stated before you will also need a Coolant Sensor. Pic of location below.


                        Nev
                        Toyota Surf \"92 LN130
                        2.4 TD 2L-TE

                        Comment


                        • #13
                          Even if you drilled the block to accept the sensor, the crank likely does not have the "cut" out to trigger the sensor. (I could be wrong) so your likely going to have to install the 2LT pump, dont forget you will have to hook a pressure signal Via vaccum tubing from the intake, to the top of the boost compositator and a vaccum signal(from the vaccum pump) to the lower portion of the boost comp, otherwise you will have very little power as well.
                          also I'm not sure if the connections are the same but dont forget the tac signal so your tac will work in the dash.
                          you will likely end up with lots of stuff that was hooked up to the 2lte pump that will be unplugged, is your truck an automatic?? if so there could be issues with a tps signal to tell the tranny when to shift.
                          and in the end you will have to remove the "check eng lite" as it will be on all the time.
                          Others who have worked on the 2lte can likely give you better answers than I can, but the stuff I mentioned are things that may or may not be an issue
                          Nick

                          2001 Dodge 2500 4x4 24Valve DIESEL, Edge Juice with attitude, (120hp-350tq) 4inch Stainless MagnaFlow Exhaust. Jammer II injectors (80hp) AirDog Fuel pump

                          FOR SALE 1991 4Runner powered by 3.0 Mercedes

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                          • #14
                            There was a guy from Trinidad I think, who said his mechanic set up a crank sensor to get a signal from the power steering pulley. I have serious doubts this could ever work but he was sure it did. This was posted on the Aussie site. Here's the link.

                            http://www.toyotasurf.asn.au/forum/v...teering+pulley

                            Nev
                            Toyota Surf \"92 LN130
                            2.4 TD 2L-TE

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                            • #15
                              Thanks guys... I've double checked the location of the sensor using the pics above. Nothing.

                              Nick, its not an automatic, hopefully that will help.

                              Interesting thread about the sensor mounted so its getting a signal from the steering pulley, but at this point I will try using the non EFI pump. Hopefully I get it done this week. Will let you know how it works out...
                              Thanks, Tom
                              Prado EX5 - LHD - 2LT-E

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