Hi Everyone,
I have got a 3rd generation (1996) Hilux Surf, that I have converted to wvo over 1 and half years ago and have done about 22000 Kms since. I have got a dual tank set up and so far everything was running well.
I am using a delphi filter for the vegie oil and usually change it after about 3000 kms. Occasionally after switching over from diesel the engine light may come on, which is kind of indicating that I need to change the delphi filter. I switch back to diesel for like 30 secs in this case to let the oil warm up in the filter now that it had a splash of hot oil enter into the filter. Then after a short while it starts running through the filter and all is fine. In the next few days I take the first opportunity to change the filter. When I change it, it goes back to normal then I have another 2-5000km before the next filter.
About a week ago the engine light started to come on again. I switched to diesel, but the light seems to have come back even on diesel and the car still had less than normal power. I thought that it was strange and changed the delphi veg filter the next day. However, things did not improve. Over the next day or so the car started to struggle when going uphill, so I thought something more serious was going on, hoping that it was not the IP.
I have then extracted the error code out of the computer, and had an error 14, which says this:
The fault code 14 is for "Timing Control System Malfunction"
This indicates a problem with one of these systems:
-Open or short in timing control valve circuit
-Fuel Filter (clogging)
-Fuel (Freezing, Air in)
-Injection Pump (internal pressure and timing control valve)
-Engine ECU
Also, found this article:
I have a problem with an 03 hilux with a 1KZ-TE ... - JustAnswer
So, to be sure, I have changed the diesel filter as well and found that it was quite dirty. I have not put veg oil into my diesel tank apart from 2 or 3 occasions when on a long trip. I have done this to be prudent so that the filter problem is eliminated on both tanks now.
I have considered that maybe I am getting some air in the fuel. If that is the case then this must be happening after the Pollack valve as it happens on both circuits. I have got rid of the pollack valve and connected the IP hose to the diesel filter directly.
The interesting point was that every time I did something, things became worse. Initially, the car was struggling above 3000RPM. When I changed the diesel filter, the car was struggling above 2000RPM. After removing the Pollack from the equation now I can't even get much up above 1000 RPM.
Next suspicion is the IP or the timing control circuit valve. I have now visited a diesel specialist and he said that for sure I have stuffed the IP and need to have it fixed for $2k+ and might as well have my injectors replaced while I am at it. I am now looking at a $3k bill and have to wait 3 weeks just to get in and have it fixed :-(.
Thinking back now, I have kind of felt for a while that the car was not pulling as strong as it used to, but was kind of not sure as it was probably a gradual loss. But it seems that it may have started a while ago, however only became severe in the last week or so.
Is it likely that I have stuffed up my IP? What do they need to do with it? Can a general mechaninc deal with this or should I take it to a diesel specialist? Is there something I could do?
In terms of wvo, when I get the oil home, I let it sit several weeks in the containers, then poor the clean oil over a green bag. Then let it sit again. Then pump it through a 5 u filter bag and then put it through my up flow system made of 3 barrels. The last barrel is the one I use for my fuel and also dry the oil in this one. I use an idea from Dave Jones for drying and just run the hose back to the barrel while the pump is running so that it all bubbles (thanks Dave!). Then I run a hair dryer over the bubbling oil to replace the air in the barrel with drier air. I do this for about 2 hours. To be honest I am not completely happy with my drying - I always thought that I will need to work on this more. But so far things looked ok.
My oil seems fairly nice when filling the car, so I am not sure what I have done wrong. I have however observed that a greasy gray material seems to deposit in the filter and in some places. So I am wondering if my IP is basically has got the same stuff in it and may just need a clean?
Any ideas are very much appreciated as I am getting very desperate. As you can tell I am not very mechanical with an engine although I have done my own conversion and spare tank set up etc.
Thanks for any help!
I have got a 3rd generation (1996) Hilux Surf, that I have converted to wvo over 1 and half years ago and have done about 22000 Kms since. I have got a dual tank set up and so far everything was running well.
I am using a delphi filter for the vegie oil and usually change it after about 3000 kms. Occasionally after switching over from diesel the engine light may come on, which is kind of indicating that I need to change the delphi filter. I switch back to diesel for like 30 secs in this case to let the oil warm up in the filter now that it had a splash of hot oil enter into the filter. Then after a short while it starts running through the filter and all is fine. In the next few days I take the first opportunity to change the filter. When I change it, it goes back to normal then I have another 2-5000km before the next filter.
About a week ago the engine light started to come on again. I switched to diesel, but the light seems to have come back even on diesel and the car still had less than normal power. I thought that it was strange and changed the delphi veg filter the next day. However, things did not improve. Over the next day or so the car started to struggle when going uphill, so I thought something more serious was going on, hoping that it was not the IP.
I have then extracted the error code out of the computer, and had an error 14, which says this:
The fault code 14 is for "Timing Control System Malfunction"
This indicates a problem with one of these systems:
-Open or short in timing control valve circuit
-Fuel Filter (clogging)
-Fuel (Freezing, Air in)
-Injection Pump (internal pressure and timing control valve)
-Engine ECU
Also, found this article:
I have a problem with an 03 hilux with a 1KZ-TE ... - JustAnswer
So, to be sure, I have changed the diesel filter as well and found that it was quite dirty. I have not put veg oil into my diesel tank apart from 2 or 3 occasions when on a long trip. I have done this to be prudent so that the filter problem is eliminated on both tanks now.
I have considered that maybe I am getting some air in the fuel. If that is the case then this must be happening after the Pollack valve as it happens on both circuits. I have got rid of the pollack valve and connected the IP hose to the diesel filter directly.
The interesting point was that every time I did something, things became worse. Initially, the car was struggling above 3000RPM. When I changed the diesel filter, the car was struggling above 2000RPM. After removing the Pollack from the equation now I can't even get much up above 1000 RPM.
Next suspicion is the IP or the timing control circuit valve. I have now visited a diesel specialist and he said that for sure I have stuffed the IP and need to have it fixed for $2k+ and might as well have my injectors replaced while I am at it. I am now looking at a $3k bill and have to wait 3 weeks just to get in and have it fixed :-(.
Thinking back now, I have kind of felt for a while that the car was not pulling as strong as it used to, but was kind of not sure as it was probably a gradual loss. But it seems that it may have started a while ago, however only became severe in the last week or so.
Is it likely that I have stuffed up my IP? What do they need to do with it? Can a general mechaninc deal with this or should I take it to a diesel specialist? Is there something I could do?
In terms of wvo, when I get the oil home, I let it sit several weeks in the containers, then poor the clean oil over a green bag. Then let it sit again. Then pump it through a 5 u filter bag and then put it through my up flow system made of 3 barrels. The last barrel is the one I use for my fuel and also dry the oil in this one. I use an idea from Dave Jones for drying and just run the hose back to the barrel while the pump is running so that it all bubbles (thanks Dave!). Then I run a hair dryer over the bubbling oil to replace the air in the barrel with drier air. I do this for about 2 hours. To be honest I am not completely happy with my drying - I always thought that I will need to work on this more. But so far things looked ok.
My oil seems fairly nice when filling the car, so I am not sure what I have done wrong. I have however observed that a greasy gray material seems to deposit in the filter and in some places. So I am wondering if my IP is basically has got the same stuff in it and may just need a clean?
Any ideas are very much appreciated as I am getting very desperate. As you can tell I am not very mechanical with an engine although I have done my own conversion and spare tank set up etc.
Thanks for any help!
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