my 3.0 td engine check light nightmare

[hallyl01]

hi i have a 3.0td surf and was running it on fully cleaned and filtered bio diesel for approx six months, then whilst driving it lost power and engine check light came on, it still starts drives fine but wont go over 3000 rpm or 40 mph. There is no smoke of any colour when driving, but when throtle is held for about 10 sec at 1500-2000 in park it runs lumpy and white smoke comes out of exhaust, but not when driving. Here is a list of things ive tried to solve this. The day the fault started it ran out of fuel but topped up and it started fine and i drove about 20 miles before fault came on.

Drained fuel, blown lines back to tank, new fuel filter, cleaned little filter on pump (allthough it wasnt dirty at all) and filled with fresh white derv.

tried running from a fuel can under bonnet but still ran the same

done the paper clip diagnostic test and i get as follows 1 1111 1 1111 1 1111 and so on with over drive light flashing so i guess this is fault code 14? is this correct?

disconnected batteries overnight but still the same fault

it runs the same on bio as it does on white derv with no difference

tried running without hand primer but still the same

new fuel pipes from steel ones up to primer and pump and primer works fine

cracked all injectors whilst ticking over and engine revs drop on every one when opened.

If someone could help or have any suggestions then i would be very gratefull as im new to surf ownership and its a great motor but this isnt helping at all

[Koi]

[Seem to recall a similar post on here a while back, think it was a vacuum hose that had come off/perished

[puddlesurfer]

Where in UK are you? You might be better getting TonyN or one of the experts to look at it.

[hallyl01]

hi i live in the north east in durham thanks for reply but as for the vacum pipes bein perished does anybody know which pipes or should i check all??? its p***ing me off so much im contemplating putting it into toyota to fix it

[NiftyNev]

Code 14 suggests Timer Control Valve or ECU problem but check the timing belt first.

Nev

[hallyl01]

hi nev thanks for reply and in checking the timing belt what shall i check for? condition and timing?

[hallyl01]

or is there anybody near me in durham that could take a look and is cheap?

[NiftyNev]

hi nev thanks for reply and in checking the timing belt what shall i check for? condition and timing?

Check the condition of the belt and the that all timing marks are aligned. Should be info on here about the timing. If not then download the 1KZ-TE engine manual. Do you know when the timing belt was last changed. If not then replace it.

Links to manual.

http://daemon4x4.org/tech/hiluxsurf/info/

Nev

[hallyl01]

i was told wen i bought it it had just been done its showing just over 100,000 kms i will check that today and have a look a timing and report back thanks

[hallyl01]

didnt have time to check timing yesturday so will get that done today i will also check every vacuum hose if this doesnt solve it is there anything else or anyone in my area who could take a look for me???

[TonyN]

If you've done everything else then it must be the timer control valve, seeing as thats what the ECU is telling you its not happy with...

Its on the bottom of the pump, facing backward, not sure if you can change it without removing the pump, not tried before. I'd try that next, the only other thing to try is to see if someone will lend you a good ECU to make sure it nots that thats giving duff signals.

[hallyl01]

cant find any pipes off so timer control valve is next, does any one have one forsale and do the 2.4 models have the same part?

[Albannach]

I'm sure I cured a TCV problem by changing the TPS, have you checked that?

[TonyN]

I'm sure I cured a TCV problem by changing the TPS, have you checked that?

You did, I forgot that, check that too.

[hallyl01]

im guessing that is throttle position sensor where is it and how do you check it? again is it the same on a 2.4 i only keep asking as a local breaker yard has 2 2.4 jeeps so i can get parts easy