Page 1 of 1
My 1hdfte conversion question.? low power
Posted: Tue Feb 12, 2008 9:47 am
by mud4b
was talking to someone today who done the conversion and seemed to have the same problem as i am having.... LESS power than my 1hd-t.
it is like the engine is in limp mode.
he said there is 2 gearbox switches (cant really remember i think reverse and neutral) that limit the 150 kw / fuel flow of the injector pumpso it does not blow the gearbox. he had a electrician hook these up and bang it had the balls..
i do remember seeing these in the loom and thought nar i dont need them, so i never hooked them up. has anyone heard of these on the 1hd-fte from a 79 series. its now in my 80 series.
cheers mark
Posted: Tue Feb 12, 2008 2:28 pm
by known 2
u probly allready know but the 1hdfte out og a 79 sereis only has 122kw. wich aint much more than ur 1hdt.
so unless u intercool it and chip it wouldn't expect masive gains in performance.
Posted: Tue Feb 12, 2008 5:15 pm
by dow50r
The book i sent you should mention if the two wires have continuity in first or if they are seperated in first....from other places on the transfer where the same switch is employed, the boxes internals will push the contacts together in first to give continuity....so if you have them joined together, disconnect them, and you will get a power up.
Andrew
Posted: Tue Feb 12, 2008 11:53 pm
by mud4b
known 2 wrote:u probly allready know but the 1hdfte out og a 79 sereis only has 122kw. wich aint much more than ur 1hdt.
so unless u intercool it and chip it wouldn't expect masive gains in performance.
sorry i didn't know that. i have a water to air cooler and getting a chip soon but there is seriously a lack of power, it doesn't even come close to my old worn out engine ever... it is the switch im sure as i was told by a reputable diesel shop it limits fuel flow so as to not blow the gearbox in first and reverse..
cheers mark
Posted: Tue Feb 12, 2008 11:57 pm
by mud4b
dow50r wrote:The book i sent you should mention if the two wires have continuity in first or if they are seperated in first....from other places on the transfer where the same switch is employed, the boxes internals will push the contacts together in first to give continuity....so if you have them joined together, disconnect them, and you will get a power up.
Andrew
im sure it will andrew, will look tomorrow for sure, i do not have these wires hooked up right now.
i know that in first and reverse it has 12v but in any other gear they measure 0 to 0.3 volts.. ill try hook them up tomorrow.
other than that the tacho is not working but i really cant see that doing anything as in picking up a signal for a input..other than that everything but throttle position was fine on the diag scan tool. accell pedal is at 90% max push.. if i grab the wire from the spin on the pedal and pull it a inch i get 98%...
cheers mark
Posted: Wed Feb 13, 2008 8:50 am
by hdj105
mud4b wrote:it is the switch im sure as i was told by a reputable diesel shop it limits fuel flow so as to not blow the gearbox in first and reverse..
cheers mark
I explained it all in your previous thread
Posted: Wed Feb 13, 2008 8:51 am
by hdj105
mud4b wrote: accell pedal is at 90% max push.. if i grab the wire from the spin on the pedal and pull it a inch i get 98%...
cheers mark
Well that aint gonna help either, ECU's not going to know you're asking for full throttle.
Posted: Wed Feb 13, 2008 8:59 am
by mud4b
hdj105 wrote:mud4b wrote:it is the switch im sure as i was told by a reputable diesel shop it limits fuel flow so as to not blow the gearbox in first and reverse..
cheers mark
I explained it all in your previous thread
i seem to remember that, ill go back and have a look.
cheers mark
Posted: Wed Feb 13, 2008 9:00 am
by mud4b
hdj105 wrote:mud4b wrote: accell pedal is at 90% max push.. if i grab the wire from the spin on the pedal and pull it a inch i get 98%...
cheers mark
Well that aint gonna help either, ECU's not going to know you're asking for full throttle.
there is no way to adjust it that i can see, for the inch of pull on the cable it only moves the spindal around 4mm..
cheers mark
Posted: Thu Feb 14, 2008 1:49 pm
by mud4b
hdj105 wrote:mud4b wrote:it is the switch im sure as i was told by a reputable diesel shop it limits fuel flow so as to not blow the gearbox in first and reverse..
cheers mark
I explained it all in your previous thread
just done a search under mud4b and in toyota... it came up with no mention of this switch...
can you remember if it was my post or someone else's..
cheers mark