Hi all,
I've come from HPOC as I've put a 1KZ-TE which I bought from Bushwacker into my LN105 Hilux Pickup.
Thing is there's only one other truck with the TE conversion on there so they don't know much about the engine.
The conversion went well, generally, and it started on the first try which is always good when doing conversions involving ECU's (I was expecting a lot of turning over, head scratching, and wire fiddling before it finally fired up).
I just have a couple of problems which I can't seem to get my head around.
Cold start is always good, fires straight up.
However, if I just 'flick" the key as I was always used to in my 2.4na, it knocks/shudders violently for a second before it seems to come up to normal idle. If I leave the starter engaged for a few split seconds longer than I normally would, this doesn't really occur.
This problem is much more prominent when up to temperature.
Also, at normal operating temps (doesn't happen when cold) - if I depress the clutch after driving at speed (30mph+) the engine seems to drop below normal idle, shudder, then come back up and idle normally. Takes off fine, doesn't seem to actually affect the normal driving at all. If I drop down the gears so the engine slows down gradually, it doesn't happen either - or is only very slight.
When starting hot, it starts fine and idles normally and this problem doesn't occur until it's driven a bit first.
Can anybody shed any light on what could be the cause of either of the above?
I've tested continuity to make sure the ECU is definitely getting signal from the water temp sensor, but can't get the multimeter probes in easily to test sensor resistance.
Same with crank position sensor, though I could get the meter probes to that one easily.
I tried starting without the crank position sensor plugged in, and it starts exactly the same.
I tried running it without both sensors plugged in (though didn't drive it) and it seems the same. I expected the idle to be rougher without the water temp sensor plugged in. Though idle does seem ever so slightly smoother when it's cold.
Background info, in case any of it makes a difference:
Manual trans, M/T ECU
No 1st gear position switch
Cable driven speedo, so road speed isn't fed into ECU
Any help much appreciated.
Cheers,
Sean
I've come from HPOC as I've put a 1KZ-TE which I bought from Bushwacker into my LN105 Hilux Pickup.
Thing is there's only one other truck with the TE conversion on there so they don't know much about the engine.
The conversion went well, generally, and it started on the first try which is always good when doing conversions involving ECU's (I was expecting a lot of turning over, head scratching, and wire fiddling before it finally fired up).
I just have a couple of problems which I can't seem to get my head around.
Cold start is always good, fires straight up.
However, if I just 'flick" the key as I was always used to in my 2.4na, it knocks/shudders violently for a second before it seems to come up to normal idle. If I leave the starter engaged for a few split seconds longer than I normally would, this doesn't really occur.
This problem is much more prominent when up to temperature.
Also, at normal operating temps (doesn't happen when cold) - if I depress the clutch after driving at speed (30mph+) the engine seems to drop below normal idle, shudder, then come back up and idle normally. Takes off fine, doesn't seem to actually affect the normal driving at all. If I drop down the gears so the engine slows down gradually, it doesn't happen either - or is only very slight.
When starting hot, it starts fine and idles normally and this problem doesn't occur until it's driven a bit first.
Can anybody shed any light on what could be the cause of either of the above?
I've tested continuity to make sure the ECU is definitely getting signal from the water temp sensor, but can't get the multimeter probes in easily to test sensor resistance.
Same with crank position sensor, though I could get the meter probes to that one easily.
I tried starting without the crank position sensor plugged in, and it starts exactly the same.
I tried running it without both sensors plugged in (though didn't drive it) and it seems the same. I expected the idle to be rougher without the water temp sensor plugged in. Though idle does seem ever so slightly smoother when it's cold.
Background info, in case any of it makes a difference:
Manual trans, M/T ECU
No 1st gear position switch
Cable driven speedo, so road speed isn't fed into ECU
Any help much appreciated.
Cheers,
Sean
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