1HDFTE 5sp Auto - not shifting into 5th or lockup in 4th

[CustomTurbos]

Hi, the FTE conversion has been completed and I have been driving it around for a while. I am very impressed by the refinement and the performance. It really doesnt feel like it has lost anything to the V8 and teh auto shifts superbly. Engine oil stays clean too and exhaust doesnt smell like an older style but good condition diesel either.....

But, doesnt do 5th or lockup.

Does anyone know about ecu inputs that might cause this to happen (like limp mode?). I am taking a stab at it.

Tonight/tomorrow night I will put a meter on the wires that fire the 5th gear solenoids to see what is heppening.

Now, the main solenoid plug was not pulled down properly before (would only shift manually at that stage) and after pulling it down it shifts fine (with problems mentioned).

IF the plug isnt pulled down when you connect the battery, is there a check function in the ecu that causes it to think "no 5th or lockup available" "dont run lockup or 5th"??

Initially the box oil level was low. 2 litres of oil fixed that but I hope no damage to the box.....

Cheers, Graeme

[oldmate]

At a guess - temperature sender. Some are designed to not lock up or go into overdrive when the engine is cold.

[CustomTurbos]

OK, problem solved.

A few days ago I wasnt happy to have power reduce when going around a tight corner, so I disabled both traction control and vehicle stability control from the ecu. I was hoping this might solve the auto changing issue too - it didnt.

I then fiddled with the plug on the box that fires the gear change and lockup solenoids. This got me changing gears automatically whcih it disnt do before, but no 5th or lockup.

I had a long think about it, considered a few persons thoughts but decided that the ecu might need to be reset in it's "new" configuration (ie: gerabox plug in, vsc and trc off). Well, I was right!

Last night I rest the ecu and low and behold it all works perfectly. I have done 120kms now, half towing a 3.5T Bushtracker caravan and its fine!!!

Also picked up some HP, seems the ecu was limiting it a bit.

For the 60km's I did with the van last night, I was eager to check fuel economy. I averaged 7.1km/L for the 60kms travelling at 90-95 and quite a few stop starts. Will need a reall run to get accurate figures but all indications are that it uses just under half what the V8 petrol used in the same circumstances.