code 56

[beyond custom]

Hi guys new here, I have done many conversions with the 1uzfe and never had issues till this one. I have done many search's and some one mentioned on here code 56 was hydrolic fluid fan level?? is this the actual fault? cause can not see any actual answers that seem surtain? Ok not sure if you guys have done this, but if you reset the computer then start it, it will rev fine for a few seconds, till ecu detects something as code 56 then starts to limit the engine and check light comes on... so has to be a factor telling the computer there is a proplem...

any help would be greatly appreciated, and any mod to loom, or voltage to apply to a surtain pin etc I can do??

leon.

[sideshow]

does it have a 2500 rpm limit
i had this prob on aconverison i wired up

took me 2 days to find what caused it was so annoying lost soo much money on it

if u send me loom i can see if its been wired up wrong

i do not know of any one in country that know the cure so sorry can not give any info out

[beyond custom]

I have access to a celcior tomorrow, so ill go through it and supply answers, to any that may need it in the future then..

leon.

[beyond custom]

for people that may view, the celsior computer 4th plug, trans plug that holds batt wire (black/yellow stripe) ( plug that is up side down and away from the other 3) the large blue wire which is pin 1 that is not in the Ls400 lexus diagram, this wire needs to be grounded, if you are not usuing hydrolic fan, as is the level inticator in filler bottle. if not connected, gives code 56 and will not let car rev...


leon.

[ChrisGT]

Originally Posted by beyond custom

the large blue wire

Can anyone confirm this wire solves the problem?

[ExcessFC]

Bump, This problem is driving me insane. I believe I have a UCF20 ECU, and I am currently fighting with a code 31 and a code 56. It throws these codes before it even starts. I know the 31 is the MAF, I have a second one on the way. Any info on the 56 would be great.