murraym

Hello!
i have a 93 ucf10 lexus here in Australia

it used to go well years ago , but now has poor performance off the mark

280 k

eng compression good

injectors cleaned

valve adjust correct

leads and plugs good

oxy sensors replaced

fuel ecomy good

i tried the resistor trick in the airflow meter , but no good!

it all started after i did a stall test on the converter - after that - years ago - it has Never had quite the same sting !

2nd prob, reoved the tailshaft and gearbox to replace eng. rear seal - tailshaft has had a slight vibration - only on take off - ever since!

i was very carefull to put it back exactly where it was !~

your ideas would be appreciated!

Murray Mules

LScowboyLS

IDEA: a known age related defect in all LS400's which causes poor acceleration, and eventually many other problems

Lavrishevo

iTrader: (1)

Check the rear end bushes. For the second problem.

murraym

Hello out there !

i had a post a few weeks ago about poor acceleration and someone suggested that the caps in the computer need replacing

i took some pics of the inside of the ECU

can someone pls tell me where the caps are that need replacing ??

thankyou ,Murray Mules

python

iTrader: (4)

youre looking at the wrong side of the board

LScowboyLS

the caps are on the reverse side of the board you posted on the right hand side of your post (2nd pic)

there will be 8 caps total, I suggest you read carefully all of the posts in my GUIDE to changing your ECU capacitors

especially post #1 and post #8 and post #11

please be careful with the large flat grey ribbon cables attaching the two boards, they won't tolerate any rough handling and will not be easy to fix if you pull them lose - they will tolerate gentle handling to separate the boards and get them flat for repair however

Shmee

iTrader: (3)

if you did a stall test on the cat and the problems started after that.... have you checked to see if you you didn't melt or partially plug your cat?

cobalt91

I think he means the tourqe converter. I would check the bushings and center support bearing on the driveshaft.