1uz auto problem

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cobra1

New Member
i have a 91 ls400 fitted in a cobra, we used the complete wiring harness from the car with mods by an autolec to delete unused circuits, the transmission changes up through gears perfect but will not down change apart from being done manually ,also no kick down or cruise operation ,all circuits seem to test ok , any help greatly appreciated..
 
i bet yr auto elect didnt hook up the kd switch
what do u mean cruise operation
crusie control or car wont actually cruise along smoothly
 
there are afew things involved with cruise to work
there needs to be about 3 things all set for it to turn on

maybe get him to double check it
did u just fit the complete harness form the doner car or strip loom down and only use what is needed
there are pros and cons on doing it either way

anyway with the auto does it change gears going up very fast
or at normal speed as u could have a speed signal prob
2 main things which might stop kicking down
one is speed signal tooo fast
or tps signal prob
apart from that it could be a million things so just get auto eklect to go over his work

end of the day if u paid to get it done then get them to solve it
thats what i have to bloody do heheheheheh
 
hi, the harness was stripped of wires not needed (elect mirrors a/c etc)mainly all accessories not needed in the cobra, i am using autometer gauges & the speedo has been set so i assume there should be a speed signal from the gauge. i noticed yesterday when i drove it after manual changing from D to 2nd as you come to a stop it will change into low , can you tell me what voltage the tps should be set at ?thanks again for your help..
 
tps is .5 or .6 volts at idle and up to 4volts at full throttle but don t go adjusting it if its close
the throttle adjustments should never be touched on the 1uz

the autos are shitttt
they are made for luxury cars and sometimes the gear change is so smooth
u barely feel the change

anyway the cruise is too hard to expalin on here
plus i dont have 10 hours spare time to go thru it

get yr auto elect to redo it or bring car down to me :)
 


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