seriously get rid of the car
when they get about 15 to 20 years old the soarers start to play up
suspension steering ecus etc etc they all start failing
they are one of the worst cars Toyota has made when it comes to reliability when they get old and they will cost u a shitload to repair
don't fk with something Toyota has spent 10 years perfecting hehe
manufacturers went to dbw so the ecu has control over the throttle not the person
pushing on the accelerator pedal
deleting dbw is probably a huge job
ecu has a million settings for it so if one is out if will shut throttle down
just save the cash and fit aftermarket ecu
or get a scanner and read data
trying to guess whats wrong is like u trying to guess how long this rope is I have in my hand
ok cool
ive only seen code 42 on the early 1uzs and that wont come on till u drive car for 10 or so kms
so is code 42 purely the speed sensor
or does it relate to other things
im wondering if the customer of mine is having isseus due to code 42
might be worth double checking it
I know the older 1uzs bring up code 12 or 13 if the belt is out one tooth
and the engine feels slightly under powered and retarded
hey George I thought code 42 was missing speed signal from dash
that's y I sometimes put that wire to an injector
I know code 51 is sometimes a start signal problem
but on the older ecus if u had nsw to a ground it would hit a 4000 rpm limit
not sure if vvti ones do the same
hey...
I cant see how code 42 will cause yr problem
if its vvti auto then it will have sp2+-
that tells ecu speed
I recon thereis other problems
ive got a customer with a vvti and it has slight miss as u take off and when cold its not to bad but when it warms up its bad
so im sending him...
does he know 42 is speed sensor not sta or nsw
I had a shop here tel me they tested 1uz trans on their trans dyno
I asked did it get all 4 gears
they said yes
I said did u power anything up
they said no we don't need to
so I laughed at them and said do u realise u will not get any...
also cut both sta and nsw wires
this will make sure it wont go into limp mode due to them wired wrong
then once u get it running good u can connect them back up when u figure out how they go
are they genuine or chinese ***** seen afew new chinese made COP coils fail on the dyno
u just cant go past genuine 2nd hand ls1 coils
just look ugly with the leads
I mean the spd wire from ecu
where have u hooked it up in the car
if u wire the neutral start wires wrong to the ecu
it will have a 4 grand rev limit on some Toyotas
had this afew times on early 1js and 1uzs
could also be air flow meter or wrong igniters
fkt if I know what it has...