[Tuning Haus]

this is for a 93 land cruiser...

i cannot believe NO ONE has a printed diagram of our ECU pinout???

i'm trying to install a piggy back fuel controller to play with my a/f mixture during idle and cruise. i have a hks s-afr hoping i can use it with success to get better gas mileage

i've located the ECU, but i need to know where the:

air flow pressure signal (mass air flow sensor) wire
throttle position sensor wire
rpm signal
ecu ground wire


thanks for any help

[Tuning Haus]

i am talking about the COMPUTER TERMINALS like these


MKIV.COM

[jlbuk]

all these are easily found at source, so if the colour coding of the cable stays the same throught it's length, you could easily verify that it is indeed the same wire at the ECU by continuity check ?

[semlin]

Originally Posted by Tuning Haus

this is for a 93 land cruiser...

i cannot believe NO ONE has a printed diagram of our ECU pinout???

i'm trying to install a piggy back fuel controller to play with my a/f mixture during idle and cruise. i have a hks s-afr hoping i can use it with success to get better gas mileage

i've located the ECU, but i need to know where the:

air flow pressure signal (mass air flow sensor) wire
throttle position sensor wire
rpm signal
ecu ground wire


thanks for any help

afaik, nobody has really tried to tune a 93 although there has been lots of talk about it.

the 93 does not have a maf it has a vaf. you should read this thread to learn more.

93-94 truck VAF to MAF conversion project

the factory electrical manual is what you need but i think even the fsm has most of that information you want if you hunt around.

[Tuning Haus]

bump...

i have to say i'm kind of disappointed and surprised that out of all the experienced landcruiser die hard fans, i can't get anyone that knows the PINs on the ecu...

i just need to know

ignition
the mass air flow signal wire
rpm
throttle position

i believe that's it...

anyway, hopefully someone who knows comes across this post..

thanks again

[semlin]

Originally Posted by Tuning Haus

bump...

i have to say i'm kind of disappointed and surprised that out of all the experienced landcruiser die hard fans, i can't get anyone that knows the PINs on the ecu...

i just need to know

ignition
the mass air flow signal wire
rpm
throttle position

i believe that's it...

anyway, hopefully someone who knows comes across this post..

thanks again

these are heavy trucks, not sports cars. with the exception of the vaf/maf conversion and upgrade projects, no one has really had much impetus to start messing with the air flow, ecus and tuning, especially on the 93/94s since they have no obd2 or maf. supercharger experience has shown that the 93-94 vaf does not seem to be able to handle greater airflow which is why we were looking at retrofitting a maf. i am interested to see how you make out and the link i provided has a number of potentially helpful diagrams.

[retrofive]

Isn't that info covered in FSM/EWD?