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x2 or check the wiring....
Mine 2 days ago (which at idle i thesame as n/a)
It was runnign rich even at cruising speed...
it was a wire at the vaf that was corroding, well on the harness.
I dont remember my kl36 tho maing my car run rich.. why do you guys say its rich? its smoking?
on my wideband ...

Hi
I've same mixture rich problem with je50 vaf and kl31/kl36 ecu, I think problem could be
vaf, i found signal of 1.8 volt at idle, service manual for k8 1.8 liters is 2.5volts.
I don't found any reference info for 2.5 liters.
My next step is run car on bench and mapping ecu at reasonable mixture ...

Hi
what's voltage value for je50 vaf and kl31 ecu (2.5 liters engine) at rest and idle ?

thanks a lot

Could be 112 mph speed limit for kl31/36 ecu ?
And do you know rev limiter ?

thanks

From my experience, je50 vaf and ecu for 1.8 k8 engine not mach
mixture is too much rich end absolutely no power get out
anyway i've dubt for vaf efficency but kl31/kl36 ecu with same je50 vaf
is quite better that previous configuration
now mixture is a bit rich in low and med range but 10.8 at high ...

Could you know what is spec power for 2.5 jspec engine ?
More than 200hp or 160hp?

Ecu for jspec engine could be kl36 ?
Are there speed limiter for this ecu ?

I've got vaf j50 - 1972050060, I assumme is right part for ke engine jap spec, anyway
voltage signal of 1.8 volts at idle is incorrect, so I think vaf is done !!
I belive to need a new vaf and then also a right ecu kl31 or kl36

Hoping to go in the correct way , thanks for all

Yep, I agree with your suggestion, but k8 vaf with jap ecu and 2.5 jap engine has restrictive diameter
as I know, I would get all ori parts for jap kl engine and then start with tuning activities

Thank you for your support, I know vaf for k8 is different for kl , I've got kl installed, but i've no service manual
for kl jap engine, so I found a idle value of 1.8 volt from vaf, sm notices around 2.5volt same engine condition
Mixture is obviously rich, my dubt is vaf failure
Considering I've ...

I found a value of 1.8 volt from maf signal, service manual for k8 engine notice 2.5v at idle
as you know maf of kl engine has same signal of k8 ?

thanks

Nd4SpdSe wrote:JE50 VAF
KL31 or KL36 ECU

thank you for info asap i'll check
maf type and i'm looking for
right ecu

Hello
could you help me to get some info as follow

Engine 2.5 v6 jap spec, what's code for maf and ecu ?
Again I've got ecu kl38 installed without original eprom, where
can I get ori.bin ?

Thank you for support, hoping I can close my project

Cheers