K3-vet low power when wet and cold


#1

Hi there,i have a yrv 1.3 k3-vet.
apart from making a lot of noise in low rpm it has problems after start in cold or damp weather.
like it has no power…? when u press only a bit on the gas-pedal…(whn u press pedal bit more it revs up)
after running 20 seconds this is gone.
no fault codes,new spark plugs …
i am thinking for the map sensor but where is that located?
does someone have a photo of the location.
Thx


#2

hmmmmm it’s not the gearbox is it mate?
I had one that slipped a lot until it warmed up a lot
especially in reverse


#3

No, it’s not slipping. Doesn’t want to make revs when u press pedal only a bit.so when you normally accelerate it feels like stalling. Like it’s having no horsepower. When you fully press pedal it jumps to high revs. As soon as u been driving for 500 meter this is gone…


#4

So is when on cold start :thinking:
Oxygen sensor?
Have you looked up faults with an obd scanner ?


#5

No faults in memory. So i was thinking about the map sensor. When this is bad, in cold or damp conditions it gives these symptoms. But i don’t know where it’s located. Is it on the intake manifold? Cannot find it on photo of K3-VET


#6

Check fuel pressure.
Filters if clogged really restrict flow when cold


#7

Thx. Where is fuel filter?


#8

filter is in the tank with pump
map is right on top of intake throttle


#9

Thx… Mate