Loss of power when going up hills ???

when was it last serviced ? new plugs and air filter may help .

also may be worth getting the fuel pump checked

Yes it's on a 2" lift kit with big tires on! It's just got worse and worse? I had a similar problem not so long ago, where the catalytic converter had collapsed inside! But I have replaced that about 2 months ago! And it can't be the cat again plus the power loss isn't as severe as it was when the cat went?? A friend of mind has a diagnostic machine and we have had it pulgged in but it's showing no codes?? I don't know what els to do?
Thanks
Simon

When you driving uphill or have heavy headwind then is the fuel consumption very high I noticed myself.

I drove from the Netherlands to France, Paris and had very much headwind and a lot of hills, my Jimny has reached a top speed of 120/125 km/h. But when I drove back from Paris to the Netherlands I had tailwind. I thought, how fast will my Jimny go now? I reached a top speed of 145/150 km/h.

When you drive above the 100 km/h the fuel consumption is very high, a Jimny is not build for high speed driving but for offroading :woohoo:

I am not a machanic but I have to a lot off trouble with the speed and fuel. That's a Jimny I think. :blink: Or not? Have I to a problem?

Tesco petrol makes a difference. My Grand Vitara hates it!
More noticeable with a diesel. My Citroen Relay and old Renault Master both hated Tescos Derv.
No probs with Shell or BP
Its nasty stuff.

And Esso?

Has it ever had a gas conversion!!