Jimny stutter

I’m having a similar problem with an 05 vvt. Engine is fine when cool, then when warm suddenly loses power and almost stalls when at a stop, but when revved upto 3000 with no load turns over fine. Engine is very wobbly when problem occurs but to my ear doesn’t sound like a misfire. Changed crank sensor (not cam) with no joy. Sounds like cam sensor and new plugs leads & coil might be next on the list. No relevant engine faults showing up on the fault reader. Is there anything else that could cause an intermittent problem when engine is warm?
I’ll follow this post see if anyone else has more input.
Thanks and good luck Bob!

Get a cheap water sprayer bottle
fill it with cold water and when problem kicks in jump out and spray the crank sensor (behind alternator)
If it springs back to life when sensor is cold buy a new one of good quality

I often wonder about the throttle position sensor (TPS), which is in essence a potentiometer that spends most of its working life moving around. They are often overlooked but give essential feedback to the ECU on the throttle position so that the fueling is correct. If you have any old electronics in your home you know the volume control, which is also a potentiometer, often fails such that the volume control stops being linear ie. flat spots.
They are cheap enough but very don't get changed that often.
I am not say this is the cause of your problem, but it may be worth checking (or replacing) as a very last resort.
Interested in what corrects this problem, always difficult to be accurate with intermittent faults.
Mike

I don't think a g13bb has a crank sensor? I can't find anything behind the alternator

Kreidler wrote: I don't think a g13bb has a crank sensor? I can't find anything behind the alternator

I was replying to partho00 with the vvt

The tps gives a steady output and when turned it gives no stutter like you describe, I however do not know the exact resistance values it should be. I measured this in cold condition though