2001 Jimny Intermittent Misfire

Update, Last night engine started cutting out again and long enough to get a fault code. P 105 MAP/BARO CIRCUT MALFUNCTION. I take it this is map sensor on the inlet manifold. or could be throttle position sensor
www.obd-codes.com/p0105

Changed map sensor and no joy.

Apologies if you have done this already but have you gone back to basics and checked compression/valve settings also the plugs??
Leaving aside electronics and sensors if this was an older car I would suspect valves/compression/plugs/timing etc.
As you say you are only getting the symptoms at speed or when the engine is hot.
The red hot exhaust sounds like weak mixture and/or timing??
My train of thought is that as the timing changes and the engine gets hotter a valve may be being kept open due to expansion /close tolerances allowing the compression and hot gases to escape down the exhaust. The sensors are trying to compensate but come up with a weak mixture??

gilburton wrote: Apologies if you have done this already but have you gone back to basics and checked compression/valve settings also the plugs??
Leaving aside electronics and sensors if this was an older car I would suspect valves/compression/plugs/timing etc.
As you say you are only getting the symptoms at speed or when the engine is hot.
The red hot exhaust sounds like weak mixture and/or timing??
My train of thought is that as the timing changes and the engine gets hotter a valve may be being kept open due to expansion /close tolerances allowing the compression and hot gases to escape down the exhaust. The sensors are trying to compensate but come up with a weak mixture??

Cheers Bud.
Had new plugs but haven't checked compression/valve settings yet it is a question of where do you start and when do you give up considering the vehicle age. Got me beet. :sick:

Well it doesn't cost anything to check valve clearances and if you can get hold of a compression tester once the valves are checked a worn valve will show up.
Has your fuel consumption suffered??

gilburton wrote: Well it doesn't cost anything to check valve clearances and if you can get hold of a compression tester once the valves are checked a worn valve will show up.
Has your fuel consumption suffered??

Fuel consumption same as usual 26 -30 mpg.