I have 352,000km on this vehicle. It is hesitating/backfiring on acceleration. It will stall if I don't release the gas pedal. The engine light is not on. I have had this intermittantly over the last few weeks so I don't think it is fuel releated.
The vehicle will also revert to normal for a few days, before acting up again.

Any thoughts?
Thanks

 

Is the engine misfiring? Ck the map/baro sensor and temp sensor. And ck fuel pressure too.

 

The engine continues to run smoothly. It is when you put a load on the engine that it hesitates and backfires.

The mechanic tells me it is now running fine and he cannot replicate the problem. Because it is an intermittent problem he "suspects" it is related to the fuel pump (which was recently replaced and is still under warranty)

Thanks

 

Fuel filter

 

Thanks, thats what I had replaced. Seems to be OK now. I'll keep my fingers crossed!