My focus is lacking power and rattling when u pull away iv change the iscv and the tps will the vss make it lose power if its not working right and do you have to let the ecu reset when iv put new sensors on even tho iv not had any lights on or got any on

 

Any one any ideas at all

 

No offence mate, but you can't expect an answer like this. You need to be more clear, use full stops, question marks etc... because its hard to understand your question. Also provide details about your car like, is it a 1.6 petrol or 1.8 diesel? what year and model it is etc.

Good luck,
Jules