@cheeryble
I think I can see a problem in that bill.
8 Honda jazz spark plugs B800, B100 each. I'd guess 'no way'...just my guess.
Trouble is the Jazz has so many sensors that all effect the computer (ECU), that without a scanner (you can buy them cheaply and use a mirror to install the unit under the dash) you are just working blindly.
Story: I usually buy a cheap car for Australian trips.
Last time I bought a Honda Jazz. Had problem, took it to 3 service places...not fixed, so started changing the sensors, then bought a scanner. No fault codes showing up.
Replaced all sensors (except exaust), fuel filter, fuel pump, spark plugs and leads...still problem.
So did other tests and decided it was the ECU.
Bought a second hand ECU, replaced it, all great as probably no service maintenance had been done as well.
Moral [from experience] First step is to get a scanner and look at the fault codes.
My car didn't output any fault codes, because when the fault occurred the car just stopped as the ECU was faulty, no codes.