peugeot 206 1.4 feels sluggish

[MARKS6900]

Hi, car was running fine yesterday but today it felt as if it was only running on 3 cylinders, took it to the local garage who plugged there lap top into it, it came up as number 3 injector not working, so they took of the injector rail and cranked it over, number 3 was working but number 1 was not so they replaced it, car runs fine at idle but as you accelerate it seems to be sluggish, i have rechecked all the parts he touched but no difference, any ideas, thank you.

[Old Merc]

Could be they have changed the wrong injector?? or have not rectified the fault in the wiring that caused the injector to stop working??
Take it back,you paid the guy to fix a fault and its still faulty.

[CEmm]

Could be the coilpack, they go a lot on these engines.

Also, when were the spark plugs last changed?

Any engine warning lights/codes?

[MARKS6900]

Hi replace spark plus, job done, runs perfect now, thanks.

[Old Merc]

That`s the problem these days,cars full of ECU`s,electronics,fault codes etc etc,the most simple elementary items get ignored.
I would go back to the garage that changed the injector and charged you (how much?) have a "quiet" word.I think you deserve a refund?