Acceleration hesitation, Polo 1.4, 2002, Petrol

[kagaraneon]

Hi guys.

I bought my Polo 3 months ago and it was working fine for the first 2 months.
But now it hesitates when I accelerate from time to time.
Fuel filter was replaced, Air filter (sports) was cleaned.

What else should I do?

[RUM4MO]

Idealy you should use a normal air filter, also if you know how to do it, clean the Throttle Body and run basic settings on it using VCDS or what ever else can do that. Maybe even check the EVR valve port at or near the Throttle Body, run basic settings on the EVR valve and remove and clean the MAP sensor - carefully. Then check your spark plugs and replace if they are very old!

[coopern]

You might also want to read the topic 'Very slight hesitation on reapplying power' from a few months ago.