UK-POLOS.NET - THE VW Polo Forum

hey guys, hope you all had a good christmas

I'm just need abit of assistance, my polo's missifiring

i recently serviced her, oil/fuel/air/rotor/dizzy cap
she ticks over fine, but there is a intermitent misfire/hessitation not sure if its the service or weather its a coinsidence thats the problem happen at a simular time

Seems to get worse whens shes up to tempreature

I've checked the fuel fitlers on the right way around, both pipes are clamped on tight

I've changed all the leads and plugs

also found a fuel pipe clamp missing from the sender, so replaced this,

checked the firing order/ lead positons on the cap, all okay,

so I'm a bit stumped, anyone else got any common faults or ideas that I've missed?

there was also some oil residue around the air box seal? and dint seem a great deal of vacume when i took the induction pipe off and covered it over, suggesting shes sucking air from else where? just i can see any ovious perishing or splits etc

also fitted a new temp senor, mines a 4 pin one witha yellowish ring? not the blue one like most vw?

tried various MAP sensors, still no luck

the 3 fault codes on there are

00533 idle speed regualtion

00519 intake manifold preasure sensor

00522 coolant temp sender

many thanks in advanced,

danny

Ive continuity checked all the senosrs to the ecu and there all puka

any one got any ideas?

cheers

if you havent already, clean the throttlebody out with a suitable carb/injection cleaner thoroughly.

the manifolds nice and clean mate

cheers