Volkswagen Polo surging tick over and irratic missfire and hesitation throughout revs
Variant: 1.4 CL
Model Year: 1996
Categories:
Running Rough, Starting & Power Loss
Hello all. My 1996 1.4 polo recently developed a surging in the reves and iratic misfire at tick over that has now progressed into hesitation and random missing whilst accelerating and also cruising.The car has always been well maintained and done less than 100k. So far i have replaced the plugs,leads, cap,roto arm, head gasket with complete top end rebuild including skim and exhaust guides, lambda sensor and a tank of Cata-Clean fuel system cleaner. Adjusting the distributor timing makes little overall difference. Seems to be running rich but possibly due to unburnt fuel. It runs smooth and is nice and lively on the odd occasion when not miss-firing.
As you can tell it is now beginning to drive me to dispare. Any help or advice will be most appreciated. cheers, jason
As you can tell it is now beginning to drive me to dispare. Any help or advice will be most appreciated. cheers, jason
Posted: Oct 20, 2010 (14 years ago)
Check this out , might help you .
http://www.honestjohn.co.uk/forum/post/index.htm?t=57593
http://www.honestjohn.co.uk/forum/post/index.htm?t=57593
Posted Oct 20, 2010 (14 years ago)
Thanks for the link. I have found a number of references to cleaning the throttle body so will give it a try. cheers
Posted Oct 20, 2010 (14 years ago)
Glad to help ,could also check all vacuum pipes / hoses and engine breathers .
Posted Oct 21, 2010 (14 years ago)
Hiya Jason.
Please, please, please let me know how you get on with your problem and if you find a solution because i am in the exact same situation.
Have been to 3 separate garages now and they are all scratching their heads, in fact they have made the problem worse, not better as its constantly missing now.
Cant believe there is so many threads on this problem, but never any solution.
Thanks
Please, please, please let me know how you get on with your problem and if you find a solution because i am in the exact same situation.
Have been to 3 separate garages now and they are all scratching their heads, in fact they have made the problem worse, not better as its constantly missing now.
Cant believe there is so many threads on this problem, but never any solution.
Thanks
Posted Oct 28, 2010 (14 years ago)
as you have done all you can with sparkplugs, distributor and cables, may i suggest a faulty lambda sensor
see http://uk-mkivs.net/forums/t/160055.aspx
http://cgi.ebay.co.uk/VW-Passat-Polo-LAMBDA-SENSOR-BOSCH-/250717529222?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3a5fede486#ht_1767wt_871
not too difficult i hope and not too expensive i had a similar problem with a 1.6 persistent engine fault.
see http://uk-mkivs.net/forums/t/160055.aspx
http://cgi.ebay.co.uk/VW-Passat-Polo-LAMBDA-SENSOR-BOSCH-/250717529222?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3a5fede486#ht_1767wt_871
not too difficult i hope and not too expensive i had a similar problem with a 1.6 persistent engine fault.
Posted Dec 6, 2010 (14 years ago)
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