2003 Volkswagen Polo Repair Question
Asked on November 25, 2012
Volkswagen Polo Spark Problem
Vw polo 1.4 petrol will not start . Over the past 3 weeks my sons polo has been difficult to start . The engine turns over fine but it will not fire . To-day i removed each spark plug individually and checked for a spark .They all seemed ok . I also disconnected the fuel line and turned the ignition and the fuel seemed to pump through ok . One thing i have noticed is when turning the ignition to its first position ,so as to activate the fuel pump ,it takes quite a while for the pump to reach its pressure ,about 8 seconds . Could this be the problem . Ps .he has owned the car for 8 months and it has not been touched since ,yesterday when he drove home it was running perfectly smoothly ,no misfiring or anything .
Asked by NalesAnswer
Replied on November 25, 2012
If you are getting spark at the plugs, check for fuel spraying from the injector(s)... place a noid light across the injector harness plug and
look for it to flash while cranking.
http://www.youtube.com/watch?v=YavcgqEMj5Y
If you could still have a fuel pump / pressure problem, so you need to check actual pressure (flow alone does not mean much).
What is your engine code? I would need to look-up specifics.
Timing belt with stripped teeth will cause a no start where you get spark & fuel but no running engine.
It's always a good idea to scan for fault codes stored in the ECM.
Thomas