9N old shape Diesel 1.4 3 cylinder - poor starting, suspect injector.

[OliversDad]

Hi, I have a problem with my high milage Polo I can't fathom. I have very poor starting, hot or cold. It's had a new EGR valve and a fuel filter. It's regularly serviced by me and faults fixed as they occur. It will crank for ages when it, finally, fires it runs lumpy, feels like it's running on 2 cylinders. this smooths as it gets warm but "misfires" continue intermittently. At revs over 1200, it smooths out a bit with no real issues under load, I have no obvious loss of power.

I suspect a failing injector. I've had no MIL light and the only faults I've logged are crank speed sensor, I believe from long cranking without firing. Cleared it did not return. I've just bought VCDS, officially, with a license and everything! Believing it's an injector I've logged blocks 13, 18 and 23. a print is attached.

Anybody got any good ideas, I'm stumped.

[Me9141]

Having similar issue, although mine starts fine, it just runs lumpy.

I'm getting the same output (2.99) on cylinder 2, which it my suspected faulty injector. I just wanted to know if people have changed the wiring loom and its solved the issue.

I suspect it will need a new injector.

Mine didn't have the EML light on, its only come on today after a few days of intermittently running rough.

[Me9141]

I cant really see if anyone else has just changed the loom and its solved their issue. The output reading on injector 2 suggests its faulty so I think I'm going to bite the bullet and replace the injector.

Just for reference here are the bits I'm going to order and cost:

1) Injector - currently on offer for£75.89
https://www.ebay.co.uk/itm/176603824119

2) Injector wiring loom, would prefer original or a reputable brand but the cost difference suggests other wise - £15.86
https://www.ebay.co.uk/itm/184588947071

3) Rocker cover gasket - £14.10
https://www.ebay.co.uk/itm/315796447945