2015 VW/Seat 1.2 cyl non turbo - common issues?

[BlueComet]

Hi all,

Are there any common issues with the 1.2 3cyl non turbo engines? Circa 2015

Asking on behalf of someone else who is having issues diagnosing an engine check light and lumpy running. Oxygen sensor replaced but with no success. One garage says it's a burnt valve and the other says failed injectors.

Many thanks

Matt

[catso]

My Son has a Polo with the 3 cyl, 1.2 and has had a couple of coilpack failures, initially intermittent until total failure, definitely lumpy running especially when only on 2 cylinders.

The first time it also took out the engine management fuse and wouldn't run at all.

[shtu]

BlueComet said:

engine check light

What are the code(s) returned?

BlueComet said:

lumpy running. Oxygen sensor replaced but with no success. One garage says it's a burnt valve and the other says failed injectors.

If your friend is paying actual money to either garage they need to consider stopping that. Both those "guessed" faults are easy to diagnose without throwing parts at it.

[BlueComet]

shtu said:

If your friend is paying actual money to either garage they need to consider stopping that. Both those "guessed" faults are easy to diagnose without throwing parts at it.

Hi Shtu

Thanks for the reply I will get the codes soon

Does anyone have any recommendations for a VAG specialist in Hampshire/Southampton?

Many thanks

Matt

[BlueComet]

Hi Shtu,

First reading - misfire on cyl 1,2,3




Gave it a bit of revs and the roughness cleared. Cleared the fault code and repeated. After a few more attempts revving the fault code came back but just on cyl 1



[url|https://thumbsnap.com/PTTuRnsh[/url]

Went out on a test drive and all running okay, until I planted my foot and EPC and engine warning light came on - car in limp home mode

Turned it off and restarted. Epc and engine light not illuminated. Was able to accelerate hard maybe 5 times before the EPC and engine management light came on again.

The car felt fine when the EPC and engine management light weren't on - pretty slow but it is a 1.2 70bhp engine with tall gearing. No odd noises or anything rough.

Edited by BlueComet on Saturday 24th October 15:59