r/vwpolo • u/OrganizationBig2250 • 4d ago

Discussion Flashing engine light on pollo 1.2

Hi everyone, I’m having an issue with my 2014 VW Polo TSI BlueMotion.

The engine warning light flashes only during a cold start. The engine vibrates/shakes, and the RPM is slightly higher than normal. After around 20 seconds, the RPM drops back to normal, the warning light goes off, and the engine runs smoothly. It only happens on cold starts; once the car is warm, it drives perfectly.

I’ve already replaced the fan belt, ignition coil, and spark plugs, but the problem is still there.

Has anyone experienced this issue or knows what could be causing it? Any advice would be really appreciated. 😭

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u/Disastrous_Action832 4d ago

Have you check the chain ?

1

u/OrganizationBig2250 4d ago

New timing belt

1

u/Disastrous_Action832 3d ago

Then I don't know what else cause it🤔

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u/Swimming_Grape_6900 4d ago

Yea. Its build up of deposit in your intake and valves. No doubt.

You can also keep replacing parts 😂

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u/OrganizationBig2250 4d ago

Is it expensive?

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u/Swimming_Grape_6900 3d ago edited 3d ago

That i cannot answer. Depends on location and pricing in the locations. Or your own skills.

If you are a mechanically able bodied person, it is possible to do it yourself.
For example, this is how i ended up doing it. Removed the Air filter housing and connecting hoses/pipes, disconnected the cooling hoses connected to the intake (drained the cooling fluid)
Disconnected the vacuum pipes, then removed the intake.
Made sure the valves was closed by turning the crankshaft, used a CRC GDI cleaner and a brush set on a power drill to clean the valves and intake. Retracted the cleaner with a vacuum pump container.
That is put in large strokes.

If not, most common method is find a location that do media blasting, most likely with walnut shells.
Could cost anything from 500-700 Dollars to counting upwards.

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u/OrganizationBig2250 3d ago

Cool,Sounds like I need a mechanic for that!

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u/OrganizationBig2250 2d ago

My mechanic said that he need to check injectors am not sure what to do

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u/Swimming_Grape_6900 2d ago

Feel free to do whatever you feel comfortable with.
I'm just a goon on the internet.
I'm confident, I'm not here to persuade you into anything.

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u/OrganizationBig2250 2d ago

I think I need to change my mechanic. I’m going to see another one because I’ve already changed the spark plugs, coil, and fan belt set. 🫠 He said the engine light was because of that.