Hi

Recently getting the flashing coil icon and the P0101 fault code

Changed MAF twice for OEM however doesn’t fix and causes the the fault immediately ( cold or warm weather)

Using a cheap Ebay MAF the fault only happens when the outside temperature is really warm weather 20* plus

Car still drives okay possibly slightly worse in warm weather

Anyone had the same problem?

TIA

Is it a CAYC engine?

It’s not your MaF, it’s the EGR starting to fail.

Read this - it will explain what you can expect to happen.

Thanks for the reply

CAYB 2014 On 60k miles? Egr failing ?

I thought maybe because it only seems to happen when the weather temp is approx 20 degrees then it might only be some plastic becoming supple or some metal clip expanding thats not directly connected to the engine

The cars temp doesn’t seem to make a difference

The cheap maf is obviously less sensitive then the OEM that triggers immediately

I have some domestic CO2 smoke alarm spray cannisters used for testing smoke alarms

If i give it a vacuum test

Could i just spray this into the air-intake after the MAF? Engine ON or OFF?

Or is there some other Pipe N75? Etc to test from?

TIA

Had the car undertray off

Tightened a few jubilee clips at the drivers front lower engine bay

they were quite loose

Not sure if these are coolant or air intake pipes

Car seems to drive slightly better

Hopefully this is the issue

Thanks

Time will tell…

On 28/09/2025 at 23:49, mac11irl said:

Time will tell…

Fault keeps appearing

Installed the OEM maf instead of cheap Ebay one

Manual Gears feel slicker & generally feels slightly better to drive however it keeps throwing the following codes and the OEM puts it into limp mode with Air intake Fault code

-Maf fault code

-Air intake leak fault code

Hopefully its a hairline crack on some pipe