P0401 egr flow insufficient detected, but what

[RSYOD]

Hi guys

My car (2004 150pd) has one fault code and the eml light is on.

It's P0401 exhaust gas recirculation flow insufficient detected.

The car came to me with this fault, I cleared it and it stayed off for a few hundred miles, it then came back on. I fitted an Allard EGR delete kit and the light comes on and stays on if I reset it it, it comes back on the same day.

So what I'm wondering is, was the fault code up before because I had a blocked egr valve, and now I've fitted the delete the code is staying on because it's blocked off, or is there a fault?

Thanks

 

[andy68]

Got that code on my 1.8T AUQ, blocked mine off, I know it can be mapped out{another job on the to do list} probably be able to do on Diesels, sure someone with more knowledge on Diesels will be along shortly

 

[RSYOD]

Thanks Andy,

anyone else?

 

[RSYOD]

Anyone?

 

[lee_vrs]

It's probably because you have deleted the egr
You can turn down the egr using vag com had my fabia
Done never put a light

 

[RSYOD]

Thats my point it was on before the delete too

 

[CupraChris1981]

I know this is 10 years old, I have a similar car and have had this error code for a long time, I have only ever been able to reset it temporarily with obdlink it always pops back up, anyone figure out how to get it off permanently if it is not a serious issue need to get it through an MOT...