Afternoon 

 

Last night my Fabia 1.6tdi put on a glow plug light (flashing) and the car goes in to limp mode. Had it plugged in this morning and and came up with an EGR fault - sensor low voltage reading. Now I have had an EGR delete via the cars plug in port and the EGR is still on the car. However, It's still putting the light on and the car in to limp mode. Been told further that the sensor fault needs to be taken out of the car ecu basically.. (from my understanding - which will be done tomorrow)

 

Is this a common problem for this car / engine?

Edited 6 October, 20178 yr by Ian9006

You have not deleted the EGR just because you turned it off on the ECU, the EGR needs to be removed and blanked off. Removing the EGR causes extra issues and that is you will now be putting 100% exhaust soot gasses into the DPF which can cause it to clog faster. A failed DPF, thats a 4 figure fix. ££££ 

 

Regarding if this is a common issue for the 1.6tdi, this is a difficult question to asnwer because it depends on a few factors, these being, driving style, fuel used and whether or not you do lots of town driving (these cars like to be driven hard every now and again and they will thank you for it!) When I first got my 1.6tdi I had flashing coil lights coming on every now and again for about 2-3 months, I stoped using tesco fuel and started using shell (plus booting it in 3rd up to 70 every morning on the motorway plus harsh backroad driving) coil light never came back and still hasn't. touch wood. 

 

I do 60mile motorway drives 4 days a week avg 450 miles a week. 

 

my tip, drive it hard every now and again, use good fuel and it will return amazing results. I have got 50+mpg over my tank of fuel this week. 

 

 

 

Edited 7 October, 20178 yr by JGrindel

6 hours ago, JGrindel said:

Removing the EGR causes extra issues and that is you will now be putting 100% exhaust soot gasses into the DPF which can cause it to clog faster.

 

You seem to be under the mistaken impression the a functioning EGR system reduces the quantity of soot arriving at the DPF. Unfortunately, the opposite is true.

3 hours ago, Wino said:

 

You seem to be under the mistaken impression the a functioning EGR system reduces the quantity of soot arriving at the DPF. Unfortunately, the opposite is true.

A fully functioning EGR puts exhaust gasses back into the engine to be re burnt to reduce emissions and soot, correct? But in the Op's case he has turned the EGR off but not removed it so doesnt that mean it could be set to putting all gasses and soot into the exhaust directly.

 

I read that you shouldn't remove the egr / delete it if you still have a DPF as it will clog it more due to no exhaust gasses being recirculated.

 

I may be wrong.

Reburning is not what EGR is all about. Wiki it.

28 minutes ago, JGrindel said:

A fully functioning EGR puts exhaust gasses back into the engine to be re burnt to reduce emissions and soot, correct? But in the Op's case he has turned the EGR off but not removed it so doesnt that mean it could be set to putting all gasses and soot into the exhaust directly.

 

I read that you shouldn't remove the egr / delete it if you still have a DPF as it will clog it more due to no exhaust gasses being recirculated.

 

I may be wrong.

Yes you are wrong. Have a research online about the "benefits" of egr blanking. Not having an egr it's better for the DPF but not on the air quality.

Edited 8 October, 20178 yr by Bertie90

18 minutes ago, Bertie90 said:

Yes you are wrong. Have a research online about the "benefits" of egr blanking. Not having an egr it's better for the DPF but not on the air quality.

Nice to know. Thanks, I will do my homework next time. 

 

What I said about these cars needing a good hard run though still stands. Since abusing my 1.6 every now and again its got better economy and runs smoother!

Thanks for your reply chaps. Actually now going for a professional remap and EGR blanking (using a plate) tomorrow with Pembrokeshire remapping /DNA tuning (I don't trust the guy who was originally sorting it!). My sole reasons for deleting it rather than replacing is 1) Cheaper to remove than replace and 2) (Hopefully) no more EGR issues

I'm led to believe that this won't have any detrimental effect on the DPF (and if it does, that'll be dealt with accordingly too) The car is driven fairly regularly on motorways or in 60 zones and still get the part blocked DPF light on at times (but clears easily enough with the built in regen cycle). Fingers crossed it solves my current problems. Modern diesels with EGR's / DPF's are a pain in my opinion - and for this reason is why it will be replaced soon enough with a petrol fueled car. 

 

 

On 10/8/2017 at 10:21, JGrindel said:

Nice to know. Thanks, I will do my homework next time. 

 

What I said about these cars needing a good hard run though still stands. Since abusing my 1.6 every now and again its got better economy and runs smoother!

just asked the FB forum. Here are a few replies