Hi people,

There are a few of us on here now with the ERG delete and the notorious engine management light, which doesnt bother me in the slightest.

However, although my Furby sailed though the MOT this year i have been told that as of January the 1st the illuminated management light becomes an immediate fail :(.

I have the engine that cannot have the code deleted so need a solution to trick the sensor that its getting a signal. I'm not going to be the only one on here with this issue come next MOT so a solution needs to be found, unless one already exists and someone would like to point me in the direction.....

Regards,

Rob

What ecu or engine exactly does this have a problem on?

I'm also wanting to get rid of my egr completely but I don't want an engine management light on.

what year fabia do you both have? i have an 04 fabia with the EGR delete and have a map on that is wrote specifically for a remapped fabia with EGR delete, no engine management light, no problem

Its a 2005 Fabia, and Jabba were unable to map out the light

Must be a BLT engine, this cannot from what i gather be mapped out, the earlier ASZ engines could be.

I think the BLT engines came in sometime in late 2005.

Picked it up in December 2005 and i do think it is a BLT.

So a solution to the problem is needed..... looks like im going to need to put a cat on it as well :(

Im floating in your boat pall :( kinda sucks...

mines a blt...jabba disconnected it and ive no eml....

uh

??

how

?

erm

?

hmmm perhaps Jabba have the answer?

I doubt it. I'm not sure if that edc16 ecu can have the light turned off. Seen this problem on a polo too. But then again, could the vac system not be plugged in such a way to fool it?

I dont understands this, warwick hunt is the ONLY person who has had the eml light removed on a BLT but jabba are making out they dont know how to do it. Very odd

Matt

warwick hunt - can you post up the part number on your ecu please?

SO i think the difference between ours and Warwicks is the fact his EGR is still in place just 'deactivated' which would mean that the sensor is still in place.

the issue here is that the sensor just sits there with no connection which is what is causing the EML to illuminate. There has to be some way of tricking this by either wiring it to a different connector or feeding it some voltage.

Going to have to talk to Jabba......Kev......

What sensor? The N239 or N18 valve? It makes sense to keep these plugged in anyway and just to block the pipes.

No mine has all been removed and a new piece of pipework added, so there is just a connector floating about.

BLT has only one pipe....

1 egr pipe yes but when you remove the egr system you leave a couple of vac pipes not attached.

aah i see (puts noob hat on)

Now have a look at what i have found...

http://ecomodder.com/forum/showthread.php/improving-mpg-vw-tdi-15929-5.html

"I participated with the people on lostkjs.com to build and use a device that mimicked the presence of a functioning EGR system on the Jeep Liberty CRD. The EGR valve and AFC valve were both disabled, and a circuit inserted into the MAF line to modify the air flow signal according to what the ECM requests. Mileage improved universally, reported as between 1 to 4 mpg increase on a baseline of mid-20s, for a 4% to 16% improvement.

I am building a similar circuit for the ALH TDI. Most people who disable the EGR on the TDI simply live with a CEL, or modify the EGR flow using the VDCS software, in both cases the ECM is aware of the lack, and may make fueling and advance changes to compensate and avoid emitting NOx. My device masks the absence, so the variable is only the lack of EGR to make mileage assessments.

I have disabled mine and driven with the CEL, and my mileage did suffer along with driveability."

http://ecomodder.com/forum/showthread.php/improving-mpg-vw-tdi-15929-5.html

Thanks for posting this up, I've been trying to find the numbers of the efficiency of an EGR. If you see conclusions below its quite significant, coupled with the fact that Cummings is starting to drop "ad-blu" development in exchange for DPF and EGR combo for efficiency. So imo its worthwhile keeping it in.

Found on the same website:

EGR VS No EGR Experiment

Conclusion is:

• Brake thermal efficiency decreases with

increasing EGR rates. However, this

decrease is marginal.

• The concentration of smoke density

increases.

• Brake specific fuel consumption increases

marginally with increasing exhaust Gas Recirculation rates at high load. (decrease mpg by ~15% experiment assumed that it was stationary EGR State with increasing torque, in real life it changes with torque so decrease in mpg will be much less.)

• The exhaust gas recirculation (EGR) has

definite impact on NOX reduction (reduced NOx Emittions by ~75%)

Thanks for posting this up, I've been trying to find the numbers of the efficiency of an EGR. If you see conclusions below its quite significant, coupled with the fact that Cummings is starting to drop "ad-blu" development in exchange for DPF and EGR combo for efficiency. So imo its worthwhile keeping it in.

Found on the same website:

EGR VS No EGR Experiment

Conclusion is:

• Brake thermal efficiency decreases with

increasing EGR rates. However, this

decrease is marginal.

• The concentration of smoke density

increases.

• Brake specific fuel consumption increases

marginally with increasing exhaust Gas Recirculation rates at high load. (decrease mpg by ~15% experiment assumed that it was stationary EGR State with increasing torque, in real life it changes with torque so decrease in mpg will be much less.)

• The exhaust gas recirculation (EGR) has

definite impact on NOX reduction (reduced NOx Emittions by ~75%)

All offset by the fact that the hesitation with the more aggressive EGR on the BLT engines is blummin' annoying, and makes me want to smash the car to bits with a sledgehammer.

Still, by shoving a ballbearing in the vac pipe, the mod is completely and very easily reversible.

I was under the impression commin's were only avoiding adblue on certain models to attracts small fleet owners who don't want the extra hasstle & expense adblue brings

Matt

It's going to be an MOT failure?? FFS!! Mine came on intermittently after the EGR gasket was replaced to cure the BLT stutter and for the last 6 months or so the EML light is permanently lit. So will I have to put an old diameter gasket in just to pass an MOT now? Will it not be at testers discretion, the guy who did the gasket will probably be MOTing it and knows the score.

Which gasket did you use? I had a 9mm hole one for about 6 months and the EML light never came on with that.