I have recently remapped my vehicle and got it DPF delete EGR delete?

Tiny
EMZINO
  • MEMBER
  • 2007 AUDI A3
  • 1.9L
  • 2WD
  • MANUAL
  • 117,636 MILES
I’ve recently remapped my vehicle and got it DPF delete EGR delete, but now the cars having trouble starting it cranks but won't turn over but when I do get it running just as I Press the brake or clutch at a junction the car stalls and won't start again.
Wednesday, January 24th, 2024 AT 3:20 PM

3 Replies

Tiny
BORIS K
  • MECHANIC
  • 762 POSTS
Hello,

After the remap did you then blank off the EGR valve and remove the DPF from the exhaust system?

Have you checked for any engine related fault codes?

How to use a suitable diagnostic tool:
https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Cheers, Boris
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Thursday, January 25th, 2024 AT 5:46 AM
Tiny
EMZINO
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No, I haven't done any of that.
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Thursday, January 25th, 2024 AT 7:37 AM
Tiny
BORIS K
  • MECHANIC
  • 762 POSTS
Hello,

The point of a delete in the ECM, Engine Control Module, is that it no longer monitors these 2 components, EGR valve and DPF.
If you leave them in the system the DPF will no longer regenerate, clean itself, and if blocked can cause lack of power, hard start, issues.
The EGR valve can get stuck in an open position which in turn will pass exhaust gas into the intake system causing hard start and cutting out issues.
A blanking plate installed in the EGR passage will stop this from happening.

A link:
https://www.darksidedevelopments.co.uk/products/egr-blanking-kit-for-1-9-2-0-tdi-8v-bew-brr-brs-bke-brb-bpw.html

Regarding the DPF delete the options are to either remove the internals of the DPF, which a good exhaust shop could do, or fit a replacement exhaust piece.

A link:
https://www.darksidedevelopments.co.uk/products/darkside-2-5-stainless-dpf-delete-downpipe-for-1-9-8v-tdi-bls-brm-2-0-8v-tdi-bmp-bmm.html

Hope this helps.

Cheers, Boris
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Friday, January 26th, 2024 AT 2:41 AM

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