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Discussion Starter · #1 ·
Hi,

new to the forum so apologies if this has been asked before.
The swirl flaps in the inlet manifold are remaining open and causing reduced power, rough idle and the engine light to come on. Been quoted £750 for a inlet manifold replacement!

however, following online research and speaking to some tuning specialists, Ive been advised I can get the swirl flaps deleted from the ecu and remapped. They advised the swirl flaps do not need to be removed to the remap. They have also offered to delete the egr and dpf filters (this includes removing the dpf, gutting it and replacing it).

my question is, would the remap and swirl flap delete without removing the flaps themselves cause any long term engine issues? Anyone had this done?
Any advice on this would be great!
 

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Welcome. I have not heard of the deletions you mention. I have seen pictures of the swirl flaps and egr being cleaned to solve problems.
 

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Hi and welcome to the forum.

Have heard about all the above before and it is an issue long term for a diesel engine. Not sure what is the best, but I think you have 3 main options:

1. Spray inlet manifold cleaner to remove as much gunk as possible. Problem being you will need to do this on a regular basis to keep it in check, and do a good motorway drive every now and then to help the engine burn up as much as possible. You can also get someone or yourself to manually clean out all the gunk or try hydrogen engine clean etc.

2. Clean out all the gunk and fit and fit a catch can. This has a filter that removes all the gunk coming out of the EGR before being fed back into the inlet manifold / engine. You have to replace the filter every year. Ideally a catch can is fitted when the engine is new.

3. Do an EGR, and DPF delete etc, which will require an ECU remap to remove the errors. This will just stop all gunk being recirculated back into the manifold / engine. Problem now your vehicle is probably illegal and will fail an MOT, as your car emissions will be much higher than designed, and costs a lot.

Let us know what you decide and do?
 
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