Squeeto wrote:
WWDiesel wrote:
Has anyone made a stage I tune with the EGR/FCV delete, and delete the MAF with no DTC. Right now if you unplug the MAF with the current EGR/FCV delete tune, you get a CEL. Would like to do away with the air intake box and MAF sensor and replace all the parts with a huge round K&N air filter like I did on my Dodge...Hopefully it would make this baby breath a whole lot better I would think?
thoughts?
Maybe modifying the Smoke Map (if we have one)? Like the EGR, it also uses MAF data.
My understanding is that the smoke map is essential another limiter too prevent to much fuel from being dumped, causing smoke. What I had read is that they need to buffer the optimum AFR by about 1.2x to achieve 0 smoke, so they have to run it lean to prevent any smoke. The smoke table looks at the incoming air and will reduce fueling if necessary to prevent smoke from occurring. The problem I would see with modding the smoke map is that the Jeep may smoke if you were to max out the values, or it may stop all fueling if you zero it. Either way I bet the smoke map still looks for the MAF.
If you read through this site(
https://sites.google.com/site/vagecumap/edc16-error-dtc-removal), they explain about DTC's and how they are handled in the EDC16. Essential each DTC is given a handle code which tells the computer what to do when the DTC trigger(IE should it just turn on the CEL, should it go to limp mode, should it save the DTC in the computer etc etc). If you zero out this handle code it causes the the ECU to never do anything with the code, it essentially ignores it. I attempted to find where they are located but couldnt, or didnt put in enough time.
I also would love to do this since my MAF appears to be dead and I just want the CEL gone!
EDIT: Come to think of it, isnt this how Toy-vw was working around his EGR block. It sounded like he had just deleted the codes but never actually turned off the EGR, just blocked it.