So i decided to do an EGR delete on my car as well as delete all that evap stuff thats included with it just to clean up the engine bay and not run the chance of those vac lines popping off anymore. I looked at the how-to's in here and it seemed pretty straight forward, so i figured how bad could it really be? I was wrong...

So after all this i give it partial throttle (data log showed 40-45% on the TPS reading) the wastegate was opening at like 15-18psi.. It never opens or atleast not that i realize at partial throttle..

Also, at cruising i was seeing 7-9 counts of knock as well. 0 at idle.

anyways, the codes that are popping up were i believe a p0122 and some evap code (cant remember the number) but i know thats from doing the EGR/evap delete.. Im not sure why a TPS code popped up.

Any ideas? i was thinking maybe a boost leak.

Thanks

 

Did you do anything with the tune? There's a lot to be done there. The car will also be super lazy at cruise load unless you add back all the timing that the EGR can't add anymore.

 

I have not touched the tune.. I wasn't aware an EGR delete required a retune?

 

I found out that I unknowingly disconnected my knock sensor... That solves the knock at cruise issue lol. Luckily I only drove it about 5 miles. That's probably why the WG was opening at 18 psi at partial throttle as well

 

can you elaborate a little. what timing should you shoot for?

 

I don't tune my own car.. But why would doing an EGR delete affect the timing? Or why would it affect WOT if EGR isnt even doing anything at WOT?

 

Thanks..

 

You have to disable all EGR related items and CELs in the Periphery tables in Ecuflash if that's what you're using. You no longer have EGR timing advance so you have a good 8* of timing you can add in the cruise load cells in the High Octane Ignition Map.

 

Oh ok.. this makes perfect sense. So disabling the EGR overall will add that timing back? also, none of the codes i threw were egr related P0325 Knock sensor (that was from me accidentally leaving it unplugged) P0122 TPS sensor ( from me not having it adjusted right) and the last one was some evap code (cant remember the exact number) but i know its from having that open evap line.. is this normal?

 

With the evap canister at the back of the car removed, you will have a 3/8" tube run all the way to the engine bay that is fine just sitting there. Since I use a fuel cell, I plan on using that hose as a secondary fuel line when I add another pump.

That EGR timing is only used when the system is being used at cruise load/RPM and with it removed, you never get that timing advance so you have to add it in to your main ignition map. A standard tune runs 38* timing in that area and another 8* added when the EGR system is in use. I run 44* at those load cells on my map making a huge difference in drivability.

 

Oh ok i see.

Another question, im pretty sure my TPS% without giving it any throttle is different now. i did the shaft seals as well so i think i may have positioned the TPS a little bit different but at idle its at 12.9ish % when i hear normally its supposed to be around 13.3% ( not sure what mine was before) but it still goes to 100 if i go WOT. nothing to worry about?

 

That's normal, idle can be in the range you said and WOT can show 95-100%. Mine shows 12.9% to 96%.

 

Yeah somewhere around 13% is fine. I think mine is at 12.9 or so now.

The how-to threads tell you which bits to disable or if you're on tephra V7, which I think wingz did for you, there are usually a couple shortcuts to disable all the codes.

I had already removed the egr timing in my tune so when I did the EGR delete my timing was already good.

It really cleans up the engine bay getting rid of all that extra junk doesn't it?

 

Does the car run better after removing the EGR stuff? I've been thinking about removing it, but don't want to have any negative effects from it.

 

Im pretty sure im not on tephra v7 because im only on a single E85 map. and yes the engine bay is way cleaner. tucked the throttle cable while i was at it.