EGR & FCV

mackruss · **Posted:** Sun Sep 14, 2008 3:09 pm

Definite improvement i would say in overall performance but then i also cleaned up the map sensor that was caked in soot, did the EHM
and removed the cat and free flowed the rear muffler so it's difficult to say but in miles per gallon at least 1 to 2 at the moment. Once again it comes down to driving style
and the exhaust mod alone made me want to tramp the gas pedal through the floorboards for awhile as she felt so responsive and faster turbo spooling helping as well.

onthehunt · **Posted:** Sun Sep 14, 2008 8:50 pm

I used the fire extinguisher trick on a humvee that ran away and it worked extremely well. I was surprised on how well it worked. Yet another reason to have an extinguisher in your vehicle.

Turbo Tim · **Posted:** Mon Sep 15, 2008 12:26 am

You don't suppose that the engine in that car had any problems before this happened? One clue might be if you don't need the rear view mirror anymore because you can't see behind you because of all the smoke!

mackruss · **Posted:** Mon Sep 15, 2008 4:24 am

What is the fire extinguisher trick?

Larry R. · **Joined:** Sun Jan 21, 2007 1:35 am **Posts:** 92

You fire the extinguiser into your engines intake, thereby removing the oxygen from the engine which stops the engine. Just make sure you don't use the extinguisers with dust in them or you will dust your engine.

tulsa · **Posted:** Mon Sep 15, 2008 11:26 am

I am assuming the fire extinguisher needs to be CO2.

Larry R. · **Joined:** Sun Jan 21, 2007 1:35 am **Posts:** 92

Yes, C02, For some reason I couldn't think of what it was called.

warp2diesel · **Posted:** Mon Sep 15, 2008 8:33 pm

Larry R. wrote:

You fire the extinguiser into your engines intake, thereby removing the oxygen from the engine which stops the engine. Just make sure you don't use the extinguisers with dust in them or you will dust your engine.

CO2 fire extinguisher would be best, dry chemical would clog your air cleaner unless you are using a K&N that is showing light through it, then your engine would be dusted.

irboogie · **Posted:** Tue Sep 16, 2008 6:03 am

Hello all:) I tried this mod and now I have a CEL w/p0401, what should I check?

mackruss · **Posted:** Tue Sep 16, 2008 9:00 am

It'll be best if you describe what you did first.

MTB_TDI · **Posted:** Tue Sep 16, 2008 9:22 am

My jeep is chipped by KermaTDI and have had no CELs. The tuning was supposed to turn off or reduce my EGR as much as possible. I wonder if I will get a CEL with the stock tuning. Has anyone else tried this without any chip tuning? Have you had any CELs?

I am going to flash mine back to stock and see what happens. If I get a CEL, I will clear it and flash it back to the tuning I have now. Either way, I am not going to have my butterfly valve in my Jeep.

irboogie · **Posted:** Tue Sep 16, 2008 9:28 am

I have a blocking plate before the EGR and pulled the butterfly out of the FCV. I can clear the code but it returns after about 3-5 mins. I originally had the MAF unpluged, and it would clear the CEL after a few cycles after being reconnected... Other than that just a EHM..

mackruss · **Posted:** Tue Sep 16, 2008 9:53 am

I still have not had a cel after the mod and that's now close to two weeks, have you reconnected the maf, and fcv connectors?

MTB_TDI · **Posted:** Tue Sep 16, 2008 10:07 am

I missed reconnecting the FCV at first too. For some stupid reason, I missed it. I reconnected it and the CEL went off a couple of starts later.

mackruss wrote:

I still have not had a cel after the mod and that's now close to two weeks, have you reconnected the maf, and fcv connectors?

mackruss · **Posted:** Tue Sep 16, 2008 11:51 am

Try disconnecting the battery for about 5mins.

irboogie · **Posted:** Tue Sep 16, 2008 8:59 pm

I checked the FCV and MAF and cleaned the MAP all were good. I unplugged and reconnected them and reset the P0401 CEL, I'll road test tonight and see.

MTB_TDI · **Posted:** Tue Sep 16, 2008 10:48 pm

I set my tuning back to stock and got the P0401 CEL on the second start up. I cleared it and it came back on the second start up again. I flashed the tuning back to the Kerma Tune and cleared the CEL and it hasn't returned after multiple starts. It looks like the Kerma Tune has blocked the CEL from coming on. That is what I requested when I got the tune. Does anyone want me to put the butterfly back in and see if I get a CEL with the EGR blocked off only?

That way if anyone wanted the EGR disabled you could get the Kerma tune and put a block of plate on the EGR and you're done, no messing with the FCV.

I am leaving my Jeep is. Kerma Tune, no butterfly in the FCV and a block of plate on the EGR. I rest a lot easier knowing there is no EGR going back to my intake!

irboogie · **Posted:** Wed Sep 17, 2008 12:34 am

I did not make it to the end of the driveway and my CEL was back

I might be checking into your Kerma tune.

mackruss · **Posted:** Wed Sep 17, 2008 3:27 am

Strange that i don't get a CEL without the Kerma tune and neither does MackJ and i did exactly what MackJ did

irboogie · **Posted:** Wed Sep 17, 2008 4:19 am

I'm going to reverse it to see if it will clear. I think I may have other issues...

EGR & FCV

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