How to delete a EGR and a smog pump in a C-4 Corvette I.T.Creations

[@jimgagne3801]

Thank you for talking about the pressure regulator and what to do with the air lines ...no one else on KZbin covered that.

[@andyheinkelein7515]

JUST getting started on mine. 1989, I got doug's short e headers cal. 999.99 slot, but I keeping them and I just want to know if I can take out Cadillac converters AND REASON pipe, and scab in my new headers with my stock excost , with some modifications ofcourse, ccg, or andy.

[@skizzags]

Would love to see some vacuum details for what’s routed where. I picked up an 86 C4 and it’s been modified a lot like you’ve just done. BUT, I’ve got vacuum line that are not connected and don’t have a clue where to start. The factory manuals are not clear. Then added the mods it equals super confusing.

[@blessedlife1039]

I have a stock C4, what do you need to know? You can visit my channel and maybe I already have a video that shows enough detail. Just let me know if I can help?

[@prodbk7787]

there should be a diagram on the front drivers side of the plastic radiator cover showing all the vacuum routes and hoses if it’s not there i bet you can look up a picture easy

[@mitchkuhn2371]

I'd look on the Corvette forums. If you've got a question about something, it's definitely been asked and answered before.

[@93MPH33]

@skizzags .. resolviste, acabo de adquirir un 86 y tengo el mismo problema, eliminé EGR y mis frenos dejaron de funcionar😢 alguien me puede ayudar? Hay líneas de vacío que no tengo idea dónde deben de estar

[@josephseremba6173]

Vacuum lines? The vacuum lines from the canister to the EGR solenoid under the plenum? What do you do with them? Thank you

[@RockstarReviews718]

I did the delete and since it's been done when the cars warm it's running rough and smells like it's dumping fuel. Any insight on what it is I followed the video to the T!!

[@Michael_Lorenson]

Excellent, thanks, but you've stated some incorrect info. 1) The EGR system _lowers_ combustion temperature and reduces NOX emissions. However, it pumps oily exhaust gunk into the engine to do so. _IMO,_ this is self-defeating, both in terms of emissions and combustion temps, and also performance and fuel economy, because carbon deposits build-up in the cylinders and on the intake valves over time. Basically, the EGR system gets a new, sparkling-clean engine through an EPA emissions certification test, and that's all the factory really cares about. Down the road, it makes a horrible mess, one consequence of which are combustion chamber 'hot-spots', which ironically lead to engine 'knock'. 2) The air pump actually makes the catalytic converters heat up _faster_ by pumping air into the exhaust stream, which causes unburnt fuel to ignite and generate heat that activates the catalyst function. This helped get the engine through EPA 'cold-start' emissions testing. The later development of 'wide-band' oxygen sensors allowed for better air-fuel ratio control and eliminated the need for air pumps.

[@albertjohnson3404]

With the EGR and air pump out did it give any error codes

[@HatefSadr]

Hi and thanks for the great video. I have a question about the air line that comes off the first from the top from the throttle body. What is it for, and where does it insert at the other end? Thank you ahead for your response.

[@Tokishiru]

Perfect video for what I needed, thank you!

[@stephendoing2253]

What welder are you using?

[@FleshFort]

did you get a check engine light from removing the egr?

[@thatguyrandomly460]

yes

[@christophercochran336]

Did you delete the front two cats as well or just the back. Also noticed ur engine kinda ticks. Mine does the same. Some people say is normal others say it’s not. Your take?

[@i.t.creations5573]

Yes I deleted all the cats. And the ticking I think is normal for old Chevy engines. It may get a little louder after you delete everything because the engine is going to run a little stronger. You will hear the valves more.

[@alexl9334]

Normal magnesium valve covers are louder than the plastic composite

[@wellcrc-6703]

I'd like to know if the car is still running. I've been told since the combustion Temps are higher now you'll run into knock issues. If that is the case wouldn't 93-100 Oct solve the issue?

[@TheCosmicGuy0111]

Should be running premium fuel in it anyways without mods

[@Soupy59]

Did you get a check engine light

[@CaseTheCorvetteMan]

You will in some situations yes.

[@Soupy59]

@@CaseTheCorvetteMan thank you, in time I guess it prob might come on.

[@CaseTheCorvetteMan]

@@Soupy59 if coolant temp stays below a certain level the EGR code won't come on. Need to check the factory service manual, it is in there on the DTC32 pages, but i can't remember the number without getting the book out

[@Soupy59]

@@CaseTheCorvetteMan well I got some research to do. Thanks

[@seanmccosker5946]

You can delete the EGR and get no codes if u leave the solenoid plugged in as well as the temperature sensor. The temperature sensor wire unscrews from the pipe . Just tape it up against the existing wiring harness​@@CaseTheCorvetteMan

[@thaddeauscaldwell7101]

Can the EGR and pipe be removed and block of the holes , on the engine and exhaust manifold, without removing the smog pump on a 1990 Corvette. I'm curious. I will be removing the smog pump, at a later date .

[@josemario1606]

I was thinking of that too. What's the point on disassembling all that if the only thing you're gonna do is join those 2 spots with a hose. Did you find any info on that?

[@christophercochran336]

Question on the right side/passenger side what is that little wire/plug in that nut/bolt looking thing that is in that between the third and fourth spark plug. The spark plugs that are closer to the windshield not the ac pulley. Lol my description isn’t the best sorry.

[@Nzchimeran]

The EGR tube on headers, can we leave and just put a cap nut on the metal tube if we undo the ends?

[@Michael_Lorenson]

Yes

[@Nzchimeran]

@@Michael_Lorenson ha! That was a year ago. I've now done full EGR delete, full air con delete, welded up headers, car runs great and now...I just bought a 1994 GMC Sierra, live the small block 5.7

[@seanmccosker5946]

You can leave the check valves on Just take the hoses off. It'll be fine

[@Nzchimeran]

@@seanmccosker5946 took you a year... all sorted

[@camaroguy2919]

Quick question is that vett a OBD! car or a OBD2 ?

[@bernardb4901]

Obd1 but the 1996 model had obd2

[@katofelix9705]

By any chance are you willing to sell that egr tube from the intake to the exhaust manifold ?

[@ryanle1293]

Not sure if you already found one, I'm planning on an egr and smog delete at some point I can mail mine to you

[@katofelix9705]

@@ryanle1293 sounds good ! I just need the tube from the exhaust manifold to the intake !

[@camaro75ricamaro51]

the federal epa is fining diesel trucks big money for taking smog of vehicles.. no joke.. lol

[@markfleming3659]

I’m in the process of doing the same thing to an ’87. My question is about the vacuum lines. Since the A/C, Air Pump and associated relays, switches etc. have been removed, where do the vacuum lines go? I know the fuel pressure regulator, brake booster and cruise control need vacuum, but are there other items that need it also to run the car properly? AND, what is used as a source for those lines? Brake booster and cruise control come from the rear of the intake, I believe. The Pressure regulator comes from the small nipple on the lower passenger side of the intake. What else am I missing?

[@HappyRiverboat-vy7nb]

If I bring my 85 c4 to you, can we do this?

[@baileybabington5953]

Can you do more lawn mower videos they are great

[@stephendoing2253]

Love your work ethic! I would have installed headers.

[@AmericanSurvival]

Thanks for posting.. Currently in the middle of a delete myself..

[@i.t.creations5573]

Very nice. I wish they didn’t put all that stuff on there.

[@RockstarReviews718]

@@i.t.creations5573 did the video to the T but haven't delete the cat yet now when the Vette is warm it's running rough and smells like it's dumping fuel what do you think ?

[@mikemaifeld6280]

Can I buy your smog pump desperate for one in Ca

[@thomassteilberg6904]

hey Mike, deleted mine and you can have it, where do want to send it? Mine is from 1989 model.

[@tuckerjorgensen9066]

Thank youfor mentioning taking out the cat. I was about to do this while I'm doing my head gaskets but I'm not ready to take out my cats.

[@markpieper-c9x]

Nice vid, very well made

[@rayclark7763]

Thank you bro

[@anthonyrichard8001]

thx! i gota my 86! good film...

[@vt1100]

Very good. Thanks

[@jimmydykes7961]

If I was you I wouldnt be putting this on u tube...gives the govt a hands up on who to go after

[@xpleonexia5329]

cars so old the govt doesn’t care

[@BradBaka-z5t]

But u didn't delete the egr valve ......

[@JL-gx6by]

Very good. Thanks As I could contact you, I wish I could do the same. in. my C4 86. thanks.

[@lrwarchild]

It's too hot here for AC deletes. You must not be in the south. 😂

[@merakrut]

We? Who are, We?

[@ah4800]

Cats are supposed to get really hot thats how they work

[@i.t.creations5573]

Yes that is how they work. That is why I want to get rid of them. I want my engine to run cool and have plenty of airflow.

[@ah4800]

@@i.t.creations5573 i get that but it wont effect engine temperature. Just makes the exhaust less restricted.

[@thaddeauscaldwell7101]

​@@i.t.creations5573I deleted the cats on my 1990 Corvette Coupe and didn't have any issues .

[@Paulie1232]

Update, this car was seen at the junk yard...

[@richboyracecraft]

Same place I found your mom. Small world son. ❤

[@josephfuller6930]

If you're a cookster, go ahead and grab a new Corvette which is a joke

[@jamesbrautigan9542]

Those items use near zero horsepower. Now you cannot sell that car.

[@Metroidfreek]

You can sell it all day in any state worth living in

[@xpleonexia5329]

most people delete these items off the car anyways

[@WayaWolf]

You Must live in California 😂😂 that sucks

[@josephbell3786]

Fucked up a classic

[@Raindrops4891]

yeah i wish all these uneducated wannabe car guys would quit removing all this emissions shit from these old cars to gain 5 HP