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How To Chip a MK3 VR6 ~ DIY Video

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Today I will teach you how to chip your MK3 Volkswagen. This process involves removing and installing the ECM of the car, as well as replacing the "chip". This is also known as tuning the vehicle. We are going to be performing this VW DIY on my MK3 GTI with the VR6 engine.
For full show notes, visit the blog post at ~ humblemechanic....
Reflect Tuning ~ reflecttuning.com/
VCDS Wifi interface ~ store.ross-tech...
Review of VCDS VagCom ~ • VCDS or Vag-Com Review...
Join me today as we learn:
Tools needed for chipping a MK3
Removing a MK3 ECM
Disassembling a MK3 ECM
Removing and installing the ECM chip
Installing the MK3 ECM
Checking and clearing faults with VCDS
The things I messed up in this DIY
and more
Humble Mechanic Podcasts
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Project White Wookie ~ MK3 GTI Videos
• MK3 Project Car Walk A...
Failed VW parts videos
• How VW Parts Fail
Tool Reviews
• Tool and Product Reviews
How To videos
• How To Fix Your Car
MK1 VR6 Swap Videos
• VR6 Engine Swap MK1 Ca...
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Опубликовано:

13 авг 2024

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Комментарии : 144

@famadrid78 3 года назад

Thanks Charles, just got my chip from reflect time to teach my old dog a new trick. Thanks for your great videos on this platform

@hozerdee5993 8 лет назад

Yeah i chipped my MK3 to delete the secondary air pump and the second O2 sensor .. Never regretted it , love the way my car runs now !!

@270billycraven 7 лет назад

second 02?

@MorningMindfulness 7 лет назад

billy craven post-cat

@aaronburnette4585 6 лет назад

I know I’m way late but can you please tell me what product you used?

@thatgtguy6729 8 лет назад

You are the best online mechanic by far! I'm thinking about buying a mk5 gti and I'm so glad i found your page! I can not thank you enough for the advice and information your throwing out there for free and its good advice not joe blow in his shack. many many thumbs-up!

@HumbleMechanic 8 лет назад

+thatgtguy ! Right on man. Thank you very much.

@jp8ksynth 8 лет назад

Great video. Did you notice any performance gains from the chip upgrade? You should always use an ESD (Electro Static Discharge) mat when working with electronics or circuit boards. The last thing you want to zap the ECU or any part of the board.

@Ryl33hz 7 лет назад

just got a Reflex Tuning chip for my Mk3 VR6, runs soooo much smoother than the GIAC previously used. Highly recommended.

@NahshonWebb 5 лет назад

I see this chip getting around now especially i just seen this vlog from chrstian smith doing a decent preview of the chip. Ive had 95 vr with the garrett chip and wanted to know the difference. There was a timenwhere giac was the shit and the best chip for the vr. Being that you went from giac to reflect tuning.. you feel its more power? Garrett boast to this day 12 hp and tq respectively. And does it really rev out to 7500 rpm as to garretts 7200? Thanks.

@RelaxingVibes202 4 месяца назад

What are the advantages of this chip?

@kwannie617 7 лет назад

Someday I hope I could have my dream MKIII cabrio built by you, it would be an honor... keep up the cools vids and awesome quality work!

@alvarogarza6389 7 лет назад

kwannie617 i have one and will be installing a turbo soon just gathering all the parts im not sure if i will do it in this channel or a new one i hope you get the chance to watch @vr6mafialasvegas

@euroglx 8 лет назад

Cool video, reminded me when I chipped my 97 Jetta GLX with a GIAC chip. Made a world of difference.

@HumbleMechanic 8 лет назад

I think it needs a few bolt on mods to really shine.

@euroglx 8 лет назад

+HumbleMechanic I agree, I had few when I installed the chip.

@taiwilson8966 5 лет назад

chip combo with exhaust is nice on that motor

@ridiculousness7477 2 года назад

I installed my Reflect Chip. The car doesn’t start. And yes, I installed it properly

@Friebe1000 8 лет назад

I'm surprised you havent rigged up a cabin air filter from mk4. The bracket for it bolts right into the mk3

@HumbleMechanic 8 лет назад

That is absolutely on the list!

@guidosaur7506 7 лет назад

right. I just did the same thing

@ridiculousness7477 2 года назад

@@HumbleMechanic hoping you can help. I bought a chip for my obd2 12v, followed your instructions (thank you). But the car doesn’t start with it. The check engine never illuminated once the accessory lights came on. I swapped the stock one back in, the car started. What gives?

@tommyb8046 8 лет назад

i see alot of people suggest an anti static work surface. the only suggestion i would have is to keep that seal good and to help it a little bit.....a thin layer of di-electric grease works wonders. Also great for your main harness plug in to keep any water from getting into a plug with an old seal.

@unforgiven101inc 8 лет назад

awesome wish I had a friend like you. thanks for all your video's...

@HumbleMechanic 8 лет назад

+unforgiven101inc I appreciate that!

@alfbittner6489 8 лет назад

Great vid, but what exactly does this chip do?. Is it a tunning chip, or is it a performance upgrade, how much HP increase. I might have missed something, or does this chip just allow you to clear fault codes?. Can you get a performance chip off your guy, might be a cheap HP increase before the turbo goes on.

@nikeelm 5 лет назад

it looks like its used to cancel out codes ...not performance related

@user-dn6qy1ou1f 4 года назад

You can clear basic codes like that with most any scan tool. Vcds is used to get access to everything the dealership can. Im guessing it was a performance chip. He just didn't explain what it altered

@patrickdavids7120 8 лет назад

Thanks a million got a response from reflect tuning I'll b ordering me one soon

@HumbleMechanic 8 лет назад

+Patrick Davids awesome.

@katanamd 8 лет назад

PLEASE work on an electronic safe surface. When I was putting a new heat-sink on a computer part I was also using a micro fiber rag. While working I felt a little shock, that $300 computer part was toast.

@Ms.Fowlbwahhh 6 лет назад

Modern electronics are pretty good about static. Still always a risk. Iv done that a few times (even smelled a little smoke) but it still worked.

@alfbittner6489 7 лет назад

I've recently changed my a/c pump, to do that I removed the front end, it was an easy procedure and accessibility made the job easy. Long story short I popped a header tank hose and the temp warning light came on, fixed hose, drove car and it died three times. The last time a friend with a scan tool did a code clear and it started and got me home. When we went to drive again no start. Is this what you meant do a one key cycle, to make sure the code doesn't come back, and what if it does.

@bbirgersson8639 3 года назад

Why just a 2.8 😁 mine is a 2.9 ABV 4WD 1996, now it's a 3.0, 264 cams + 2mm valves and a straight 2.5" exhaust, did it my self. 😁

@freelan89 8 лет назад

Am I the only one who thinks that isn't the best place a ECU should be placed?

@HumbleMechanic 8 лет назад

+freelan89 you're not the first to mention it. But everything worked out just fine.

@domzcollesso9070 6 лет назад

wont water get in there?

@ferfire9 6 лет назад

No, it has a draining system that makes water go to the sides of the car, no water gets in there, only dust and stuff.

@jeremyjohansson3445 6 лет назад

The Mercedes A-Class had the ECU right on top of the engine. In order to change the air filter, you have to disassemble the ecu. Haha I hate that car

@LashaChubinidze 4 года назад

no it's isn't bad place.

@Elswalbe 6 лет назад

Waiting for my ecu flash to come back from Ian @ Reflect. Stage 1 with SaI + egr delete. Immo delete Going to be the last piece in completing my vr6 mk4 wagon swap!

@DanielSchenk99 8 лет назад

Very Nice informational video! Thanks Charles!

@bstevenson1002 6 лет назад

What's a good ECM I should get for my 04 GLI 1.8T. .. looking to gain more HP......????

@RAA12586 6 лет назад

I did this the other day and found a giac chip installed from a previous owner, my plug had lots of broken bits and did not disassemble as easy, now my check engine is back on again. At first I though it was because the connection wasnt secure, but I've been driving around with no driveability issues.

@billyp.7889 8 лет назад

It would be nice; if you would do a review of the wireless HEX NET, version of VCDS. Many of us; have the cable for years but have not made the leap to the wireless version. So far, from a cost effective point of view; I still think the VCDS License with HEX-USB+CAN Unlimted VIN (All VAG), is the best deal (although being tethered to a windows based laptop is a drag). It would be cool; to use a phone or tablet, however.

@HumbleMechanic 8 лет назад

I will. Some of the wifi is still beta. Well at least on the app. But it's pretty awesome

@Piston206 6 лет назад

Hello i just started watching your videos and you are the Man, specially be cause i just got a VR6 Jetta 1996 and its my project car Do you think i can be able to rebuild the engine by my self ? i already know how to remove the motor and transmission off the car watching your video. congratulations for your Chanel i am a new subscriber And of course i wanna say thanks for all the information and knowledge you share here!

@AGuysGarage 8 лет назад

Good video thank you for sharing. Is the ECU located in the same place on a MKIV Jetta? I have a 24V VR6 that i wouldn't mind chipping. ;P

@HumbleMechanic 8 лет назад

It's in a similar spot. But I think on your car, it's a flash not a chip replacement.

@SasukeGarage55 8 лет назад

I have a question can I relocate the ECM, I really never understood why Volkswagen put it there

@AA-ol7xn 3 года назад

Hi help/exsperience would be great i have a 0bd2 vr6 loom(uk spec) and have just recived a north american ecu with same ecu numbers but the americam ecu has little corner blocks on the ecu plug and the uk spec loom does not have cutouts for them (ecu wont plug into loom). All pins/conectors and wires match exactly . anyone know about this befor ? thanks for any replys

@jockbad 3 года назад

I wonder if this is the same for the MK4 AFP VR6

@stanwilson8089 2 года назад

I have a 1999 VW golf mk 3 1.9d,will it benefit from a new chip? (or does it have one?)

@PeekaSnipes 8 лет назад

In the 2 month since you installed this chip did you see a noticeable difference? I don't know much about all the different brands of chips, but for $100, and within the website description, it seems decent. Thank you :)

@HumbleMechanic 8 лет назад

Other than I have no check engine light, not much. But this is a stock car that needs some maintenance. It will really shine when I get an intake and exhaust. :)

@PeekaSnipes 8 лет назад

+HumbleMechanic Fair enough, I'v got an exhaust/intake.. getting rid of that secondary air code would be cool :)

@nicknicu1787 8 лет назад

Awesome video dude! 10 thumbs up for this one!

@HumbleMechanic 8 лет назад

Thank you so much. :)

@gglovato 8 лет назад

those PLCC chips, so retro!. BTW i'd also check the state of the capacitors whilst the ECU is open, a while back iirc on Toyota cars bad caps where failing the ECUs(there was a recall or something), doesn't hurts to check and it's an easy repair. Also, that chip mod is easy with those socketed ROMs, newer ECUs are more complicated sadly :( About VCDS, love it but it's crazy expensive, and they seem to have cracked down on chinese copies(there where bulk of them on DX, now i can't find any)

@Robert-vi6tb 8 лет назад

+Guillermo Lovato , little complicated, use google. Hint - vag com 15.7 gives 104000 hits. you have it on first page.

@dereklacy 6 лет назад

Great video, quick question though. Is a TBA needed when swapping chips? Also, what does a stock chip look like? PO of my car is pretty sure it's chipped, but I think it's stock.

@RyanSollars 2 года назад

Great video. Thanks.

@GarthGoldberg 8 лет назад

Did the fault code have anything to do with the chip swap? Or was that an existing fault? I'm not sure I see the point of connecting the VCDS other than clearing the fault. Would the fault have cleared otherwise?

@HumbleMechanic 8 лет назад

It was an existing faulting the main reason for the chip. It's always good to check faults after work like that. Many failures are 2 trip monitor failures. That means they need to fail a test twice to turn the MIL on. But you can often see the fault stored before the MIL is on. This may help prevent an issue while on a test drive. Think about the drive into work @6am the next morning and the MIL pops on. I'd rather know I have an issue while I am at home or the shop. Rather than wait until I am on the road.

@jonathanhernandez6878 Год назад

Pardon my ignorance. But what are the benefits of changing that chip?

@augustriveira 8 лет назад

I have been watching your video and really like them. I am doing some research and would like to know what you think. I have a 2002 Jetta Wagon with VR6. I have been discussing doing some modification with others who own VR6s. I was told that the stock engine can handle 400 hp all day long. I utubed vr6 stock engine with turbo and found 400hp turboed cars. I know I would need to upgrad the fuel system. I only want 320 to 350 hp. Would a chip and injectors work? I sure wish you were closer to Washington State and see if you would be interested in doing a show on stock engine upgrade. Anyways any input would be appreciated as I completely trust your knowledge about these motors..

@justinb954 6 лет назад

HumbleMechanic-I realize this is an Mk3 tune but, is there a good ECM MOD FOR MY Mk4 2003 BDF 2.8-litre VR6 24v ?? I know its holding back with its electronically controlled HP. The factory says its at only 200hp stock but, i saw one dyno'd stock at 211hp with only basic mods. KN Filter, royal purple oil, etc

@trevorfaulkner4934 5 лет назад

Did you reflash your ecu in your 24v? I see Malone Tuning has reflash sale until the end of the year at ECSTuning that will net something like 15hp and 20 tq and for under $300 I think it's worth it.

@stevenharpervw 2 года назад

Super interring having Vcds on a phone

@hugh74882 8 лет назад

I recently bought in 1995 Jetta GLX vr6... do you have any videos how to replace clutch master cylinder and brake master cylinder thank you

@HumbleMechanic 8 лет назад

Not yet.

@hugh74882 8 лет назад

Thanks for the fast response the reason why I was looking into it is because just like you I work at a dealership parts and service department mazda and not many are into German cars

@TheSigp220 8 лет назад

Will Vagcom fix my automatic door locks from automatically re-locking on their own after a period of time in my 98 Golf? I've locked my keys in my car because of it before.

@HumbleMechanic 8 лет назад

No. You probably have a bad latch in the car.

@TheSigp220 8 лет назад

What part of the latch would actually be bad? The only thing I can think of is the contact switch in the rear hatch mechanism. I can only open my hatch from the button in the center console and its only able to open for the same amount of time that it takes for the for locks to auto lock. A correlation perhaps?

@masso172 5 лет назад

I wish it would've shown some sort of results

@JoeRafferty0 8 лет назад

Good Video, what's the performance improvement on the Chip? or was this just a repair job? Thanks!

@HumbleMechanic 8 лет назад

Thanks. The chip has an estimated 10hp gain. I don't really notice the improvement while driving. But the car is stock. You can feel that airflow is somewhat stifled. I think with an intake and exhaust it would be very noticeable. The main reason for this tune is to solve a check engine light issue due to a failing secondary air system.

@questionssm 8 лет назад

dude static from the microfiber towel. Lucky,

@FirstLastOne 8 лет назад

+Questionssm as they say... "ignorance is bliss".

@classicvwguy 7 лет назад

is the obd1 2.0 ecus the same? all the videos i have seen are obd 2 vr 6s

@RelaxingVibes202 11 дней назад

Hi Charles do you by any chance still have a OBD2 ECM laying around?

@HumbleMechanic 10 дней назад

for a MK3? I don't think I do. BUT I have a lot of crap hahaha so who knows.

@RelaxingVibes202 10 дней назад

@@HumbleMechanic can I contact you on WhatsApp

@Ismailabousaad 6 лет назад

Where can I find the ECU connector in my corrado

@aaronpeople101 5 лет назад

Ismail AS in the rain tray, same as the gti

@Jacksonkellyfreak 8 лет назад

Hey Charles, on the wireless OBD cable, do you have to have a VW specific cable or will one of the $20 generic bluetooth OBD adapters on Amazon work?

@HumbleMechanic 8 лет назад

It MAY work, but my gut says no. It is looking for a wifi address and I don't know if the generic ones will have what it is looking for. I think the wifi is great, but it is pricey. I think for most folks the standard cable is the way to go.

@Jacksonkellyfreak 8 лет назад

+HumbleMechanic Even still laying out 100 something for their proprietary connector is better than the cost of the software. If it works on wifi, then it's probably a definite no because most of the generic ones I've seen are bluetooth

@kirkw95skate 8 лет назад

question.... my vr6 is q chipped. I bought an emissions delete chip as well, can I use them both at the same time?

@HumbleMechanic 8 лет назад

It will only take 1 chip. The tune should delete emissions too

@kirkw95skate 8 лет назад

+HumbleMechanic the q chip will?

@jackhogan2077 3 года назад

Hi humble mechanic. Are there any cons to replacing with a performance chip ? Thanks

@HumbleMechanic 3 года назад

Not really. a basic chip wont do much in older cars.

@jackhogan2077 3 года назад

@@HumbleMechanic do much as in harm or good ?

@1975Kombi1 5 лет назад

What type of chip is that? Looking for a chip reader to read my flash.

@HumbleMechanic 5 лет назад

IT came from Reflect tuning

@MrMan-ol4ic 6 лет назад

Wouldn't it be smart to fix the issue versus trying to cover up or bandaid the fault with the engine?

@HumbleMechanic 6 лет назад

Maybe it all depends on the goals for the car.

@MrMan-ol4ic 6 лет назад

Ahh......smart answer!

@kamilgrabowski9869 3 года назад

What are the benefits of installing one of these bad boys?

@HumbleMechanic 3 года назад

A tiny HP bump. And it dropped my check engine light for secondary air delete

@kamilgrabowski9869 3 года назад

@@HumbleMechanic thanks for the reply

@schuldiner01 8 лет назад

Should definitely be wearing an ESD bracelet when doing this kind of work.

@leeverink32 7 лет назад

is there a bulb test for the instument clusters for all vw's?

@HumbleMechanic 7 лет назад

+otto leeverink most of them from 99 and up.

@ReyesDude06 6 лет назад

Where can i find the little plastic screws that were missing because my car has them missing to. please someone help.

@HumbleMechanic 6 лет назад

IF you mean the ones on the cowl, I got new ones from the dealer

@ReyesDude06 6 лет назад

Thank you! You are the best i didnt even think about that lol

@ChaseHollandProductions 4 года назад

Do mkiv’s need a chip aswell?

@osiris122cf 7 лет назад

is their a difference between the 2.0 and the VR6 chip and can I put a VR6 chip in a 2.0?

@HumbleMechanic 7 лет назад

+osiris122cf yeah they are totally different

@osiris122cf 7 лет назад

yea it does but it doesn't the timing is off but thanks anyways

@adolg4049 10 месяцев назад

What does that chip ?

@Jonq360 6 лет назад

does this work for digifant 2?

@mduwhite8177 3 года назад

Hamble machenic can I give you the cach and you get me the chip please

@mduwhite8177 3 года назад

And you get the the chip

@dieseld4281 8 лет назад

Do u have a video for the mk4 chip?

@HumbleMechanic 8 лет назад

+Diesel D No, sorry I don't

@kevinclark2856 4 года назад

VW MK3 GOLF GTI 2.0 8v ECU 037906025R how to remove immobilizer show me how

@allgucciiii 4 года назад

Why did you change the chip?

@HumbleMechanic 4 года назад

To account for secondary air delete

@jeremywhittler8591 6 лет назад

High impedence (peak and hold) line driver. Running 850cc or 1000cc injectors? Definitely the way to go. Adaptronic has some units starting at 850$. For 1350$ you can get an 8channel high output unit(m2000) that can make your VR idle way better than stock even with big/fast injectors. Use a narrow spray pattern on a single valve.(12valve). Standalone has autotune have no fear. Run and do anything you want. Convert to drive by wire and direct ignition.

@patrickdavids7120 8 лет назад

does the chip make the. Car faster

@HumbleMechanic 8 лет назад

+Patrick Davids yep. A small boost on HP and Torque.

@aaronpeople101 8 лет назад

is your gti obd1? did any 12 valve vr6 cars come with obd2?

@HumbleMechanic 8 лет назад

No it's OBD2. Most 12v were obd2. I think the 24v came out in 03

@aaronpeople101 8 лет назад

I have a 1993 obd1 vr6 in my corrado, wish mine was obd2.

@HumbleMechanic 8 лет назад

I think you can swap out to a coil and remove the distributor

@aaronpeople101 8 лет назад

+HumbleMechanic I think I've heard of some people doing that. Definitely worth looking into, thanks.

@taiwilson8966 5 лет назад

corrado is sweet cause its basically having the light weight of a mk2 VR

@bluescreenofwin 8 лет назад

I see a Yeti sticker. I believe. :D

@HumbleMechanic 8 лет назад

@winemillerbrian 3 года назад

What would you recommend for a 12v vr turbo tune

@dieseld4281 8 лет назад

Is the mk4 same?

@HumbleMechanic 8 лет назад

+Diesel D the mk4 is done with software via the OBD port.

@anthonyshockey5576 8 лет назад

I get OCD about certain things, when working on a car too man.

@pwneytube 8 лет назад

him setting the new rom pin side down on the static generating towel made me cringe

@FirstLastOne 4 года назад

I KNOW RIGHT?! Even funnier when he was mentioning that he doesn't like using power tools on those types of devices and waiting for him to mention static discharge. Then lays the whole ECU down on that synthetic cloth. Double face palm.

@dprmotorsport1777 7 лет назад

chip works on euro mk3 vr6?

@HumbleMechanic 7 лет назад

Not sure if this exact on will, but I am sure there are chips out there for that.

@dprmotorsport1777 7 лет назад

i'm asking because i have a tt chip for us mk3 vr6 obd2 but i moved to germany and now i have a obd2 euro mk3 vr6 and the ecu looks the same i really wanna use the chip