Anyone Chipped a 2012 Passat TDI?

[NSTDI]

Just wondering what is out there for options and what effect it had on fuel economy and performance?

Thanks,

Don

 

[gergg]

I thought about it with Revo here in town, but figured I'd wait until the warranty runs out.....plus, the car runs pretty darn strong the way it is.

 

[Niner]

Why? To pollute more? It's fine just the way it is with the factory software and programming.

 

[NSTDI]

Why? To pollute more? It's fine just the way it is with the factory software and programming.

In my experience chipping improved fuel economy (maybe polluting less?) so my question is has anyone done it and what effect did it have on mileage.

You can pollute more by driving around alone in a gas or diesel 4 door 3/4 ton pickup when you don't have to. A 2012 Passat TDI in itself is a big reduction in pollution as compared to that.

From the lack of replies, I guess not many people have chipped one yet.
Don

 

[tdiatlast]

None available from REVO..."working on it".

As for your analogy to a 3/4 ton, let's be honest. We're ALL hypocrites. I rant about those removing their DPF, then go out and smoke a turkey in my "Big Green Egg"...using natural wood charcoal...cough...gasp...wheeze...man, that's good eatin'...

 

[IndigoBlueWagon]

Asked Jeff from Rocketchip about this last time I saw him. Said he had nothing available yet for the Passat.

 

[Stuart Little]

Take a gander at TDI-tuning.co.uk, my digital diesel tuning box specifically for my CR has done wonders, no huge fuel improvement yet (switched to winter blend right before it arrived) but I've also maintained the same fuel economy which normally would have gone down a bit.

So there's optimism there for the econ, but the real difference is the power, the benefit is that this system can be remove in 60 seconds and then you're back to warranty.


-Sent with Tapatalk via my iPhone

 

[Niner]

In my experience chipping improved fuel economy (maybe polluting less?) so my question is has anyone done it and what effect did it have on mileage.
You can pollute more by driving around alone in a gas or diesel 4 door 3/4 ton pickup when you don't have to. A 2012 Passat TDI in itself is a big reduction in pollution as compared to that.
From the lack of replies, I guess not many people have chipped one yet.
Don

If your mpg is improving, your timing is advanced, and you are running hotter, at higher pressures, and emitting more NOX. Of course, after chipping, you've never measured that, your driving experience seems more important than everyone elses health. If you read tuners fine print, you'll find the disclaimer, "for off road use only." Which would be pretty pointless on a 2012 Passat it's not good for off road use.
Frankly, the boards are not to be used to promote illegal activity. Just saying, you sound like a shill for a tuner, trying to develop interest. If it was me, I woudn't post here, I'd approach tuners directly via an email or a phone call to get my answers.

 

[NSTDI]

If your mpg is improving, your timing is advanced, and you are running hotter, at higher pressures, and emitting more NOX. Of course, after chipping, you've never measured that, your driving experience seems more important than everyone elses health. If you read tuners fine print, you'll find the disclaimer, "for off road use only." Which would be pretty pointless on a 2012 Passat it's not good for off road use.
Frankly, the boards are not to be used to promote illegal activity. Just saying, you sound like a shill for a tuner, trying to develop interest. If it was me, I woudn't post here, I'd approach tuners directly via an email or a phone call to get my answers.

I don't know any tuners and am more interested in real world experience than in reading ads from anyone- they all make the best thing going according to any ads. Most of them don't need shills to develop a product, that happens after they have one, then they need a shill to promote what they have.

From reading on this site for many years, many who use this site are interested in improvements to their TDI, so asking questions here is what this site is for.

Don

 

[gergg]

I don't know any tuners and am more interested in real world experience than in reading ads from anyone- they all make the best thing going according to any ads. Most of them don't need shills to develop a product, that happens after they have one, then they need a shill to promote what they have.

From reading on this site for many years, many who use this site are interested in improvements to their TDI, so asking questions here is what this site is for.

Nothing wrong with your questions, there always seem to be a few confrontational posters on this forum, try to ignore them.

 

[Niner]

I don't know any tuners and am more interested in real world experience than in reading ads from anyone- they all make the best thing going according to any ads. Most of them don't need shills to develop a product, that happens after they have one, then they need a shill to promote what they have.
From reading on this site for many years, many who use this site are interested in improvements to their TDI, so asking questions here is what this site is for.
Don

Try this: http://forums.tdiclub.com/forumdisplay.php?f=13

Now I remember you, I did a search, you didn't know the difference between a 40 or 45mm torx bit and a 8mm 12 square bit for a door lock on a VW. How's that for real world experience?

 

[gergg]

Now I remember you, I did a search, you didn't know the difference between a 40 or 45mm torx bit and a 8mm 12 square bit for a door lock on a VW. How's that for real world experience?

Niner, you seem like a knowledgeable guy, not everyone knows as much about VW's as you, maybe you can cut this guy some slack, his questions seem to be fair enough......just saying it might help.

 

[TomB]

I have to agree with Niner. I know, I know....

Why mess with it? 40+ MPG is not good enough while MEETING emissions and doing your part to make the air cleaner and staying LEGAL. I would NEVER purchase a car with modified emissions.

Unlike the older vehicles where emissions devices were just slapped on during the 70's and 80's and REALLY hurt performance, I see no such problem in this case, so not sure what the goal is here.

 

[NSTDI]

Nothing wrong with your questions, there always seem to be a few confrontational posters on this forum, try to ignore them.

Thank you Gergg.

Don

 

[IndigoBlueWagon]

Why mess with it? 40+ MPG is not good enough while MEETING emissions and doing your part to make the air cleaner and staying LEGAL. I would NEVER purchase a car with modified emissions.

Why do folks assume that a chipped car won't meet emissions regulations? Must stock cars are well within required emissions levels so they'll continue to be in compliance if neglected or if some component isn't 100% effective. I'd be surprised if a mildly tuned Common Rail wasn't still in compliance assuming, of course, that the tuner didn't disable emissions-related equipment or the owner didn't remove hardware.

This reminds me of concerns about tuning shortening engine life. Perhaps, but owners unwittingly do things all the time that shortens engine life, like not replacing fluids or filters on schedule. My belief is if you're careful to maintain your TDI well then you can tune it and meet emissions standards and enjoy long engine life.

 

[40X40]

I think so as well.

Bill

 

[Niner]

I think so as well.
Bill

Hmmm, I think if I'm careful running red dye diesel, I should be OK too. That OK with you too Bill?

 

[tdiatlast]

Please...just stop...You're too confrontational to be considered humorous.

 

[40X40]

Hmmm, I think if I'm careful running red dye diesel, I should be OK too. That OK with you too Bill?

No, that would be tax evasion and it is not 'all right' with me. Honest folk pay their own way. Begone.


Bill

 

[wofman]

If your mpg is improving, your timing is advanced, and you are running hotter, at higher pressures, and emitting more NOX. Of course, after chipping, you've never measured that, your driving experience seems more important than everyone elses health.

Was on this forum to check for a friend thinking about '12 Passat TDI ...

Since I see there is some obvious misinformation here, thought I'd try to help (no, not a tuner). The "If mpg, then timing" is simply not the case. Ditto for running hot enough to change emissions. Neither is true. No idea why somebody would assume such.

Actually, with TDI the mpg can be higher or lower. Higher because less throttle required, for example, with easy driving/cruising at low rpm, slight incline on highway. When car used to lug a bit under 2,000 rpm it doesn't with chip. But you can get on it, of course, and use more fuel, etc. Not exactly a social/environmental menace with mileage in 30's, though.

Everyone else's health? Really? Somebody needs to have some fun.

 

[eprater1]

Was on this forum to check for a friend thinking about '12 Passat TDI ...

Since I see there is some obvious misinformation here, thought I'd try to help (no, not a tuner). The "If mpg, then timing" is simply not the case. Ditto for running hot enough to change emissions. Neither is true. No idea why somebody would assume such.

Actually, with TDI the mpg can be higher or lower. Higher because less throttle required, for example, with easy driving/cruising at low rpm, slight incline on highway. When car used to lug a bit under 2,000 rpm it doesn't with chip. But you can get on it, of course, and use more fuel, etc. Not exactly a social/environmental menace with mileage in 30's, though.

Everyone else's health? Really? Somebody needs to have some fun.

he has made other assumptions in the past with no factual basis and never been able to back up his claims in the past as well. i have learned to ignore him and advise the same to you and the opp.

in theory does the cat not heat up exhaust to burn off certain gases?? would heating up the combustion chamers/gas not do the same (not saying it might not be good for the engine just asking a general question)? i do not know the complete answers to these questions at all and looking for factual, experienced and knowledgable answers not some blah blah blah answer.

 

[jumpinjoe]

This is my first tdi, and I was thinking of chipping the car when I purchased it. My last car was an APR chipped 1.8t Jetta. With only 140 hp, I expected to miss that power on a diesel. However the Passat has plenty of torque and passing power on the highway. I'll most likely leave it stock, and enjoy the ride

 

[wofman]

Re cats - they change C monoxide to C dioxide and hydrocarbons to water, but biggest issue is NOx w diesels. I know of no reasonable concern that an increase in turbo boost (Revo chip tune) is going to render the emissions equipment insufficient. I'm sure stage 3 mods could increase temp levels in chambers to some point that chemistry is an issue, but I come from gas engine turbo tuning - don't know enough about fueling and pressure mods available with TDIs; off-shelf Revo for TDI is not in that league.

Jumpin Joe - it's a considerable improvement over stock.

 

[Stuart Little]

Unsubscribing due to the level of @sshole-ish-ness going on. I swear to god, sometimes on here if I asked if 2+2=4 I'd get ten different answers and a reason why four causes more emissions then 12 cowfarts.

 

[detroitmike]

Unsubscribing due to the level of @sshole-ish-ness going on. I swear to god, sometimes on here if I asked if 2+2=4 I'd get ten different answers and a reason why four causes more emissions then 12 cowfarts.

Good point. Maybe Niner should point his rage towards America's dairy farmers.

Methane is a greenhouse gas.

 

[Niner]

Was on this forum to check for a friend thinking about '12 Passat TDI ...

Since I see there is some obvious misinformation here, thought I'd try to help (no, not a tuner). The "If mpg, then timing" is simply not the case. Ditto for running hot enough to change emissions. Neither is true. No idea why somebody would assume such.

Actually, with TDI the mpg can be higher or lower. Higher because less throttle required, for example, with easy driving/cruising at low rpm, slight incline on highway. When car used to lug a bit under 2,000 rpm it doesn't with chip. But you can get on it, of course, and use more fuel, etc. Not exactly a social/environmental menace with mileage in 30's, though.

Everyone else's health? Really? Somebody needs to have some fun.

If more HP was doable while meeting pollution standards here in the USA, tier 2, bin 5, don't you think VW would have done it already, to sell the crap out of these?

Try living down wind and adjacent to California, with 38 million people and no public transportation infrastructure, and you'll appreciate clean air standards that exceed your need for speed. No different than second hand smoke.

 

[Niner]

No, that would be tax evasion and it is not 'all right' with me. Honest folk pay their own way. Begone.
Bill

Yeah, and chipping would be what, pollution evasion? I guess you feel you get to chose what laws you obey and which you evade? Doesn't sound too honest to me. If you don't like pollution laws, then get them changed.
I find it ironic, all the whiners in this post don't even own 2012 Passats, let alone understand CARB clean air requirements or DOT pollution requirements, or VW being able to sell a 50 state clean air car, instead of the old 2006 45 state car.
People that chip their cars remind me of drug dealers giving it to kids to get them hooked. "Here, just try a little..." Next thing you know, they are addicts spreading their addiction too. No thanks. Just say no to tuners and chips Here's your full disclosure and sign, all in one... "For off road use only."

 

[Niner]

Was on this forum to check for a friend thinking about '12 Passat TDI ...

Since I see there is some obvious misinformation here, thought I'd try to help (no, not a tuner). The "If mpg, then timing" is simply not the case. Ditto for running hot enough to change emissions. Neither is true. No idea why somebody would assume such.

Actually, with TDI the mpg can be higher or lower. Higher because less throttle required, for example, with easy driving/cruising at low rpm, slight incline on highway. When car used to lug a bit under 2,000 rpm it doesn't with chip. But you can get on it, of course, and use more fuel, etc. Not exactly a social/environmental menace with mileage in 30's, though.

Everyone else's health? Really? Somebody needs to have some fun.

You must be a genius, how were you able, with more boost and more pressure and more fuel, to overcome Boyles Law and the production of more NOX? If you can burn more fuel, in the same container volume, in the same amount of time, with more oxygen and nitrogen available, how is it possible to generate less pollutants while accelerating faster? You can defy the laws of Physics? I'm sorry, even Einstein was unable to do that.

 

[chris@revotechnik]

Wow the assumptions here are insane.. (ok well one persons..)

Ok first of all most diesel tunes for a stock application do not raise boost more then .5-1psi, some applications maybe a little more.

Most of the changes are to fuel timing as mentioned, Niner you brought up advancing the timing increases heat which increases NOX, but you ignored the fact that increased fuel injection timing (like ignition timing in a gas engine) actually results in a more effcient and complete burn often REDUCING egt temps since more combustion occurred in the cylinder. Now you'll come in with something about how lower temps increase some other form of emissions.. Sorry you can't have it both ways telling people they can't run hotter or cooler, besides the various cats in the system all work over wide operating temperature ranges and you have shown no proof of anything you have claimed with a tune negatively affecting emissions.

In other cases and sometimes with the increased advanced, fuel quantity is increased. OMG physics more fuel more air must mean more pollution. Sure in theory but just because something is a law of physics does not mean that real world emissions are affected. Just to dumb it down a car making 140hp at 3000 rpm and a car making 140hp at 3500 rpm are using aproximately the same amount of air and fuel (dumbed down don't try and twist that). So if you are fine with making 140hp at 3500 rpm but someone with a tune likes to make 140hp at 3000 rpm how are you actually polluting less than they are?

There are so many other factors here that you are ignoring because apparently some tuner wronged you and you need to speak out against them. Emissions are NOT as cut and dry as you are making them out to be. The person with a tune and basically just a shifted powerband is NOT necessarily creating any more pollution than you are.


The reason it says For off road use only is because like most modifications to a vehicle which include lowering it, raising, changing tire size, putting on rams head taillight covers or adding fog lights there is some law somewhere that says you cannot do this. It is there because people like to sue, it is no different then Toro putting a warning that the lawn mower may chop your fingers off. I guess no one should ever mow their lawn again because it comes with a disclaimer.

Here is a great example from a related market, Diesel truck tuning. A few years Back the EPA came knocking on the doors few tuners because they were selling race only DPF delete hardware and software. These same companies sell tunes for DPF equipped factory vehicles as "for off road use only". The EPA had no problem with the latter, told them they could keep on selling it but that if they did not discontinue the sale of the DPF delete "race" equipment they would go after them.

So Niner it seems the agency that makes us put "for off road use only" on our products and is responsible for the laws regarding automobile emissions doesn't have a problem with a basic tune as long as emissions equipment remains in tact.

 

[chris@revotechnik]

Now to answer the actual topic at hand.

The ecu used in the 2012+ passat TDI for the US region is running a processor different then the other 2.0 CR applications. This requires different methods to read and write to as well as unlocking to allow them to run files with modified checksums. At this time we have just begun creating our tools to work with that processor as it is apparently shared with some 3.0 TDI applications. While there has been some interest the vehicles are still new and this isn't exactly the market with people running from their VW dealer right to the tuner, this means that some other engines and processor types get a little more priority. But this is on our radar, interest in the 3.0 applications with this processor are picking up outside of the US so it is being worked on in the background. Once we have our tools ready to read/write these ecus we'll be able to continue with the tuning. The tuning is actually the easy part these days.