Blowing Smoke

TA · Member

Blowing Smoke

Mike196 · Senior Member

The black smoke is from over fueling, it's how a lot of the "chips" make more power.

-- Edited by Mike196 on Friday 17th of April 2015 07:58:31 AM

Snail · Senior Member

Hi

To get more power from your engine you need a bigger bang, more fuel more air. The fuel, air mixture after your changes needs adjustment

TA · Member

Thanks Mike

can they reprogram the chip to stop this or have i wasted my $ 1500.00
but the exhaust works well the turbo kicks in better that gives the extra power on its own

Izabarack · Guru

TA wrote:
i was told better power and better fuel accomomy

Chips usually "make" the better power by burning more fuel. Larger exhaust pipes may make the engine more efficient in making better use of the fuel burnt. Better power and better fuel economy don't go together.

Iza

TA · Member

Thanks to all for your comments
will see how things go once the chip has been
installed back into the Prado
will let you know

cheers Tony

Mike196 · Senior Member

G'Day Tony,

The exhaust will make a difference on it's own, but it's quite supptle, main difference you notice is the turbo spooling up earlier, and a small increase in cruising speed with the Van on the back. I suspect the chip can be reprogrammed to not add quite as much fuel. Some chips push the fuel pressure up which can adversely affect the pump, which on common rail engines are very expensive items.

Regards,

Mike

TA · Member

Thanks for all your comments the chip arrived back today the Prado isn't common rail it's inter cooled turbo if this makes any difference

the report on the chip said it fine

was told to get the intake manafold checked for carbon build up

our mechanics said its not a problem on our model prado only on the commom rail types

will put the chip back in and see how it goes

once again thanks to all

kind regards Tony

landy · Guru

Tony also check that your air cleaner is in good order, your inter cooler has been cleaned out they often get obstructed with oil. and your inter cooler hoses are not de laminating on the inside. all fairly common problems.
Landy

-- Edited by landy on Friday 17th of April 2015 11:56:48 PM

deverall11 · Guru

TA, what sort of chip do you have? I have a ChipIt chip. Most of the comments regarding using more fuel when the vehicle is 'chiped' are true because we tend to be heavier with the loud pedal. I have done a number of test runs with and without the chip and find I use less fuel for equivalent performance. Yes the temptation to get heavier on the loud pedal is there.
Recently we did a 2000 km drive not towing and averaged just under 10l/100 km, freeway mostly. This is in a 2013 200 series Landcruiser with a Delux ARB bull bar, driving lights no winch. The chip is on tune 4 out of 8, exhaust is 3 1/2 inch Beaudesert. This gives me an extra 100 Nm at the bottom end of the rev range. Perfect for towing. Heading east across the Nullabor in the month of August, towing a 2.5t full size caravan, we averaged 16.5l/100km.
If you jump on the Landcruiser forum LCOOL.ORG, search for postings by user DIESELTUNER, you will find a very comprehensive write up on chips, how they work and which ones are the better ones.

Blowing smoke is a sign of over fueling, assuming the vehicle is in good working order. Depending on the chip you have, you may or may not be able to fix this. Bottom line is, the supplier should not have let you drive off in that state. Our vehicle does not blow any more smoke then expected from a diesel. I also have an EDT gauge to keep an eye on the temperature should it ever get out of hand. I have never seen it go over 600 degrees centigrade post turbo. I have an alarm set at 650. This will automatically turn the chip off until the temp comes back down. Pls take the time to read DIESELTUNER's post and you will get a better understanding. Unfortunately, I had already bought the chip before the post was written. I now know which chip to buy next and so does an number of Landcruiser owners who have read this post.
So to sumerise, with prudent use of the loud pedal, you will use less fuel.
Larry

-- Edited by deverall11 on Saturday 18th of April 2015 09:29:14 AM

JackoFJR · Senior Member

How many K's has the Prado done , sometimes with older vehicles if they have a few K's up , they are bettter left alone.

I know there are plenty of ppl out there that have no problems with chips , but I also know others that have had plenty of issues .

Baz421 · Guru

deverall11 wrote:
TA, what sort of chip do you have? I have a ChipIt chip. Most of the comments regarding using more fuel when the vehicle is 'chiped' are true because we tend to be heavier with the loud pedal. I have done a number of test runs with and without the chip and find I use less fuel for equivalent performance. Yes the temptation to get heavier on the loud pedal is there.
Recently we did a 2000 km drive not towing and averaged just under 10l/100 km, freeway mostly. This is in a 2013 200 series Landcruiser with a Delux ARB bull bar, driving lights no winch. The chip is on tune 4 out of 8, exhaust is 3 1/2 inch Beaudesert. This gives me an extra 100 Nm at the bottom end of the rev range. Perfect for towing. Heading east across the Nullabor in the month of August, towing a 2.5t full size caravan, we averaged 16.5l/100km.
If you jump on the Landcruiser forum LCOOL.ORG, search for postings by user DIESELTUNER, you will find a very comprehensive write up on chips, how they work and which ones are the better ones.
Blowing smoke is a sign of over fueling, assuming the vehicle is in good working order. Depending on the chip you have, you may or may not be able to fix this. Bottom line is, the supplier should not have let you drive off in that state. Our vehicle does not blow any more smoke then expected from a diesel. I also have an EDT gauge to keep an eye on the temperature should it ever get out of hand. I have never seen it go over 600 degrees centigrade post turbo. I have an alarm set at 650. This will automatically turn the chip off until the temp comes back down. Pls take the time to read DIESELTUNER's post and you will get a better understanding. Unfortunately, I had already bought the chip before the post was written. I now know which chip to buy next and so does an number of Landcruiser owners who have read this post.
So to sumerise, with prudent use of the loud pedal, you will use less fuel.
Larry

-- Edited by deverall11 on Saturday 18th of April 2015 09:29:14 AM

Good advice here. Agree if fitted and tuned properly increased performance does not necessarily mean increased fuel consumption.

Leather Tech · Veteran Member

I have a 2011 Ranger 3lt/td and after doing some research found that there is a sensor in the exhaust manifold that clogs with soot etc which tells the engine management system the its running too lean, to compensate the computer deliveres more fuel than is nessesary.
There is a similar sensor in the air box called a MAF (mass air flow) the exhaust one is three letters as well but I can't remember what they are. Pull them out making sure not to touch the sensor with your fingers and spray them with MAF cleaner not carby cleaner, this reduced my fuel consumption by 1lt per 100km both towing and empty , also small reduction is smoke emission.
I would expect most modern diesels would have these sensors.

Santa · Guru

Leather Techs wrote:
I have a 2011 Ranger 3lt/td and after doing some research found that there is a sensor in the exhaust manifold that clogs with soot etc which tells the engine management system the its running too lean, to compensate the computer deliveres more fuel than is nessesary.
There is a similar sensor in the air box called a MAF (mass air flow) the exhaust one is three letters as well but I can't remember what they are. Pull them out making sure not to touch the sensor with your fingers and spray them with MAF cleaner not carby cleaner, this reduced my fuel consumption by 1lt per 100km both towing and empty , also small reduction is smoke emission.
I would expect most modern diesels would have these sensors.

Is it the EGR sensor your referring to? https://answers.yahoo.com/question/index?qid=20080327075814AAK001R not easy to get at on my vehicle (Transit) and not worth repairing.

Had mine replaced about 12 months back, cost around $600, made little difference to fuel consumption or performance, however put the engine management light out on the dash. biggrin

TA · Member

Hello and thanks to all of you wonderfull people for your comments and help

My truck is a 2001 Prado 3l td its done 190117 klm
The chip and exhaust are from Roo Systems
3inch stainless
its got the usual extras
Ironman bull bar 8500 lb winch
roof rack and awning
duel batteries

am going back to my mechanic tomorrow there i will plug back in the chip and see how it goes

once again i thank you all

Kind regards Tony

KevKim37 · Senior Member

The problem of manifold carbon build up can also be a problem with the pre-Common Rail vehicles. They still have a EGR valve which with the Engine Crankcase Ventilation fumes PCV (Positive Crankcase Ventilation) when mixed together in the Inlet manifold can cause a serious carbon/sludge type build up decreasing manifold diameter and airflow. It also helps to fit an OIL CATCH CAN as this can alleviate the SLUDGE problem as well as stopping EXCESSIVE oil build up in the Intercooler which a lot of Dealerships DO NOT bother cleaning out at REGULAR Service Intervals.

I have a 2004 Toyota 6Cyl turbo diesel old style injection like your Prado and at 45000kms the Inlet manifold openings had a Carbon build up of about 1/16"around their perimeters and that was mainly Towing/Highway running.

I have since carried out modifications to alleviate this and used a Threebond Diesel Engine Conditioner which is a Foaming Cleaning spray that is introduced into the Inlet Manifold with the Engine Hot and Idling. Then after the canister is empty the engine is switched off for a about 10 minutes then taken for a run after then.

This De-Carbonizing Agent helps with removal of the Carbon build up in the manifold, cylinder head inlet tracts and the under side of the Inlet Valve Heads.

When Re-fitting the Power Chip I hope that they run the Prado on the Dyno checking EGT (Exhaust Gas Temps) and AFR (Air Fuel Ratios) under LOAD as these set correctly will help with Reliability, Fuel Usage and hopefully NOT too much Diesel Smoke, this is possible. Also it is advisable to fit a Boost Gauge and EGT Gauge to any Diesel that has been upgraded with Power Modules for the ability to keep a closer eye on Critical Engine Parameters when under arduous driving conditions i.e Towing/Hills/Hot Weather.

I have a friend who after fitting a Power Module ended up cooking a Cylinder head in the same model Prado as yours and after replacing he did not refit the Chip and fitted a 2.75" Mandrel bent Exhaust and was happy to leave it at that, no more problems.

Cheers Kev.