My engine chipping experience so far

[DGW Senior Member Find all posts View Profile Close DGW]

Had my chip fitted on wednesday, drove home from Sydney and a few drives since without any issues. I plan to give a good workout over the weekend to complete the configuration of the EGT and see what happens. Yes, I will report it all here.

So far, love it. Makes the Prado so much nicer to drive every where and yep, it goes like it should have from the factory

[DGW Senior Member Find all posts View Profile Close DGW]

After 150km of driving today and trying everything I have found mentioned in the threads on PP and not one problem. Performance is great, no smoke, no stalling, no cutting out, nothing but a smile on the drivers face and a wary eye for police.

Next task is practice removing the chip before servicing but have 6 months to do that, in the mean time I am going to enjoy my driving much more.

[barryswanson Senior Member Find all posts View Profile Close barryswanson]

Half your luck. I thought mine was all sorted until today. I was overtaking a car on the highway when it cut out. Missus and kids in the car. Nearly killed the lot of us and the people in the other car. I got the whole "demand your money back that thing is ####ing dangerous" lecture from the
missus. It's always large fuel leak detected that comes up on the scan tool.

[DGW Senior Member Find all posts View Profile Close DGW]

Hi Barry,

Bugar and I understand the response.

Mine was fitted by the Chip IT dealer in Sydney with the fuel rail mod (only because I didn't want do this mod myself) and the pyro. The only difference from the Chip IT documentation was, the chip is powered directly from the battery. When I questions this, the response was, their experience has shown that powering directly from the battery has eliminated the start up issues and so far I haven't had that issue. Only time will tell if this is correct.

My chip is on the same setting as sent from Chip IT, tune 4, folder 2 with firmware 2.12x

Looking back over this thread, is it my imagination or is it only auto's having issues ? Just a thought and probably wrong...

Dave

[Madkore Avid PP Poster! Find all posts View Profile Close Madkore]

Half your luck. I thought mine was all sorted until today. I was overtaking a car on the highway when it cut out. Missus and kids in the car. Nearly killed the lot of us and the people in the other car. I got the whole "demand your money back that thing is ####ing dangerous" lecture from the
missus. It's always large fuel leak detected that comes up on the scan tool.

Trying not to state the obvious, but this post is seriously concerning... Have you decided what you are going to do barry?

[MidLifeCrisis Out of control poster! Find all posts View Profile Close MidLifeCrisis]

Hi Barry,

Bugar and I understand the response.

Mine was fitted by the Chip IT dealer in Sydney with the fuel rail mod (only because I didn't want do this mod myself) and the pyro. The only difference from the Chip IT documentation was, the chip is powered directly from the battery. When I questions this, the response was, their experience has shown that powering directly from the battery has eliminated the start up issues and so far I haven't had that issue. Only time will tell if this is correct.

My chip is on the same setting as sent from Chip IT, tune 4, folder 2 with firmware 2.12x

Looking back over this thread, is it my imagination or is it only auto's having issues ? Just a thought and probably wrong...

Dave

I'm the same, had it fitted by a guy in SA from Sprint autos. All good

[Schaffer Addicted PP Member Find all posts View Profile Close Schaffer]

I saw Justin (from Chip IT) install into a 200 and was powered directly off the battery. I would assume that is standard.

[darecki Sooky & Banned Find all posts View Profile Close darecki]

I changed my mind and removed my post. Curious why? Look there: http://www.pradopoint.com/showthread...upgrade-in-GXL

[WOLF Junior Member Find all posts View Profile Close WOLF]

Hey guys, I was wondering if anyone has fitted one of the other chips on the market? Smartchip,powerchip etc Would be very interested to hear if anyone has had any issues with these modules! I dont know about you guys, but when I buy something. I just want it to WORK ! The thought of loosing power half way through an intersection or an overtaking manouver would be a sickening feeling!

[barryswanson Senior Member Find all posts View Profile Close barryswanson]

Looking back over this thread, is it my imagination or is it only auto's having issues ? Just a thought and probably wrong...

Dave

That is an interesting observation Dave.

[Chip It Senior Member Find all posts View Profile Close Chip It]

Problems have been addressed and fixed in any case.

Cheers guys

[barryswanson Senior Member Find all posts View Profile Close barryswanson]

Problems have been addressed and fixed in any case.

Cheers guys

Yeah thanks for that Rob. I got my new 5 volt turn out the other day and it works well. I did get a low fuel pressure warning running Tune 8. I have since fitted the fuel limiter disk and after a bit of mucking around the car seems happy on Tune 9.

At first I was under the impression that the fuel limiter mod will enable me to run any of the higher tunes without getting a 'low fuel preesure" code. But after Adam explaining to me that you basically you have to keep winding the tunes back until you find where it's happy without any excessive leak back through the limiter valve.

What I would really like to know is what is the difference between the tunes from say 5 through to 15? Are they increases in boost and rail pressure and if so in what increments and is it a linear increase from lowest to highest? Or is it just bringing on the increased pressures at earlier load points in the map?

Also what would be the most fuel efficent tune?

[Chip It Senior Member Find all posts View Profile Close Chip It]

Hi Barry.

Your first reasoning is correct. Incremental increases are what we are providing. Bringing in the power earlier by adding fuel in the lower cells of the map is not feasible since these areas are also used when the vehicle is idling and cruising. Remember, Chip It tuning is built around load points, NOT RPM points. Its much better this way since we can switch off "chipping" when you are at cruise so that the factory fuel map (in this case Toyota's) is providing the best economy. (ie we want to use as LITTLE fuel as possible here)

On the CR Sensor this cruise condition would be showing circa 1100 - 1300 millivolts. So at this level the Chip It Module is giving a 1 for 1 emulation. (ie zero fuel boost). And at idle the reading is also around 1100 millivolts and you don't need extra fuel at idle either. Works in well together for these reasons.

When YOU feel power coming in stronger at the lower end it is not because we are bring the chipping in earlier but because we are emulating higher numbers at the points we DO start from.

The most efficient tune??? Boy, now that's a question I cannot give you a direct answer for. Just try the tunes out so that you can find what is the best tune for YOUR engine. This is the great benefit of the Chip It module. Custom tuning and many incremental changes available for different cars. In thing for sure ... there will be a point where you go over the hump and when going for more and more power (using higher tunes provided) you will start to reverse the fuel gains that you made at lower levels ... say tunes 3 - 7. Some vehicles prefer a lower tune (around tune 3) for best fuel economy, some can go higher. It is really a "Run it up the flag pole and see who salutes

Besides this, its fun to try different tunes to see which one YOU prefer. We have customers that want ALL power ... and we certainly deliver here too. They don't get ANY increase in economy but they are happy because that's not what they are after. Some want the best power over economy and they can achieve this experimenting with our tunes. Most customers can gain AROUND 7% better mileage but we can never guarantee this. (I personally get around 5% better but I drive fairly hard)

Hope this helps.

[Eugene_Oz Lurker Find all posts View Profile Close Eugene_Oz]

Hi Robert,

I would like to ask a few questions if I can so I can get a better understanding of the capabilities of the “chips”

With your EGT temp set-up fitted, does this “switch off” the “Chip” until a safe EGT is reached, or does it lower the sate of tune to a safer level until a lower EGT is reached? Is this a separate tune, or does it remove a % of fuel and/or boost from the original tune, can this amount be varied?

If it lowers the sate of tune, does this mean your “chip” has the ability to run dual maps and switch between on the fly?

If it can run dual maps and switch between on the fly, can I use other means of switching? Say eng temp, ambient or intake temp? I know that EGT (pre turbo) is the best way to get fast response to high engine load situations, but I was just wondering.

Can the EGT unit, or indeed the “chip” be used to control other things like intercooler sprays, or water injection?

Could I set it up so the “chip” will tell the Auxiliary out (say intercooler sprays) to come on once Boost reaches a preset level and EGT are above a certain level, or can it only switch with input from one parameter? I would like to set-up sprays so if towing, long hill, temp coming up, before the EGT probe switches the chip, it can trigger the intercooler sprays, I don’t see the need to have sprays running the whole time your on Boost, only under certain points.

I know I can set up the above with a pressure switch running through an EGT unit, but if the “chip” can do it, why not use it.

If the “chip” has the ability to store two tunes and switch between on the fly, can I fit a manual switch to “detune” the “chip” if I know I am going to be in a situation that doesn’t need all the grunt, or load a safe or valet tune for when my soon to be 17 year old gets his “P’s” and want to take the Prado or Navara for a flog session?

Sorry for so many questions, but I think the more we know about these units, the better it is for all, I have had a fair bit of time tuning and modifying XR6 turbo falcons using the Xede unit from Chiptorque and later on the SCT “flashtuner”, the Xede unit had dual mapping with switch on the fly, was very handy in a Ute with over 350rwkw and well over 1000nm of torque to be able to detune for rain, wife, towing etc.

Thanks in advance.

[barryswanson Senior Member Find all posts View Profile Close barryswanson]

Thank you very much for your response Robert This is one os the reason I went with Chip-It, I don't see any other chip manufacturers on here supporting there customers like you do.

I have one further question if you don't mind answering mate?

When you say what is quoted below, does this mean that when I'm using cruise control at say 100 kays the HP pump isn't trying to cram more fuel in the rail and it's operating at a normal pressure? If so that is pretty impressive. But is the turbo running factory boost too?

On the CR Sensor this cruise condition would be showing circa 1100 - 1300 millivolts. So at this level the Chip It Module is giving a 1 for 1 emulation. (ie zero fuel boost). And at idle the reading is also around 1100 millivolts and you don't need extra fuel at idle either. Works in well together for these reasons.