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TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old May 1st, 2005, 01:37   #16
vincenzotdi90
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Default chip tuning or obd tuning???

Hi, i've a problem i've already posted a question in this formum but i don't have reply.
Pheraps someone can help me....
I've an ibiza tdi 90 AGR motor i would chip it, but on ebay i've found another ecu ecm with same number but last 2 letter are different:
code 038 906 018 EC (mine eprom) and 038 906 018 L the other eprom.
I would buy this ecu and then remap it, but someone know if 038 906 018 L for ALH motor is compatible with my car???
I've another question i've VAG-COM software ,i've already close egr valve :-), but in ross tech page i've found that is possible boost the engine changing injiction timing in advance.What is better OBD tuning or chip tuning?
I have had powerbox but i don't like it too problem!!
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Old May 1st, 2005, 04:27   #17
VelvetFoot
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Default Re: chip tuning or obd tuning???

OBD changes timing equally over entire range - it shifts the curve. Tuning changes the curve.
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Old May 1st, 2005, 07:44   #18
Kabin
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Fuel Economy: 51.4 mpg (best)
Default Re: chip tuning or obd tuning???

True TDI OBD tuning is available abroad (not in the states yet) and has the same potential as chip tuning since it potentially accesses the same areas of program space. In the end, each solution is based on the tuner's ability.
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Old May 1st, 2005, 09:51   #19
vincenzotdi90
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Default Re: chip tuning or obd tuning???

On ebay i've found obd tuning for my car but is expensive, in ross tech page i've found that with vag-com software is possible change injiction timing and shift the curve, but is very dangerous and i don't know the exact procedure....
I've tryd to change fuel injectdet parameter but i don't see the difference..
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Old September 30th, 2005, 09:12   #20
daggychap
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Default upsolute chips

How much of a dent does a chip put into the fuel economy of a Tdi? Afterall it seems you cannot get something for nothing, and you would have to credit the engineers at VW with having gone through this pretty thoroughly.
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Old September 30th, 2005, 09:29   #21
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Default Re: upsolute chips

If you use the chip, more fuel = less economy. If you don't use the chip and baby the car you will get better economy.
It's that simple!
-BB

PS I do have an Upsolute stage II chip for sale--contact me if interested. It has 2 Months and ~$10,000 miles of use on it.
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Old October 30th, 2005, 13:06   #22
JAVORB
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Default Re: upsolute chips

i have a seat alhambra 1.9tdi 110hp ,i purchased a tuning box and have had it for 2 years ,in april this year i started selling them on ebay please take a look-http://stores.ebay.co.uk/DIESEL-TUNING-UNITS_W0QQsspagenameZMEQ3aFQ3aSTQQtZkm
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Old November 18th, 2005, 12:15   #23
PoorMan
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Default ECU Hunt

Hi everyone, I hope this post is in the right place, and it hasn't been covered before. I've searched for about 30 minutes and haven't found anything too similar: I've got an 05 Jetta wagon (not the 05 1/2) and am very interested in chipping it. Unfortunately, that means removing the ECU and shipping it out. Could someone tell me where this beast lives, what it looks like, and how to remove it; or direct me to an existing thread that covers this? Thanks very much!
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Old November 18th, 2005, 12:28   #24
4vdubs
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I don't know if the 2005 is different, but this link says it is for 2000+ Jetta. This is what I used for my 2003 Jetta. Good luck. http://www.goapr.com/VW/support/ecu_..._gti_jetta.pdf
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Old November 18th, 2005, 16:02   #25
PoorMan
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Default ECU fun!

Thank you very much, 4vdubs!
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Old November 27th, 2005, 15:11   #26
Bigjim138
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Thanks 4vdubs, now I know how to remove my ECU when I am ready for the RC stage 3/4!!! not as hard as I thought.
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Old November 28th, 2005, 16:21   #27
4vdubs
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The hardest part is getting the windshield wiper arm off, a puller helps. I only had to remove one of the arms to get to the ecu.
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Old February 6th, 2006, 19:05   #28
superqwik
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man it seems like me and about a hundred other people have purchased a new tdi this month!! anyway here goes first and foremost a big thanks to fred for this site!! I recently purchased a 2005 passat sedan gls loaded.TDI 2.0 11,000 old lady miles on it. looking to chip and add the provent system alchemy posted to it. do you think the provent is a must? not looking to pull my intake, ever. can i chip the PD motor? thanks for the help
seizure,
superqwik
2005 passat 2.0 tdi (mine)
2003 mercedes benz slk 230 kompressor hardtop conv. (hers)
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Old March 19th, 2006, 07:44   #29
gardentender
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Default

considering the difficulties (described above) in removing the ECU to install a chip,
i am wondering if it would be simpler just to put in better fuel injectors.
maybe cheaper, too?

looking for a modest power increase in the 60-90 mph range. not too big an MPG hit if driven moderately.
i have a 2001 Jetta GL 1.9T, with manual transmission, and approaching 200K miles, 47-50 MPG consistently.

i put a Pierburg MAF in it at about 100K, works like a charm, and seems to have pushed the peak torque about 250-300 rpm to the right.

basic question: chip or injectors, cost/ease?
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Last edited by gardentender; March 19th, 2006 at 07:48.
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Old March 19th, 2006, 22:02   #30
Mike_M
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Default

Quote:
Originally Posted by gardentender
considering the difficulties (described above) in removing the ECU to install a chip,
i am wondering if it would be simpler just to put in better fuel injectors.
maybe cheaper, too?
Simpler, and in the short term, just about as effective as a stage 1 chip. However, modding is an addiction. Shortly, you'll need both. (Or, more likely, injectors and a Stage 2 or 3 chip.)

Quote:
looking for a modest power increase in the 60-90 mph range. not too big an MPG hit if driven moderately.
I recommend Kerma PowerPlus 520s. I have them (no other mods of note, see my signature) and the thing pulls like a freight train from 60-90. No driveability problems, a small amount of smoke on cold-start (only because my intake is clogged pretty badly), and no hit on MPGs...I actually expect to net a GAIN in fuel economy.

Quote:
i have a 2001 Jetta GL 1.9T, with manual transmission, and approaching 200K miles, 47-50 MPG consistently.

i put a Pierburg MAF in it at about 100K, works like a charm, and seems to have pushed the peak torque about 250-300 rpm to the right.

basic question: chip or injectors, cost/ease?
For ease, injectors are a no-brainer. I wouldn't try putting in the nozzles myself, but rather I had Lubrication Specialists put the nozzles into good injector bodies and send them to you for installation, then you send your old injectors back. Very simple operation.

As far as chipping, if you have an Upsolute dealer nearby, or are anywhere near PA (and therefore RocketChip), having it done "in person" is very easy, even easier than injectors. However, taking it out and sending it in to be done...only you can decide where that rates on the difficulty scale. I won't do it. But, hopefully there will be more RocketChip dealers very soon, and I won't have to.

Another option, if you want more power with simplicity, is a tuning box. Although you won't quite get performance equal to a "chipping", you'll see a gain. The Diesel Power box seems to be favored around here, and JoeHafner sounds like a quality guy and overall good vendor to deal with. Check out his product.

Mike
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Last edited by Mike_M; March 19th, 2006 at 22:25.
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