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kenzoXTrail Profile
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Date Registered: 06-2005
Location: Lower North Shore, Sydney
TOTAL POSTS: 17
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posticon "Piggy Back" ECU


Hey all,

Just wanted to discuss about installing an engine management system into an X-trail. After installing the Hi-Tech Muffler exhaust (Thanks Lambros!) the fuel is running very rich. The guys at C&V performance recommended I get a piggy back ECU to correct that problem and to also increase power by tuning it. Does anyone have experience in this?? I am currently looking at the Haltech Interceptor. From what I have read it seems to be the best option. Is anyone else interested in getting one? Do I hear a group install?? emoticon

Let me know
Paul.

Last edited by kenzoXTrail, 17/Dec/2005, 10:07 pm
17/Dec/2005, 10:06 pm Link to this post Send Email PM   Send Private Message
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29088
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Re: "Piggy Back" ECU


Hi Paul,

To be honest, I didn't hear about the Haltech piggy back ECU until you and Lambros told me about it.

I have read all the information concerning this mod and it sure does sound like the most sensible way to go once you start doing performance mods, but I think it's a bit early to have it done now, just by having the "twins"

The exy sure does run a bit rich (can't say too rich though) and I have asked the dealer to look at what can be done in this regard from their end.

I have contacted Haltech accordingly and was informed that a piggy back ECU (called Interceptor) will be released early next year and they will let me know when it's available.

This means that there are bound to be some bugs with it before it is tested accordingly and everything is bedded down.

In the meantime, the piggy back ECU that has been in the market for quite some time and used widely by Nissan Performance seekers is the APEXI SAFCII unit.

This one has been proven to work with the exy and the results are proven too.

Read all about it HERE

For those interested to read about the Haltech Australian Interceptor, you can find all the information HERE

Group-buy? Good idea, but I think am not ready for it yet, I still have other performance mods in mind before my exy will need the piggy back ECU emoticon

P.S. I'm happy that I could help you score the twins and that you're happy with them so far.


Last edited by jalalski, 26/Mar/2006, 9:10 pm


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17/Dec/2005, 11:57 pm Link to this post Send Private Message MSN Blog
 
basshead Profile
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X-TRAIL HOLIC
 


Date Registered: 02-2004
Location: Panania, Sydney
TOTAL POSTS: 2852
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Re: "Piggy Back" ECU


UniChip is another one you could consider. I can't guarantee they'll work with our engine management (but I can't see why not) - I had one in my Pulsar SSS and it was enough for the mod's I'd done to it (I would've needed a computer more complex if I'd gone further than exhaust, extractors, cams, and headwork). Fitted price was around $1500, but it may have changed since then. Also the guys in their QR25DE-equipped Almera's (overseas) who have had time to play around with different setups could possibly point you in the right direction. (The UniChip has a different name over there, though)

If you've got some time to read through this site, have a look there: http://www.qr25de.net



Last edited by basshead, 20/Dec/2005, 9:59 pm


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'04 S2 ST Auto. Nudge_roofracks_tow_tints_Lightforce_GME_YokoGeoA/T-S_TBS_bashplate_50mm-spacer-lift
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20/Dec/2005, 9:58 pm Link to this post Send Email PM   Send Private Message MSN Yahoo Blog
 
blackxtrailgt Profile
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X-TRAIL ENTHUSIAST
 


Date Registered: 12-2005
Location: Northern NSW
TOTAL POSTS: 103
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Re: "Piggy Back" ECU


Greddy E-Manage

Available thru Autobarn, they retail for around $600 and are a PC adjustable Piggyback ecu.

After having it professionally installed and if you know what your doing, you can adjust fuel & timing with a laptop, while the one that controls the fun'dage drives around the block a few times. Improve performance & fuel economy, with each mod you make.

Even tune it for 98 octane fuel!?!

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Nissan X-Trail GT ~ SR20VET, producing 253Kw@wheels on 15psi and living with my uncle(its new owner) on the Sydney North Shore :D

ME?:
Smashed Twin Turbo VY SS Ute work hack
Heavily modified VQ35 powered N14 Pulsar - 350Hp@front wheels
31/Dec/2005, 1:43 pm Link to this post Send Email PM   Send Private Message
 
Dave4x4 Profile
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X-TRAIL LEGEND
 


Date Registered: 08-2005
Location: NEWCASTLE
TOTAL POSTS: 685
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Re: "Piggy Back" ECU


Has any tried this device it seem to be a lot cheaper than the $600 to $1500 alternatives, or is it a case of its to cheap to be any good or is it that simple and it just works. Does any one have any knowledge of this product
http://www.speedydelivery.co.uk/car-tuning-power/nissan-x-trail.shtml


---
(Dave Newcastle 2004 ST
ID: X211

31/Dec/2005, 4:54 pm Link to this post Send Email PM   Send Private Message
 
blackxtrailgt Profile
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Date Registered: 12-2005
Location: Northern NSW
TOTAL POSTS: 103
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Re: "Piggy Back" ECU


Dave4x4,
This device is basically a potentiometer or variable resistor, commonly used as a volume adjuster on stereo systems.

It involves removing the wiring from the Intake Air Temperature Sensor and using this device to 'fool' the ECU into believing the air temperature is much colder than it is. The ECU will lean out fuel mixtures and advance ignition timing to try compensate.

It is just a bandaid approach and I would not recommend fitting it. IF, I was to fit one, I would probably just wire in a single resistor (with the right resistance) into the sensor plug for around 10 cents.

---
Nissan X-Trail GT ~ SR20VET, producing 253Kw@wheels on 15psi and living with my uncle(its new owner) on the Sydney North Shore :D

ME?:
Smashed Twin Turbo VY SS Ute work hack
Heavily modified VQ35 powered N14 Pulsar - 350Hp@front wheels
31/Dec/2005, 5:11 pm Link to this post Send Email PM   Send Private Message
 
Dave4x4 Profile
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X-TRAIL LEGEND
 


Date Registered: 08-2005
Location: NEWCASTLE
TOTAL POSTS: 685
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Re: "Piggy Back" ECU


Blackxtrailgt,
I was just curious but as I thought it was to cheap to give you the goods. I'm happy with the exy performance as is with a kid in the back even if I look like accelerating hard I get the look from the cook
cheers Dave

---
(Dave Newcastle 2004 ST
ID: X211

31/Dec/2005, 5:20 pm Link to this post Send Email PM   Send Private Message
 
blackxtrailgt Profile
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X-TRAIL ENTHUSIAST
 


Date Registered: 12-2005
Location: Northern NSW
TOTAL POSTS: 103
Reply | QUOTE
Re: "Piggy Back" ECU


Basically, the kit they are offering is overpriced for what it is. I doubt it would register more than about 2hp @ wheels but could cause all sorts of problems within the ECU.

ECU: Exponential Cost Unit ~ Anything to do with the ECU ends up costing LOTS!



---
Nissan X-Trail GT ~ SR20VET, producing 253Kw@wheels on 15psi and living with my uncle(its new owner) on the Sydney North Shore :D

ME?:
Smashed Twin Turbo VY SS Ute work hack
Heavily modified VQ35 powered N14 Pulsar - 350Hp@front wheels
31/Dec/2005, 5:38 pm Link to this post Send Email PM   Send Private Message
 
Eggins Profile
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X-TRAIL ENTHUSIAST
 


Date Registered: 08-2004
Location: Brisbane
TOTAL POSTS: 184
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Re: "Piggy Back" ECU


For the electronics DIY people try THIS

This does the same job as decribed above but quite a bit more accurately and permanently. This would require a professional with dyno to adjust. It may even be possible to cause engine damage if you just messed around with it.
This is basically exacly what those Piggy Back ECUs are, but just a lot cheaper.

There's also a bunch of other stuff at Jaycar that's pretty interesting: Browse for Kits, Automotive
Check the Digital Speedo adjuster if you've fitted big tyres!

(Edit by Jalal) Converted the long URL using the "hide code"

Last edited by jalalski, 3/Jan/2006, 11:07 pm


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1/Jan/2006, 6:51 am Link to this post Send Email PM   Send Private Message
 
xtrailing Profile
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X-TRAIL ENTHUSIAST
 


Date Registered: 02-2005
Location: Geelong, Victoria
TOTAL POSTS: 190
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Re: "Piggy Back" ECU


blackxtrailgt, welcome! Have you had much to do with the unichip piggy back ecu? Had the car booked in to have it done about 12 months ago but pulled out at last minute as I wanted to get the extractors/exhaust done & sorted plus any other mods, so as I only had the one trip for installation/tuning. Rather than going back every time I did something to the car. Price was around 12-1300 dollars fitted. Have now finished what I'm going to do performance wise & am at the stage of doing the ecu for the finishing touch.

Cheers Phil
2/Jan/2006, 8:10 am Link to this post Send Email PM   Send Private Message
 


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