Hey guys! Can any one reconmend a computer chip fo a xb? I was browsing through this site and only saw one listed! Thanks!

 

There are none that actually work yet. If you find one it is a rip off.

 

Yeah Ive only seen one and it was only $30 bucks. Thanks bud!

 

yeahh .... no.
our ECU's are tricky.

 

It all depends on what you all consider to "work"

The little $30 chip, when installed correctly "works" as advertised, for a period of time.
As has been said many times with this question, our ECUs seem to return to stock settings after awhile.

And this subject has been covered many, many times. Search and you might find the good thread on them.

By the way, the $30 "chip" is a 33k 1/4 watt resistor tapped into the signal wire and power wire for the IAT sensor ( happen to be pins 1 & 2 on the maf connector)

 

which, by the way, is like 5 cents at radio shack.

NOT that I recommend this AT ALL - pretty dumb actually. just tricks your computer into thinking that the intake air is colder than it is, and wastes your gas.

 

"... the $30 "chip" is a 33k 1/4 watt resistor tapped into the signal wire and power wire for the IAT sensor ( happen to be pins 1 & 2 on the maf connector)... just tricks your computer into thinking that the intake air is colder than it is... ."

A real chip would do something useful, like run more ignition advance. This would require premium fuel to avoid knocking, but would give more power.

 

Actually, this "chip" does just that.

It fools the ecu into thinking that the air is cooler, like at start up.
It not only adds fuel, it sees the air as cooler ( 3.3 k 1/4 w = 50 degree out side temp), but advances your timing by 5 degrees. This is where they claim the 20 hp comes from.

But like we have seen , the ecu will correct itself after awhile (just like the more expensive piggy-back systems , not saying all piggy-backs just some)

I tested it on my car and had my laptop plugged into the obdII connector to see what the resistor did to clear up what alot of people that never tried it were saying. they do work, for awhile until the ecu catches up. Next run of tests will be to try and fool the o2 sensor to get the ecu to leave the mod settings alone. going to try a wideband as well .

the next series of test will happen after testing the tbs a little longer.

 

up wat bout a haltech, i saw an xb sold on ebay claiming that haltech was used to allow for no reset of the ecu under boosted conditons.

 

It would be nice if say Hypertec or one of the other compaines would do a proper power upgrade for the xB. They prolly feel there wouldn't be enough demand for such a product. So Sad!

 

I took a look at Haltech, and it might be a very good thing if you could get their "Wideband Lambda (AFR) Sensor Controller" to be used without one of their ECU or piggy back systems. Adding something like that could very well solve the problems associated with most piggy backs that have been tried on the xB. I think it only works on their piggy back and stand alone ecus right now though. (At least the way this total layman understands it.)

I just don't see it being economically viable to invest $1100 + Accessory cost for a piggy back or stand alone system. Then again, do you want to invest $300-$600 for a system that kind of works? Or $1100+ in something that does work. (Maybe. I guess it is yet to be proven on the xB.)

I have a feeling a certain shop in sunny Southern California might just have an answer as to how a Haltech plays with an xB ECU pretty soon.

And Jethro, I don't know that I would waste my time with Hypertech if they had a programmer. Their reputation is sketchy at best. Not as bad as Jet though. Superchips, I would probably give some consideration, but I just don't see it happening. I have talked with reps from Unichip personally as well. They just don't seem to have a desire to do anything for the xB though.

 

in the VW word a chip is one of the 1st mods most ppl do. i came here to xB land was sad to see no options. someone needs to get on that! the vw 2.0l engine had chips for ~100 that would add 10hp.

 

Apples : Oranges

I don't ever see a "chip" happening for the xB. The model is being discontinued, and the ECU is just too dang smart for the chip companies to crack using traditional plug and play methods.

Our only options at this point are piggy backs and stand alones. Even then, we probably won't see much if any difference without forced induction or significant (internals) modification.

 

(I cant wait till having a 1st gen xb is rare again)

Well I know of that xb that had A haltech unit, which i have absolutely no idea what system they had or even what the system was handling because it was being sold on ebay and by the time i realized what i had seen, and seening as I hadent heard of haltech, the auction was gone. So ya.