Is there anyway to reset the Adaptive Values on a 2000 Disco without going to the dealer and spending an arm and a leg?

Had an enormous vacuum leak from my valley gasket that i fixed, now everything is running great but the LTFT on both banks is stuck at +25 from the leak being there for so long. I'm tired of getting engine codes that pop of from this, because the problem no longer exists.

Iv read that the ECU can learn but not un-learn unless its reset with testbook at the dealer.

Any help would be much appreciated!

 

Call around and see if you can find someone with a test book, or something like an Auto Logic with Rover soft ware, which is what I had used on my D2 last year, takes all of 5 minutes to do.

 

Thanks for the quick reply Mike! I'll call around tomorrow and see what I can come up with.

 

A Launch X431 will work as well. That's what I use at my shop for Rover and Volvo and it works really well. Volkswagen and Audi are my specialty so I keep the factory tool for them but can't see paying all that money for a Testbook that would take years to pay itself.


Cheers,

Aaron

 

Another one that will reset values is the Bearmach Hawkeye. We have use this tool to reset our adaptive values after the CKP sensor was replaced and again after the O2 sensors were replaced.

2003 Discovery 130K with High Miles Service complete.

 

Disconnect both battery cables and touch them together. Leave them touching each other overnight. Reconnect battery next day and everything will be reset. Codes, adaptations, etc...

If you are in no real hurry, the car will eventually learn on its own. Watching the fuel trims slowly go back towards 0 is a good way to know you fixed the problem.

 

So do you have to have these reset after O2s are replaced?

 

LR Teckniker -

At what point in your procedure would the ECU and BCU drop their sync and require a Testbook (or similar) to re-sync?

 

Never encountered that. Immobilizer info is usually stored a little differently then fault codes, mixture adaptations, transmission adaptations, etc... and "shouldn't" be vulnerable to that type of reset.

Of course, anything is possible.