Hi just joined, i have a 2011 4x4 2lt tdi auto, however the dreded electronics as in all modern cars are playing up, part of the reason i stay clear of cars post 2010 , but i do love my yeti and havent quite gave up on it yet. first problem is as most owners know when it comes to electronics most if not all garages cant fix them, even though they say they can. My question is can i bypass the egr (brain) my old morris miner ran great whithout a (brain) now my yeti does this (key not reconized) and wont start, I tried changing the brain, key barrel etc but then it just locked me out, It statrts sometimes but theres nothing worse when youve gone 10 miles down the road and it decides its not gonna reconize the key, surly there most be a way of ripping all this crap out and wireing the key straight to ignition, has any body on here done that?

16 hours ago, al1773 said:

surly there most be a way of ripping all this crap out and wireing the key straight to ignition

Won't do you a lot of good - the ECU controls whether the electrical fuel pump runs, the injector timing and amount (no mechanical injection pump here), the position of the actual throttle valve in the intake (yes modern diesels do have a "throttle" valve and there's no physical connection between the pedal and the valve).

 

So yes you can hot wire the ignition on, but the engine cannot run without the fuel pump running, fuel being injected or with an intake with the throttle valve stuck in the idle position.

thanks hot wire sounds good, anything to bypass the (key not reconized) is there any diagrams for this?

11 minutes ago, al1773 said:

thanks hot wire sounds good, anything to bypass the (key not reconized) is there any diagrams for this?

Without a recognised key the immobiliser won't be unlocked and the ECU functions will be enabled, so at best the engine will fire for a few seconds and then stop -so it will IMHO be a waste of time and effort.

I never get this kind of thinking, everything is electronic nowadays

 

If your house electronics go wrong then you get them fixed, you dont bodge and bypass - at least i hope not!

So why not do the same with your car?

 

If you are going to garages that cant fix or diagnose electrical problems, you are going to the wrong place... and as you have started swapping random parts out (without a clue of what youre doing) the car has security features to prevent theft and you cant just swap random immobiliser parts out.

 

Also an EGR is an exhaust gas recirculation system, not an ECU electronic control unit.

 

Long and short of it - no you cant bypass the immobiliser system easily, take it to a qualified mechanic that is able to fix it.

 

If we all had the logic of X worked years ago so why have Y, then we may as well get rid of all electronics and start hunting for food again???

38 minutes ago, PetrolDave said:

Without a recognised key the immobiliser won't be unlocked and the ECU functions will be enabled, so at best the engine will fire for a few seconds and then stop -so it will IMHO be a waste of time and effort.

thanks, looks like il have to let er go....

1 hour ago, al1773 said:

thanks, looks like il have to let er go....

 

1 hour ago, ApertureS said:

If you are going to garages that cant fix or diagnose electrical problems, you are going to the wrong place

As ApertureS says you need to go to a garage that knows what they are doing, I've always found that independent Skoda/VAG specialists have far more product knowledge than the majority of dealers, and there's no way a 2011 Yeti is beyond economical repair!

I have a spare icu, clocks, key and barrel, is there a reader that can be purchased that will reset codes and unlock icu that you know off?

5 hours ago, al1773 said:

I have a spare icu, clocks, key and barrel, is there a reader that can be purchased that will reset codes and unlock icu that you know off?

Do you mean ECU?

 

When you titled this thread ICU I assumed you meant some kind of reference to getting your Yeti working again without needing to go to the car equivalent of an Intensive Care Unit!

 

The ECU and instruments will need matching to the new keys, which isn't a job that normal diagnostic software can do, it usually needs a dealer-level piece of software such as ODIS.

11 hours ago, PetrolDave said:

Do you mean ECU?

 

When you titled this thread ICU I assumed you meant some kind of reference to getting your Yeti working again without needing to go to the car equivalent of an Intensive Care Unit!

 

The ECU and instruments will need matching to the new keys, which isn't a job that normal diagnostic software can do, it usually needs a dealer-level piece of software such as ODIS.

I get confused icu, dei, sdg,s, egr etc, im getting to old for this **** need to find an ole morris miner or what lol.

 

And people call ME a troll! 😄

TBH the key not recognised part could have been as simple as a the sensor loop on the key barrel playing up.  Id start by getting the diagnostics scanned and seeing if that's the issue before anything else and certainly before starting to swap out ECUs, clocks, key barrels etc.

Assuming this isn't trolling, what you need to do is put the original parts back and get some diagnostic gear connected.

 

It is possible to remove the immobiliser by having the engine ECU reprogrammed to no longer need it but this is not simple and will likely invalidate your insurance.

thanks, I think i might have found a guy who claims to know what hes doing! so il give em a shot at it, trolling? im in my 60,s I thought trolling was some kind of cosplay dressing up as shrek? lol.