[dombromd]

Actually, I am looking at Autozone print out it has P0201-04, P0245-06 . The lady just told me the code P0245, because it get the P0245 on the top of Definition.

Code P0245 indicates that the Turbo Wastegate Solenoid 'A' circuit had low voltage for a predetermined period of time. Found a local junk yard has a ECU for $150.

Maybe I'm a scrooge, but I'd want to verify inputs and outputs before calling a customer's ECM bad. $150 isn't bad, particularly if you can program and marry it to the car yourself.

 

[okcrum]

There's a TPIC46L02 chip in the ECU that is a 6 channel power FET controller. 4 of its channels go to the injector power FETs and 1 goes to the charge air solenoid valve power FET. This is a weak link in these ECUs. I've marked it in this pic from Hus_sho.

EDIT: added link

 

[htowniman]

There's a TPIC46L02 chip in the ECU that is a 6 channel power FET controller. 4 of its channels go to the injector power FETs and 1 goes to the charge air solenoid valve power FET. This is a weak link in these ECUs. I've marked it in this pic from Hus_sho.
View attachment 276175
EDIT: added link

Is there a company use better chip to rebuild the ECU? I will go this weekend to pick up a ECU from a 2006 2.0T, which is older than mine. Hope it work.

 

[okcrum]

ECU repair shops have a poor reputation here. My assumption is that most of them don't really know how to work on SMD (surface mount) parts. When I last looked into it, a repair at a big shop (that fixed all types of ECUs) would cost about as much as the used ECU you're looking at.

EDIT:

Is there a company use better chip to rebuild the ECU?

The funny thing is that there's another of the same chip way in the back corner of the same board that never or rarely fails. So it's not likely that it's the chip itself.

 

[Joshpaine70]

There a guy down in Australia (a SAAB technician of long experience) who has come up with a kit for heat isolation of the 9-3 ECU (gasoline engine). There's a you-tube video on it. It's a self-fit job and costs less than $150 USD (price on the video is in Australian dollars is approx. $70). Worth a look and also opening up the louvres on the black plastic engine cover which are almost over the top of the ECU.
I've had similar codes but will find out tomorrow if it is just the leak from #1 injector when the engine is hot. Everything else (including ECU) has been tested!

 

[SethB]

Refurbs are junk in my experience, mostly fails out of the box or within few months.
Used one are the way to go.
Tech2 will not clone ur tune, it can program a used ecu with stock tune.
Try canflasher and obdlink SX To clone ur tune.

My ECU from ebay has lasted like 4 years or something. Its really a crap shoot.

 

[Hus_sho]

4 years is not bad at all considering the prices are usually around 100$ .
Imagine if u paid 400$ and it crapped out after only one year

 

[Joshpaine70]

My father-in-law's 07 Aero sedan is still on its original ECU but his car has only done 60k (miles), he's almost 84 but still loves driving it. We reckon the chafing may have either been due to poor placement of the loom in the factory or a poor accident repair which necessitated shifting the loom slightly.
My 9-3 is an April 2003 that I've had since 2007 (guess where that came from) and has done almost 80k miles. Apart from this leaking (weeping) injector on #1 in the last few months I haven't encountered any other continuing issues, although until I could actually smell the fumes I didn't figure there was a leak and had tried swapping various other electrical components (and the ECU was sent away for testing and came back with a clear bill of health).
If you are in an area that experiences high summer temperatures and you get heat soak after switch off and the car is a darker colour which will absorb more heat through the hood, then heat isolation of the ECU and improved airflow should help to prolong its life.

 

[okcrum]

The thermal theory of failure is interesting, but it can't explain why this chip fails and an identical one an inch or so away does not.

 

[Hus_sho]

Beside the fact that i live in one of the hottest region on the planet all year long, and we havnt seen that chip failing much . Go figure

 

[Joshpaine70]

What functions are controlled/governed/monitored by this particular chip in the ECU? It would be interesting to know. I'm not saying it would answer all the questions but it might lead into something else.

 

[Hus_sho]

Fuel injectors + bypass solenoid i think.
But this chip is not the only failure point of the ECU .

 

[Joshpaine70]

OK. That's interesting. I'm getting the P0686 and P0687 combo + varying injector codes (but not all 4 at the same time) and the turbo solenoid.
However, the codes only kick in when the engine is up to temperature and either worked hard or drops to an idle.
There is a weep of fuel from #1 injector which will crest a value difference for the ECU to have to counter, which it does by limiting the fuel rail, boost and load on the engine (ACC compressor is switched out) to lessen the load on the engine.
I'm having the leaking injector swapped for a good used one today and we will see what we will see...
As I mentioned, the ECU was tested back in July and no faults were found (£60), though whether they test it in replica heat soak conditions is another matter.
More anon.

 

[Joshpaine70]

*create 🙃

 

[Hus_sho]

Well, these codes u got are another way these ecus fail, i dont know how they test these ecus, but in my experience the only way to test it, is to install it in another car and drive with it for a while .

 

[htowniman]

Just give you guy some update, I have called 10+ junk yard only two has the 9-3 2.0T, both ECU were not there.

I am looking at ebay, some seller put the item 03-06 ECU parts number 55353231/55352688 and 07-11 ECU part number 55567225. Are they all compatible and just with update part number?

 

[okcrum]

My father-in-law's 07 Aero sedan is still on its original ECU but his car has only done 60k (miles), he's almost 84 but still loves driving it. We reckon the chafing may have either been due to poor placement of the loom in the factory or a poor accident repair which necessitated shifting the loom slightly.
My 9-3 is an April 2003 that I've had since 2007 (guess where that came from) and has done almost 80k miles. Apart from this leaking (weeping) injector on #1 in the last few months I haven't encountered any other continuing issues, although until I could actually smell the fumes I didn't figure there was a leak and had tried swapping various other electrical components (and the ECU was sent away for testing and came back with a clear bill of health).
If you are in an area that experiences high summer temperatures and you get heat soak after switch off and the car is a darker colour which will absorb more heat through the hood, then heat isolation of the ECU and improved airflow should help to prolong its life.

Not to say there are no thermal failures, or failures that eventually manifest as thermal. What must be considered is that the parts in ECU are rated to +125°C, so if you're seeing thermal ECU failure it would be prudent to check the engine bay cooling system for correct operation.

 

[Hus_sho]

Just give you guy some update, I have called 10+ junk yard only two has the 9-3 2.0T, both ECU were not there.

I am looking at ebay, some seller put the item 03-06 ECU parts number 55353231/55352688 and 07-11 ECU part number 55567225. Are they all compatible and just with update part number?

Depend on What method are you using to clone/program ur ecu ?

 

[htowniman]

Depend on What method are you using to clone/program ur ecu ?

I am planning to use the video you post to clone my ECU.

 

[Hus_sho]

So to clone using the Trionic can flasher then the part number doesnt matter.