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Sun Feb 22, 2015 9:34 am

I just looked over my stash of ECUs. Most are Bosch 025 906 022.
With no suffix. I opened one up and its completely different inside from
what you are showing. One is a "D" version. Another is a completely
different manufacture.... I'm not sure there were many of these "d" versions.

Sun Feb 22, 2015 9:46 am

Short dream , actually didn't think that cktry would be there &not used. Where i worked, before i retired we had eprom read/write mach. At times one would bit change the program & not chancing a repeat i would prog a blank chip, dump, check &be thru. All chip programs at the time were stored on digital cass or floppy disc. At retirement several pieces of good test equipment put up 4 sale,went 4 whater the bjd was.Considered this machine & a dual trace scope, never thought i would have a need 4 them, scope yes. Things changed very fast then, big blue thought they 'invented' the pc, we had one in the early ' 70's, ran on on cobal, msoft came along a long time later. Better quit too much coffee.

Sun Feb 22, 2015 8:55 pm

1vw4x4 wrote: I just looked over my stash of ECUs. Most are Bosch 025 906 022.
With no suffix. I opened one up and its completely different inside from
what you are showing. One is a "D" version. Another is a completely
different manufacture.... I'm not sure there were many of these "d" versions.

Unfortunately what I am doing will only work with the "D" version of the ECU

Sun Feb 22, 2015 9:05 pm

The 022D version type outnumbers the original 022 types. 022 was used in 86/87 models and then the newer 022D replaced them. The later version was also sold as a spare part with just a Bosch part number so you won't find 022D on those.

Mark

DigiMatrix wrote:
Unfortunately what I am doing will only work with the "D" version of the ECU

Mon Feb 23, 2015 6:42 am

I have collected the D series components because they work better, my opinion.
There is also a silver label ECU that doesnt have the D, but has the same innards.
I have a few of these as well.
I think the silver series ECU was a remanufactured Bosch unit.
Both the D series and the Silver label allow for the chip to be upgraded, which would help out this project right?

I will assist with a loaner ECU if that helps the design and implementation of this work.
Pmail me about this.

Mon Feb 23, 2015 7:51 pm

insyncro wrote:
I will assist with a loaner ECU if that helps the design and implementation of this work.
Pmail me about this.

Thanks for the offer, but I have what I need now (I have a "D" ECU). I should be able to do more testing with my neighbor's 91 syncro. I already have the code working, and the adx file for TunerProRT. I just need to figure out to see how much work Bluetooth capability is to add. This way, all that will be required is a new chip, and an interface that connects to pin 20 and 12 volts.

Mon Feb 23, 2015 7:57 pm

Sweet.
Bluetooth will be a slick feature and I hope it pans out.

Wed Mar 04, 2015 11:13 pm

DigiMatrix wrote:
I just need to figure out to see how much work Bluetooth capability is to add. This way, all that will be required is a new chip, and an interface that connects to pin 20 and 12 volts.

Bluetooth is relatively easy. If you're spinning your own board the TI LMX9838 is a super easy to implement. Straight serial UART to BT with built in antenna. I've used it in the past and was surprised at how easy it was to get working. Of course, there are other socketted options out there if you're not doing a PCB but they're all basically UART to BT and fairly easy to get going.

Mike
91 Carat

Thu Sep 24, 2015 2:21 pm

Regarding the recent VW emissions scandal;
Can a Vanagon ECU be hacked or replaced to make CA inspections easier?

I bought a Vanagon in a county in Oregon where emission tests were not required. The Vanagon is presently stored in SoCal and I live in Hawaii. The Oregon plates are current and I'm not thrilled about trying to get a CA inspection and registration.

Aloha
tp

Thu Sep 24, 2015 2:55 pm

Tom Powell wrote: Regarding the recent VW emissions scandal;
Can a Vanagon ECU be hacked or replaced to make CA inspections easier?

I bought a Vanagon in a county in Oregon where emission tests were not required. The Vanagon is presently stored in SoCal and I live in Hawaii. The Oregon plates are current and I'm not thrilled about trying to get a CA inspection and registration.

Aloha
tp

I don't think a Vanagon's emission requirements are as strict as a late model car.

If it's beyond CA smog limits, it may be a warning sign & you might want to take a look at it to avoid problems down the road.

Thu Sep 24, 2015 9:31 pm

tjet wrote: Tom Powell wrote: Regarding the recent VW emissions scandal;
Can a Vanagon ECU be hacked or replaced to make CA inspections easier?

I bought a Vanagon in a county in Oregon where emission tests were not required. The Vanagon is presently stored in SoCal and I live in Hawaii. The Oregon plates are current and I'm not thrilled about trying to get a CA inspection and registration.

Aloha
tp

I don't think a Vanagon's emission requirements are as strict as a late model car.

If it's beyond CA smog limits, it may be a warning sign & you might want to take a look at it to avoid problems down the road.

The emission standards are the same for Vanagons.

"Inspection Requirements and Exemptions
California requires all vehicles to undergo a smog inspection EXCEPT:

Gasoline-powered vehicles model year 1975 and older.
Natural gas-powered vehicles weighing over 14,000 lbs. .
Diesel-powered vehicles that:
Are model year 1997 and older.
OR
Have a gross weight rating of over 14,000 lbs.
Electric vehicles.
Motorcycles."

My Vanagaon has had no problems other than PO hacks and I don't expect any unusual problems down the road. MPG and uphill performance would be a better indicators of problems than smog check results. I've read several posts about preparing for a CA smog check some of which specify getting the engine to a high operating temperature and not allowing cooling before the test. That might not be possible in the city and waiting in the parking lot for the test.

I was inquiring if something other than the OG ECU might make the testing easier.

Aloha
tp

Thu Sep 24, 2015 10:18 pm

Aloha Tom!

maybe lean the shit out of it right before passing the test? :twisted:

Thu Sep 24, 2015 10:21 pm

Tom Powell wrote: ....

The emission standards are the same for Vanagons.

......

I realize that '75 & up require a test. What I meant was the that the PPM limit on the smog test for an 80's car is "looser" than a newer car. My dad's 86 El Camino passes every 2 years no prob, & it has a finicky computer controlled Q-Jet. However, it would never pass if it was tested on the same standard as a car that was 5-10 years old.

In a way, a smog test will give you an idea of the health of your motor. To compare, I can tell you for sure that my high mileage 87 van would pass CA smog no problem, but I did replace a few key items (AFM, o2 sensor, plugs, & I just has the injectors rebuilt).

Give it a try. If you do fail, post the results. There's some techs here that will be able to diagnose it & give you a solution.

As far as hacking the ecu, it would be way easier to just retard the timing & crank up the idle setting - provided that they don't check it

Thu Sep 24, 2015 10:26 pm

No problems at present. I have valid Oregon registration and since I'm not a CA resident the DMV says I can't register it in CA. Just trying to gather some knowledge in case it's needed in the future.

Aloha
tp