10 mpg 3.2 - can’t find where the fuel is going

[mysocal911]

Originally Posted by Discseven

If indeed it is the chip, and I believe Dave knows this stuff inside & out, then it must be an inappropriate fuel/timing map in the chip that resides in the wonky ECU.
So, the wonky ECU could be "good" ...for the right engine, not for a 3.2.


Dave... Is the chip below the one you refer to that should be replaced:

Yes, that chip controls the fuel & timing maps! It designed for a different 911 3.2 market/application, NOT for the U.S.

A post up-thread provides the correct Porsche U.S. chip. Again, it's a 10 minute effort to change the chip, and then the DME ECM becomes a stock 1987 U.S. Porsche DME ECM.

[Discseven]

Blackstone Oil Analysis Report

Two samples were sent in at the same time. Was used oil from the case and fresh oil from Motul’s oil jug. Both samples were packaged in Blackstone’s provided, individual containers. I made absolutely sure the correct input sheet went with its related oil sample.

Received is one Report for the 2 paid for. With “Diesel Engine Oil” being noted as the “Oil Type & Grade” for this analysis... doesn't suggest a good fit. “Laboratory...” am thinking a high level of precision should exist in lab work & docs so there is no doubt in the skills applied.



“Comments…” Reading this it appears they know two samples were sent in for testing. But seems they’re not clear on what is used oil and what is new.

Below, their data for who knows what or whose oil---I show this only so their reporting format can be seen. I’ll be calling Blackstone later today to sort things out if that's possible. Will update.


.

[Discseven]

Originally Posted by mysocal911

Yes, that chip controls the fuel & timing maps! It designed for a different 911 3.2 market/application, NOT for the U.S.

A post up-thread provides the correct Porsche U.S. chip. Again, it's a 10 minute effort to change the chip.

Dave... thank you. Is it correct to say the ECU I have---with the chip therein---is NOT for a U.S. 3.2?
.

[Mr. Merk]

Interesting information starting on post #7

Question about Euro Carrera 3.2 DME

[mysocal911]

Originally Posted by Discseven

Dave... thank you. Is it correct to say the ECU I have---with the chip therein---is NOT for a U.S. 3.2?
.

Yes! Again, it's only the EPROM chip which defines the application/market. Once the "180" chip is changed to a "302",
the DME ECM becomes the U.S. version 911.618.111.05, 0 261 200 050

Please post an image of the sticker on your DME ECM.

[Mr. Merk]

I'm very interested in how a Euro chip would negatively affect his city MPG. His car isn't stock. We know it has cams and SSIs without catalytic converters. I don't recall seeing the compression ratio listed but we know it had machine and cylinder head work.

[mysocal911]

Originally Posted by Mr. Merk

I'm very interested in how a Euro chip would negatively affect his city MPG. His car isn't stock. We know it has cams and SSIs without catalytic converters. I don't recall seeing the compression ratio listed but we know it had machine and cylinder head work.

Post #173 indicates the Euro 180 chip causes a richer fuel mixture, i.e. poorer mileage.

Time for guessing is over!

[Steve W]

Originally Posted by mysocal911

It's a stock Porsche Euro chip.

Originally Posted by mysocal911

Yes, that chip controls the fuel & timing maps! It designed for a different 911 3.2 market/application, NOT for the U.S.

A post up-thread provides the correct Porsche U.S. chip. Again, it's a 10 minute effort to change the chip, and then the DME ECM becomes a stock 1987 U.S. Porsche DME ECM.

Originally Posted by mysocal911

Post #173 indicates the Euro chip causes a richer fuel mixture, i.e. poorer mileage.

Time for guessing is over!

Yeah ok, that's not a Euro chip. It's a stock chip commonly found in in all US and Canadian 85-86 3.2s.

Originally Posted by mysocal911

The thread has reverted to guessing again! Yes, a simple OEM U.S. chip (32K #302 24 pin EPROM, $225) change will solve the problem, a 10 minute effort.

You'd be selling they guy something he doesn't need. The 302 chip is 4k, not 32k ... and $225?

[mysocal911]

Originally Posted by Steve W

Yeah ok, that's not a Euro chip. It's a stock chip commonly found in in all US and Canadian 85-86 3.2s.



You'd be selling they guy something he doesn't need. The 302 chip is 4k, not 32k ... and $225?

Those other than construction workers (selling performance chips) know what a 4K chip (bytes - 32K bits) means!
The 082 DME ECMs used a 8K chip (bytes - 64K bits).

Laughable isn't it?

The OP's problem is NOT the DME ECM electronics, it's the chip being used! The 180 chip is not the correct U.S. OEM chip provided in 911 3.2 vehicles sold in the U.S. by Porsche dealers in '80s.
Selling the OP anything other than a simple EPROM chip change is a waste of money!

This is the Pelican Parts Forum. Let's post honest info to its members.

[proporsche]

Steve W.is here ,let me get a beer;-))))))) was wondering where you were so long Steve;-)

Ivan

[Steve W]

Originally Posted by mysocal911

Those other than construction workers (selling performance chips) know what a 4K chip (bytes - 32K bits) means!
The 082 DME ECMs used a 8K chip (bytes - 64K bits).

Laughable isn't it?

The OP's problem is NOT the DME ECM electronics, it's the chip being used! The 180 chip is not the correct U.S. OEM chip provided in 911 3.2 vehicles sold in the U.S. by Porsche dealers in '80s.
Selling the OP anything other than a simple EPROM chip change is a waste of money!

This is the Pelican Parts Forum. Let's post honest info to its members.

Construction worker - I guessing you're implying me? I'm not but I often dress like one and I do have several that currently work for me and sometimes I wish I were them as they seem to have a much easier life than me. Those that have known me a long time, know that for 35 years I have been a builder and real estate developer and currently have an extensive portfolio of residential and commercial properties that I've developed, own, and manage. Looking for an apartment for rent, or space for lease in a class A shopping center in an ultra prime area of Los Angeles? You can find me and some of my listings on Loopnet or CoStar. Or perhaps you'd be interested in purchasing a home in the hills of La Canada, or one by the sea with an unrestricted 180 degree of the ocean? I could by your guy, but that would be off topic.

Back to the subject at hand, I don't know why you continue to insist the 180 chip is a Euro chip. I have dozens of them here pulled out of US boxes from probably the 2000 3.2 DME's I've had serviced or repaired over the years. I'm so certain of this I'd be willing to bet pink slips on your 3.2 against any of my cars. Wanna bet?

[mysocal911]

Karl, I spoke to these guys. They'll send you a no-charge 302 U.S. Porsche OEM DME ECM chip;

https://www.systemsc.com/

[SkunkWorks]

Originally Posted by mysocal911

Karl, I spoke to these guys. They'll send you a no-charge 302 U.S. Porsche OEM DME ECM chip;

https://www.systemsc.com/

"Spoke to these guys"... Isn't that your own company?

[ant7]

This could be interesting!
Ant.

Originally Posted by Steve W

Construction worker - I guessing you're implying me? I'm not but I often dress like one and I do have several that currently work for me and sometimes I wish I were them as they seem to have a much easier life than me. Those that have known me a long time, know that for 35 years I have been a builder and real estate developer and currently have an extensive portfolio of residential and commercial properties that I've developed, own, and manage. Looking for an apartment for rent, or space for lease in a class A shopping center in an ultra prime area of Los Angeles? You can find me and some of my listings on Loopnet or CoStar. Or perhaps you'd be interested in purchasing a home in the hills of La Canada, or one by the sea with an unrestricted 180 degree of the ocean? I could by your guy, but that would be off topic.

Back to the subject at hand, I don't know why you continue to insist the 180 chip is a Euro chip. I have dozens of them here pulled out of US boxes from probably the 2000 3.2 DME's I've had serviced or repaired over the years. I'm so certain of this I'd be willing to bet pink slips on your 3.2 against any of my cars. Wanna bet?

[Discseven]

Originally Posted by mysocal911

Karl, I spoke to these guys. They'll send you a no-charge 302 U.S. Porsche OEM DME ECM chip;

https://www.systemsc.com/

Dave... Thank you. I assume this entails soldering out of the existing chip, then soldering the replacement in. If so, I can do it. Pm sent you.
.

[proporsche]

Originally Posted by Discseven

Dave... Thank you. I assume this entails soldering out of the existing chip, then soldering the replacement in. If so, I can do it. Pm sent you.
.

the chip is just pushed in and out for the later model you do need to solder

Ivan

[mysocal911]

Originally Posted by Discseven

Dave... Thank you. I assume this entails soldering out of the existing chip, then soldering the replacement in. If so, I can do it. Pm sent you.
.

As you can see from your own image, the EPROM chip has a socket, so it's a simple process to remove & replace the chip.
You need to remember the orientation of the chip in the socket (notch of the chip).

[ant7]

Just for a bit of clarity on the chips fitted to Euro, or in my case UK DME/ECU.
Hope this helps.
Ant.

[mysocal911]

Originally Posted by mysocal911

Yes! Again, it's only the EPROM chip which defines the application/market. Once the "180" chip is changed to a "302",
the DME ECM becomes the U.S. version 911.618.111.05, 0 261 200 050

Please post an image of the sticker on your DME ECM.

Where is the image? This is to match the present EPROM PN (xxx 180) with the Porsche part number on the lid.

[Discseven]

Originally Posted by mysocal911

Where is the image? This is to match the present EPROM PN (xxx 180) with the Porsche part number on the lid.

Dave... there's not a single Porsche/Bosch sticker on exterior of the box anywhere. Only one is the one I put to indicate the date it was tested and by who. Anything inside you want referenced?
.