EECTuning.org

Jman

I wasn't sure where to post this but....the search feature is not available very often when I try to use it. Regular search or the advanced search from quick links gives me the same message about not being available and try again later. Is it something wrong on my end or is this a known issue? Thank...

Jman

I was asking further up in this thread: 6. There's a 5 bit ROM read-only input port built into these chips. The address of it changes depending on which chip and which address range is being used. Does anyone know if it's ever used, or what for, on any EECs? JSA answered: 6. ROMPORT I've seen it in ...

Jman

Insomnia got me and I unsoldered the leadless glass diodes off of an A9S and measured them. Physically they are 2.62m OD around the glass and 5mm long end to end. I pulled off six of them and they are all identical. I tested the forward bias voltage with two different bench meters and got .59 on one...

Jman

I don't have experience with this, but I think you could test out the switch with an ohm meter. I would unplug it from the Quarterhorse just to be safe. You can ohm out the end of the connector so as to be testing the rotary switch and the cable at the same time. If that test doesn't give good resul...

Jman

I've been wanting to try this for a while and will try out using TIP102 transistors for the missing injector drivers. I've harvested heat sinks, 36v 5watt Zeners, and 470ohm base resistors from an A9S so if there is any difference in the injector waveforms with the TIP102 transistors I'll know it's ...

Jman

Is Batch fire having all 8 injectors opening simultaneously? I'm finding conflicting information out there between batch and bank injector firing. From my tracing out the base drive circuits of the injector driver transistors I've noticed 4 double diodes (sot23 packages) linking a small transistor t...

Jman

The A9L doesn’t have a crank sensor separate. It’s incorporated in the Dizzy I believe that’s what the 8 windows in the shutter wheel inside the dizzy are for. Skinny windows being for cylinder number 1.

Thank you
J.W.S.

Jman

Question for the original poster heeke, based on your comment below. Now I have the Intake with injectors and fuel rails in the car without the engine. Plug everything in and rotate the distributor. The injectors fire all at once, one time per rev. I'm curious if you mean literally all 8 injectors f...

Jman

I found a 5.0 V Voltage Regulator and Supervisory Circuit for Microprocessors that seem similar to Ford's 7015FB chip. It even has the 4 center pins grounded but maybe that is just an older trick for dissipating heat out of it. I'm NOT suggesting this is compatible as a replacement, just saying seem...

Jman

Thank you Sailorbob I did some more reading, and it shocks me at how much effort Ford put into allowing the EEC to keep the engine operable during a failure of the 8061 processor. It seems to me the DUCE chips are almost as complex and possibly just as at risk of a failure. I can only imagine they w...

Jman

I found what I think is the 7015FB in the Ford EECIV pocket reference on page K5. The pocket reference only shows the pinout and calls it PSIC. I think this is it based on what I traced out in the above post, but I could not find any other information describing what it does or how it functions. I'm...

Jman

Does anyone know what the 7015FB 16 pin DIP IC is exactly? So far, I think its main function is to drive the large PNP transistor (04S75) that creates the 5 VDC power inside the EEC. I was tracing down the chip enable lines from the hex buffers that drive the injector transistors in a A9S EEC and fo...

Jman

I don't think you will be able to know for sure you have matched the specs because a datasheet for the 04S74 doesn't seems to exist. I found a couple 04S74's in some old EECs I have laying around and put them into my cheapy transistor tester, and the 04S74 is a NPN Darlington transistor. I would rec...

Jman

This Data I/O S22 with the FORD 56K adapter is also able to electrically erase and program the 87F66. The 87F66 is an EEPROM that operates just like the UV erasable FORD ROMs. If anyone out there knows what EEC I could harvest one out of I would love to hear about that. I’ve looked inside quite a fe...

Jman

I have only burned a few times each of the D8763 and 87C66 after I assembled the S22 adapter and then used the BURN1 with the adapter I made for it to verify the Data burned matched. I would do a compare of the file saved from the BURN1 buffer, with a Hex editor and they matched. The Data I/O burn p...

Jman

Attached are the last couple pics of my Moates BURN1 adapter project that lets me put a loose FORD Eprom directly in a Zif socket for reading only. These are pictures of the back side of my BURN1 adapter PCB and the 3d printed Cover.

Thank you
J.W.S.

Jman

Attached are pictures of the Adapter I made to use the Moates BURN1 for READING ONLY of loose FORD Eproms. This has a 24 pin ZIf and is for reading the D8763 or the 87C66 chips directly. I select the F2E Ford EEC-IV Reader as the Supported chip type in the Moates Flash-&-Burn utility. I did this mai...

Jman

Attached are a couple pictures of one of my early versions of the Ford 56K adapter used on the Data I/O S22.

Thank you
J.W.S.

Jman

This is the S22 Data I/O programmer that I have, it's using firmware made for the FORD engineers back in the 80's that allows this copy of the 56K adapter to work. You can see in the third picture my last version of the adapter in a 3d printed cover. I also made an adapter board for a BURN1 to allow...

Jman

I now have the ability to burn D8763 and 87C66 original ford EPROMS using a data I/O programmer from 1985 with a special adapter originally design for FORD. I can elaborate more if anyone is interested.

Thank you
J.W.S.

Jman

I think the BEB I'm looking at is just what would be saved if I made some changes and saved using a token. When I have use database checked and open calibration then type in A9L it opens up a stock calibration. I can use the Find tool in here and there is no Z_PUMPP found. I have found it in the XLX...

Jman

I looked around and it seems that fuel pump prime is not in the A9L.BEB but I did see checksum scalars in there and for the stock A9L, the base is 0x2000 end is 0x9FFE with checksum being ECDE. Looking around in an untouched A9L.BIN I can see at 0x0A and 0x0B is a DE EC respectively. I tried to high...

Jman

Chucko, This hack interests me and I see 0x30f6 is 00 and 0x30f7 is 04. 400 in HEX equals DEC 1024 so if I replace the 04 at 0x30f7 with 16 it would be 1600 HEX and that equals DEC 5632 divide that by 1024 and I get 5 seconds of fuel pump prime. Based on the comments I think if the engine conked out...

Jman

I'm quickly noticing with my squirrel like thought patterns, I'm jumping down one rabbit hole after another, not keeping a consistent focus on figuring out one thing at a time. At this moment I'm starting at ground zero and looking at the beginning of the 22CA.BIN just looking at the first few progr...

Jman

Thank you Tvrfan, that information helps a lot. I was searching for address 22CA at one point not knowing that was another BIN file. I'll do some digging around now that I have this big chunk of info and see how things look to me.

Thank you again
J.W.S.

Jman

tvrfan, I want to understand this better and have a lot of questions so I'm starting a new topic. I downloaded the AA.BIN and the XDT2.BIN to look at. I use HHD Software's Hex Editor Neo to open up the BIN file and search around. I noticed your address references appear to be the using the point of ...

Jman

JSA , I missed your question in there . All ROM files start at 0x2000, originals won't have 0x0000 to 0x1fff in the file. Opening an unpadded ROM file in a hex editor will show file address starting at 0x0000, but actual address is 0x2000. Most bin file have 0xFF, what pattern would you be referring...

Jman

Tvrfan,

Where do I find your 'AA' listing? I browsed around the github link in your signature line but didn't find it.

Thank you
J.W.S.

Jman

I've opened up two EECIVs both with cal code 8AP and they have different ROM chips, one is Intel and the other is Texas Instruments so I would expect the numbering to be different, but it doesn't come close to anything in the Appendix A of the EEC-IV Custom Integrated Circuits Architecture and Hardw...

Jman

Thank you TVR Fan, I've got a decent collection of EECIV's and have been looking inside many of them and reading through the EEC-IV Custom Integrated Circuits Architecture and Hardware Reference. It's interesting that some of the custom FORD eproms were designed to be able to select different addres...

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Re: FORD Custom EPROMs and Address range information

Re: A9L/A9M Schematic

Re: QH tune switch not working right

SFI-MA13 for use with GUFB

Re: A9L Sequential or batch fire?

Re: A9L Sequential or batch fire?

Re: A9L Sequential or batch fire?

Re: 7015FB inside the SFI-MA12 and other EECIVs

Re: 7015FB inside the SFI-MA12 and other EECIVs

Re: 7015FB inside the SFI-MA12 and other EECIVs

7015FB inside the SFI-MA12 and other EECIVs

Re: Injector transistor obsolete?

Re: Can I clone/copy a EEC-IV eeProm 87C66

Re: Can I clone/copy a EEC-IV eeProm 87C66

Re: Can I clone/copy a EEC-IV eeProm 87C66

Re: Can I clone/copy a EEC-IV eeProm 87C66

Re: Can I clone/copy a EEC-IV eeProm 87C66

Re: Can I clone/copy a EEC-IV eeProm 87C66

Re: Can I clone/copy a EEC-IV eeProm 87C66

Re: Fuel pump prime time pid?

Re: Fuel pump prime time pid?

Re: Fuel pump prime time pid?

Re: Understanding how Checksum range is figured out

Re: Understanding how Checksum range is figured out

Understanding how Checksum range is figured out

Re: FORD Custom EPROMs and Address range information

Re: FORD Custom EPROMs and Address range information

Re: FORD Custom EPROMs and Address range information

Re: FORD Custom EPROMs and Address range information