Search found 1684 matches

by sailorbob
Thu Jun 04, 2020 5:38 am
Forum: Tuning the EEC....
Topic: CDAN4 PIP's and Displacement
Replies: 8
Views: 115

Re: CDAN4 PIP's and Displacement

In addition to the protective grease there is usually a clear conformal coating on the circuit board that needs removing from the J3 connector.
by sailorbob
Wed Jun 03, 2020 6:51 am
Forum: Tuning the EEC....
Topic: CDAN4 PIP's and Displacement
Replies: 8
Views: 115

Re: CDAN4 PIP's and Displacement

Is the J3 port clean and the socket on the QuarterHorse clean and undamaged?
by sailorbob
Tue Jun 02, 2020 5:33 am
Forum: Tuning the EEC....
Topic: CDAN4 PIP's and Displacement
Replies: 8
Views: 115

Re: CDAN4 PIP's and Displacement

Firstly I would get the battery replaced in your QH. It is not worth the trouble of having to reload your tune everything you want to run it. Secondly you should use the base calibration from your V6 ECU as a starting point for your tuning. There are too many differences between the V6 and V8 calibr...
by sailorbob
Thu Mar 26, 2020 1:52 am
Forum: Tuning the EEC....
Topic: Tuning CBAZA for Cold Start Drive Engagement
Replies: 11
Views: 939

Re: Tuning CBAZA for Cold Start Drive Engagement

Those three functions are used for modifying the 'Desired Idle Air Flow' (aka DESMAF) value.
by sailorbob
Wed Mar 25, 2020 6:47 am
Forum: Tuning the EEC....
Topic: Tuning CBAZA for Cold Start Drive Engagement
Replies: 11
Views: 939

Re: Tuning CBAZA for Cold Start Drive Engagement

See FN811, FN851 and FN852 for the proportional term, derivative modifier and proportional modifier functions used in the idle speed control "rpm control" or "rpm lockout" modes.
by sailorbob
Sun Mar 22, 2020 4:54 pm
Forum: Tuning the EEC....
Topic: Tuning CBAZA for Cold Start Drive Engagement
Replies: 11
Views: 939

Re: Tuning CBAZA for Cold Start Drive Engagement

There's no need to bother with the ALT_CAL_FLG as the ALT_CAL_DIST parameter is set to zero in the stock U4P0 calibration.
by sailorbob
Fri Mar 13, 2020 10:04 am
Forum: Tuning the EEC....
Topic: Tuning CBAZA for Cold Start Drive Engagement
Replies: 11
Views: 939

Re: Tuning CBAZA for Cold Start Drive Engagement

For question (1) the answer is yes, they can all get used but it depends on the ECT, transmission type and neutral / drive state for some of them.
by sailorbob
Wed Feb 12, 2020 3:24 am
Forum: EECGeeks
Topic: quick question about indexed ops
Replies: 7
Views: 610

Re: quick question about indexed ops

Short indexed offsets are signed. Long indexed offsets are unsigned. The final paragraph in section 2.2.1 of the Intel 'Using the 8096' document is wrong when it says long indexed offsets are added as a 2's complement value to the register value to form the address. This is confirmed by section 3.2....
by sailorbob
Tue Feb 11, 2020 6:14 am
Forum: EECGeeks
Topic: quick question about indexed ops
Replies: 7
Views: 610

Re: quick question about indexed ops

Yes, I am aware that long indexing is used for other registers as well as the zero register. As your initial post was about the addresses when using the zero register I was responding to that specific issue. It can't be address [1f298] (i.e. with data bank) as that's ROM, unless it's a specialist ch...
by sailorbob
Tue Feb 11, 2020 3:40 am
Forum: EECGeeks
Topic: quick question about indexed ops
Replies: 7
Views: 610

Re: quick question about indexed ops

If the 2nd byte of the instruction is even then it is short indexed, if the 2nd byte is odd then it is long indexed. I can only recall seeing the zero register being used with long indexing and it's an unsigned index.
by sailorbob
Sat Feb 01, 2020 2:42 pm
Forum: EECGeeks
Topic: ROM1 address
Replies: 19
Views: 1281

Re: ROM1 address

Disabling the checksum routine is not recommended as you will not know if the ROM becomes corrupted. It is far better to recalculate the ROM_TO value.
by sailorbob
Fri Jan 31, 2020 6:31 pm
Forum: EECGeeks
Topic: ROM1 address
Replies: 19
Views: 1281

Re: ROM1 address

The ROM_TO value is the compliment of the checksum so, in every practical sense, it can be considered to be the checksum.
by sailorbob
Fri Jan 24, 2020 4:54 pm
Forum: EECGeeks
Topic: ROM1 address
Replies: 19
Views: 1281

Re: ROM1 address

Yes, the 'ROM2' address is at the next address.

The GUFA 'ROM1' address is at 0x7858.
by sailorbob
Mon Sep 16, 2019 3:02 am
Forum: Tuning the EEC....
Topic: GUFB/A3M1 decel fuel leanout - running log
Replies: 4
Views: 659

Re: GUFB/A3M1 decel fuel leanout - running log

The DFSFLG flag is only used to disable the transient fuel compensation so that fuel is not added when the PW is meant to be zero.
by sailorbob
Thu Jul 25, 2019 3:33 am
Forum: EECGeeks
Topic: Proposed GUFB patch tweak
Replies: 33
Views: 3352

Re: Attn: CGrey8 - proposed GUFB patch tweak

That's the theory. However, over the years, I have been sent several calibrations that contain the patch code but no payload items that people have read from their tuning device.
by sailorbob
Tue Jul 23, 2019 3:51 am
Forum: EECGeeks
Topic: Proposed GUFB patch tweak
Replies: 33
Views: 3352

Re: Attn: CGrey8 - proposed GUFB patch tweak

Chucko wrote:
Sat Jun 29, 2019 1:04 pm
The original code has the same behavior.
My apologies, the original has this same flaw too. Sloppy coding :roll:

BTW, jne and jnz are the same instruction.
by sailorbob
Sun Jul 21, 2019 4:56 am
Forum: EECGeeks
Topic: Proposed GUFB patch tweak
Replies: 33
Views: 3352

Re: Attn: CGrey8 - proposed GUFB patch tweak

The original flaw is still in there, look at what you are loading into 0x0014 on the first pass through.
by sailorbob
Sun Jun 30, 2019 9:35 am
Forum: EECGeeks
Topic: Proposed GUFB patch tweak
Replies: 33
Views: 3352

Re: Attn: CGrey8 - proposed GUFB patch tweak

The flaw has nothing to do with the location of the payload list.
by sailorbob
Sat Jun 29, 2019 1:28 pm
Forum: EECGeeks
Topic: Proposed GUFB patch tweak
Replies: 33
Views: 3352

Re: Attn: CGrey8 - proposed GUFB patch tweak

The original code does not have this flaw, look at what you are loading into 0x0014 on the first pass through.
by sailorbob
Sat Jun 29, 2019 12:30 pm
Forum: EECGeeks
Topic: Proposed GUFB patch tweak
Replies: 33
Views: 3352

Re: Attn: CGrey8 - proposed GUFB patch tweak

Your modification risks crashing the code as the check for the zero marker will be missed if there are no datalog payload items. You are also reducing the number of payload items.
by sailorbob
Fri Jun 14, 2019 1:29 am
Forum: EECGeeks
Topic: Serial control of the Burn2 and Jaybird
Replies: 7
Views: 1002

Re: Serial control of the Burn2 and Jaybird

My understanding of it is: n = number of bytes to read (starting from the address defined by MMSB, MSB, LSB) MMSB = bank ( 0, 1, 2 or 3) MSB = high byte of address LSB = low byte if address It will probably baulk if you try to read more bytes than there are between the start address and the end of t...
by sailorbob
Wed Jun 12, 2019 11:56 am
Forum: EECGeeks
Topic: Why auto disassembly is tough
Replies: 310
Views: 82942

Re: Why auto disassembly is tough

Sorry, I meant POPP not POPW above (that's a different instruction!).
by sailorbob
Wed Jun 12, 2019 8:31 am
Forum: EECGeeks
Topic: Why auto disassembly is tough
Replies: 310
Views: 82942

Re: Why auto disassembly is tough

The interrupts are not necessarily enabled after the subroutine has finished being executed. The PUSHP instruction saves the PSW register to the stack and bit 15 is the 'interrupt enable' bit. The later POPW instruction restores the PSW register to the condition it was at the point when it was saved...
by sailorbob
Fri May 24, 2019 4:22 am
Forum: Tuning the EEC....
Topic: weird numbers
Replies: 22
Views: 4252

Re: weird numbers

The ROM_TO checksum value does not identify a strategy, it identifies the calibration. The FIXSUM parameter is used by Ford to ensure that the ROM_TO value is unique.
by sailorbob
Thu May 02, 2019 11:19 am
Forum: Tuning the EEC....
Topic: Nominal AFR
Replies: 4
Views: 785

Re: Nominal AFR

The 'Nominal_AFR' parameter (regardless of whether it is defined as a calibrateable parameter in a strategy or exposed as a hack) is the value the ECU uses to calculate the amount of fuel needed to achieve a stoichiometric A/F ratio for gasoline (I cannot recall seeing any stock calibration using an...
by sailorbob
Wed Apr 24, 2019 2:59 am
Forum: Tuning the EEC....
Topic: De-clutch stall - intermittent
Replies: 1
Views: 490

Re: De-clutch stall - intermittent

It's dying because it's overfuelling. When it gets close to the desired idle rpm, if you look near ET 57.224 shortly after the spark changes from 'idle feedback at minimum clip' to 'idle feedback', the injector pw increases and keeps on doing so until the engine stalls. You need to identify what's c...
by sailorbob
Mon Apr 15, 2019 8:22 am
Forum: Hardware Discussions
Topic: Unknown pcm identification
Replies: 17
Views: 2600

Re: Unknown pcm identification

For the sake of moving four more injector wires I think that is preferable to playing around with the injector firing order and injector output port.
by sailorbob
Mon Apr 15, 2019 8:00 am
Forum: Hardware Discussions
Topic: Unknown pcm identification
Replies: 17
Views: 2600

Re: Unknown pcm identification

What is the engine? I am curious why the injector firing order has been changed.
by sailorbob
Sun Apr 14, 2019 1:06 pm
Forum: Hardware Discussions
Topic: Unknown pcm identification
Replies: 17
Views: 2600

Re: Unknown pcm identification

SMD-333 is used on the '94-'95 5.0 L manual transmission Mustangs.
by sailorbob
Thu Apr 04, 2019 6:45 am
Forum: Software Issues & Support
Topic: SW support for old shift master inc tuner board?
Replies: 3
Views: 857

Re: Help with old shift master inc tuner board

I am guessing from the lack of response that no one knows. I suspect that Paul's EEC Editor may well be the only software to support that hardware.