Search found 1671 matches
- Mon Sep 16, 2019 3:02 am
- Forum: Tuning the EEC....
- Topic: GUFB/A3M1 decel fuel leanout - running log
- Replies: 4
- Views: 290
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.
- Thu Jul 25, 2019 3:33 am
- Forum: EECGeeks
- Topic: Proposed GUFB patch tweak
- Replies: 33
- Views: 1922
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.
- Tue Jul 23, 2019 3:51 am
- Forum: EECGeeks
- Topic: Proposed GUFB patch tweak
- Replies: 33
- Views: 1922
- Sun Jul 21, 2019 4:56 am
- Forum: EECGeeks
- Topic: Proposed GUFB patch tweak
- Replies: 33
- Views: 1922
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.
- Sun Jun 30, 2019 9:35 am
- Forum: EECGeeks
- Topic: Proposed GUFB patch tweak
- Replies: 33
- Views: 1922
Re: Attn: CGrey8 - proposed GUFB patch tweak
The flaw has nothing to do with the location of the payload list.
- Sat Jun 29, 2019 1:28 pm
- Forum: EECGeeks
- Topic: Proposed GUFB patch tweak
- Replies: 33
- Views: 1922
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.
- Sat Jun 29, 2019 12:30 pm
- Forum: EECGeeks
- Topic: Proposed GUFB patch tweak
- Replies: 33
- Views: 1922
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.
- Fri Jun 14, 2019 1:29 am
- Forum: EECGeeks
- Topic: Serial control of the Burn2 and Jaybird
- Replies: 7
- Views: 538
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...
- Wed Jun 12, 2019 11:56 am
- Forum: EECGeeks
- Topic: Why auto disassembly is tough
- Replies: 310
- Views: 71726
Re: Why auto disassembly is tough
Sorry, I meant POPP not POPW above (that's a different instruction!).
- Wed Jun 12, 2019 8:31 am
- Forum: EECGeeks
- Topic: Why auto disassembly is tough
- Replies: 310
- Views: 71726
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...
- Fri May 24, 2019 4:22 am
- Forum: Tuning the EEC....
- Topic: weird numbers
- Replies: 22
- Views: 3454
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.
- Thu May 02, 2019 11:19 am
- Forum: Tuning the EEC....
- Topic: Nominal AFR
- Replies: 4
- Views: 468
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...
- Wed Apr 24, 2019 2:59 am
- Forum: Tuning the EEC....
- Topic: De-clutch stall - intermittent
- Replies: 1
- Views: 292
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...
- Mon Apr 15, 2019 8:22 am
- Forum: Hardware Discussions
- Topic: Unknown pcm identification
- Replies: 17
- Views: 1588
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.
- Mon Apr 15, 2019 8:00 am
- Forum: Hardware Discussions
- Topic: Unknown pcm identification
- Replies: 17
- Views: 1588
Re: Unknown pcm identification
What is the engine? I am curious why the injector firing order has been changed.
- Sun Apr 14, 2019 1:06 pm
- Forum: Hardware Discussions
- Topic: Unknown pcm identification
- Replies: 17
- Views: 1588
Re: Unknown pcm identification
SMD-333 is used on the '94-'95 5.0 L manual transmission Mustangs.
- Thu Apr 04, 2019 6:45 am
- Forum: Software Issues & Support
- Topic: SW support for old shift master inc tuner board?
- Replies: 3
- Views: 515
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.
- Thu Mar 07, 2019 6:43 am
- Forum: Software Issues & Support
- Topic: Installing BE 5.122
- Replies: 4
- Views: 588
Re: Installing BE 5.122
'A' is closest; the BE executable was installed rather then the full installer program.
- Tue Mar 05, 2019 4:42 am
- Forum: Software Issues & Support
- Topic: AEM compatability with Binary Editor
- Replies: 1
- Views: 397
Re: AEM compatability with Binary Editor
If you are just using the wideband controller's 0-5 volt output as an input into the eec to datalog via an unused A-D line (such as the EGR) then BE does not care what controller you are using.
- Mon Jan 21, 2019 4:07 pm
- Forum: EECGeeks
- Topic: Back end engineering software from the factory
- Replies: 10
- Views: 1935
Re: Back end engineering software from the factory
The calibrations were supplied as binary files to the chip manufacturers, this is described in the ROM identification section of the strategy documents.
- Wed Jan 02, 2019 9:33 am
- Forum: EECGeeks
- Topic: LA3 Code call for OL Fuel help
- Replies: 17
- Views: 4692
Re: LA3 Code call for OL Fuel help
One of the options the LA3 ecu uses to determine when to go into open loop fuelling is a simple rpm vs air charge function together with a global air charge multiplier. It probably looks like it always goes into open loop at 3000 rpm because the air charge value at 3000 rpm is less than a sixth of t...
- Thu Dec 06, 2018 10:18 am
- Forum: EECGeeks
- Topic: SAD disassembler progress
- Replies: 22
- Views: 2984
Re: SAD disassembler progress
Have a look a couple of lines above, at 0x4456, where a different entry point to the subroutine is used.
- Thu Nov 08, 2018 3:19 am
- Forum: EECGeeks
- Topic: Modern day potential of J3 devices beyond TwEECer and QH
- Replies: 48
- Views: 9065
Re: Modern day potential of J3 devices beyond TwEECer and QH
I also wonder why Ford didn't simply do a LDW to get both registers in one hit Bits 8-15 of some special function registers are only accessible using a word sized read or write of an even valued memory address. This feature of the MCU looks like it's only used on the 8065 (for example, see the HSO ...
- Fri Oct 19, 2018 2:53 pm
- Forum: EECGeeks
- Topic: Why auto disassembly is tough
- Replies: 310
- Views: 71726
Re: Why auto disassembly is tough
It's not obfuscation, just a neat way of saving 8 state times. I doubt you could automate commenting this out in the disassembly due to its subtlety.
- Fri Oct 19, 2018 6:12 am
- Forum: EECGeeks
- Topic: Why auto disassembly is tough
- Replies: 310
- Views: 71726
Re: Why auto disassembly is tough
This is just a bit of cute coding by Ford, in this particular instance using SHRDW has saved using SHRW twice (i.e. separately on 0x38 and 0x3A) as the value is 0x38 is not double word sized and the lowermost bits of 0x3A are zero.
- Mon Oct 15, 2018 4:10 pm
- Forum: Tuning the EEC....
- Topic: FN725A high temp above 254F will it wrap to -256F
- Replies: 9
- Views: 1635
Re: FN725A high temp above 254F will it wrap to -256F
Even if the temperature at the sensor is greater than 254 deg F the ACT value is limited in the code to a maximum of 254 deg F.
- Mon Oct 15, 2018 3:00 pm
- Forum: Tuning the EEC....
- Topic: FN725A high temp above 254F will it wrap to -256F
- Replies: 9
- Views: 1635
Re: FN725A high temp above 254F will it wrap to -256F
Providing the first and last input (Y axis) values for the function are set to the maximum and minimum limits of the input variable then there is not going to be a problem as the function's interpolated output value will be limited to be within those values in the function. Problems which occurs in ...
- Wed Sep 26, 2018 1:44 am
- Forum: EECGeeks
- Topic: Why auto disassembly is tough
- Replies: 310
- Views: 71726
Re: Why auto disassembly is tough
I believe the 4TAB ecu has an 88k rom so I suspect both of the bin files you have are not correct.
- Thu Sep 13, 2018 4:29 am
- Forum: Tuning the EEC....
- Topic: CDAN4 issue with DFSO or ??
- Replies: 17
- Views: 2840
Re: CDAN4 issue with DFSO or ??
I've just issued an updated definition that includes the DFSFLG flag so you will be able to see if DFSO is causing your issue.
- Wed Sep 12, 2018 3:46 am
- Forum: Tuning the EEC....
- Topic: CDAN4 issue with DFSO or ??
- Replies: 17
- Views: 2840
Re: CDAN4 issue with DFSO or ??
Are you sure it's going into DFSO?