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Got a URL to Advanced? I'll try and chase it up, as a bigger-than-OEM (for W58 anyway) spec will solve my problems.

Hi Projectsupra, I tried sending a PM but your mailbox is full. Could you tell me the part number for this slave cylinder as I am looking for a bigger-than-OEM bore diameter to suit a W58. Thanks.

Awesome. Yeah, as the other guys mentioned, M-REL, IGSW and +B / +B1 are required, including relays. Without the proper M-REL setup, you may encounter two problems: 1) incorrect ISCV control. 2) ECU will feel like it's "learning" each time. The problem will be bigger (eg: settings aren't...

For those that can't wait to get their engines tuned, the following quality and professionally designed full-control hardware is available: * Haltech - http://www.haltech.com/ * Vipec - http://www.vi-pec.com/ * Link - http://www.linkecu.com/ * Autronic - http://www.autronic.com/ * Wolf -...

OK... let me try again :-) * RPM min: 800 (where / how is this represented by the MCU?) * RPM max: 6000 (where / how is this clamp value defined? or is clamp value slightly higher and defined outside of the table?) * RPM interval: 400 (where / how is this value derived?) * IGN raw min: 0 * IGN...

What I meant was, what are the units in the ignition table of the ECU? because the raw ignition values go up to 200. And are the load units in the same interval? In other words, how is it divided in the table?

What are the units of the ignition table? 0.25? What are the units of the load? airflow / map voltage? or is it converted to L/sec / kPa? I was going to measure the ignition timing vs pressure but the hardware / software I thought would do it, is "limited" by the software. So that's now...

I'm lost by what you mean. The value is sent as an 8 bit 5V ADC value. Whether it is converted to C or F, that's up to the OBD reader to do. I'm happy to validate the voltage at 25C, 50C, 70C against the 1JZ-GTE PowerFC unit that I have. But it's low on my priority list. "Easier" to find...

And for some eye-candy: the toyota OBD reader I built just over 4 years ago.

Here is another piece of reverse-engineered information (from OBD stream and toyota technical repair manual) in regards to ECT. These numbers are approximate, so may be off by a few degrees or more, especially below 25C or above 90C. I do know based from my OBD reader that closed-loop is...

Here's an image from a toyota workshop manual that I used 4-5 years ago: I suspect #9 is NBo2 #1 voltage, and #10 is NBo2 #2 (eg: on V6 / V8 toyota engines) voltage. Couple of notes on the JZX90 (6980) rom: * OBD handler is at EEB1 / EECE. * OBD list of addresses is at FBFE. * UNKNOWN #10...

I've written up a preliminary datasheet-like document describing the toshiba 8x MCU instruction set / opcodes. http://subversion.assembla.com/svn/3SGTE_ECU/toshiba-8x-datasheet.pdf If there's any errors, or any additional information that can be added, please send them my way (i'm happy to...

Cool. Thanks. Couple of more questions in regards to the 8X MCU: * Fractional division or integer division? Where is the result stored? and the remainder? * Arithmetic shift or logical shift? * What size (8 bits or 16 bits) argument is used by opcode 0x39 (st s, arg) and 0x3B (st y, arg)?

woops. my bad. I'm trying to get my head around the instructions but getting confused too much. I've used as much as possible information provided by M68HC11 reference manual (mostly the same instructions but totally different op codes) but still am stuck (or not 100% sure) about some...

I think I found the OBD-like code section in the 1JZ-GTE rom image. Points of interest: * Starts @ 0xF047. * Array of function pointers (jump addresses) @ 0xF0DA, length 10, 16-bit wide. Apart from that... I could be totally wrong!

Script updated to v0.002. All but 2 instructions have been done. They are div and blea. Several auto-generated comments may need to be refined. Please find any bugs or issues :) Enjoy!

I've made an assembly auto-commenter script in Perl. You can download it from http://trap.mtview.ca.us/~xk/pics/supramania/toshiba-8x-comment.pl It creates very basic C-like (or logic-like) statements as comments. It removes human error from creating these statements by hand. It's 50%'ish...

Some more information on the format of the OBD-like stream. It's 8N2. So 1 start bit, 8 bits of data, 2 stop bits. data is pushed out LSB first. The beginning of the OBD stream is 16 bits of high state. then 4 unknown bits (0100 for 1JZ) then 13 frames (8N2) containing data. Also for the...

The tables could be divided into two sections. I know it's done in some aftermarket ECUs (eg: HKS). so between 0-2850 it could be every 250 RPM, then after that it could be 500 RPM. I will be able to obtain the scale of the ignition table, aswell as the real ignition values, hopefully by next...

Looks like the LOAD number is based on the ADC value of the MAP sensor in 16 bits. Here's the calculations for two different Toyota MAP sensors: Stock MAP sensor for 1JZ / 2JZ: PIM = 5246*V - 3785 At BAP, I know my 1JZ reports 2.626 V (based on the reading from the PowerFC using stock...