How do you remap the CA18Dett chip for a Z32 AFM?

Post by **MarkTT** » Mon Mar 29, 2004 12:38 am

as above?

Post by **Notchbackca** » Mon Mar 29, 2004 12:38 am

http://www.boostcruising.com/silvia/eprom.asp

I did it for my car, its pretty straigh forward, if you don't have access to an eprom programmer then a powerFC might suit you better

Post by **paul_s13** » Mon Mar 29, 2004 12:38 am

Notchbackca wrote:http://www.boostcruising.com/silvia/eprom.asp

I did it for my car, its pretty straigh forward, if you don't have access to an eprom programmer then a powerFC might suit you better

Agreed, powerfc would be better if you don't have an eprom burner because you can then make easy adjustments on the rollers.

I needed to tweek the map a bit when I changed over to the Z32 afm, but I did have a wideband O2 and eprom emulator.

Post by **MarkTT** » Mon Mar 29, 2004 12:38 am

Hi Paul,

Did you get my emails?

Post by **paul_s13** » Mon Mar 29, 2004 12:38 am

Yes mate

Post by **r34 gtr** » Mon Mar 29, 2004 12:38 am

uh, or you could use a safcII or safc. they have that capability too and are far, far less expensive. my cat could figure out how to set it its so easy, which is a plus.

- tim

Post by **slw240sx** » Mon Mar 29, 2004 12:38 am

MarkTT wrote:as above?

send me 25$ and ill give you mine. lol

Post by **Porschephile** » Mon Mar 29, 2004 12:38 am

You can get an eprom burner for only about $100-140 at lots of electronics places (like Fry's). Also, that "romeditor" is 100% free. That link has instructions on how to remap the ecu for a larger maf. Really, as far as I understand and according to those instructions, you are just changing a constant value that determines the MAF size. You just do a couple easy calculations and you're done. That's cheaper and better then a "bandaid" like an SAFC, IMO. Hell, the guy even has schematics on his page to build an eprom burner, and that wouldn't cost you more than $30-50. I see most safc/II's going for $300-400.

Post by **~*IdIoT bOx*~** » Mon Mar 29, 2004 12:38 am

Porschephile wrote:You can get an eprom burner for only about $100-140 at lots of electronics places (like Fry's). Also, that "romeditor" is 100% free. That link has instructions on how to remap the ecu for a larger maf. Really, as far as I understand and according to those instructions, you are just changing a constant value that determines the MAF size. You just do a couple easy calculations and you're done. That's cheaper and better then a "bandaid" like an SAFC, IMO. Hell, the guy even has schematics on his page to build an eprom burner, and that wouldn't cost you more than $30-50. I see most safc/II's going for $300-400.

My thoughts exacly. I downloaded the program and took a look at it. Adjusting the curves is the hard part. As for editing for different MAF, injector size, speed limit, and rev limiter; in my eyes its as "Porschephile" has said.

Thanks for posting that "Notchbackca." I'm going to play around with that when I have a chance. That burner is an afternoon project for me.

This is a cheaper way to tune compared to the SAFC. And I'd rather it be a little harder instead of spending 400 dollars.

Andrew.

Post by **slw240sx** » Mon Mar 29, 2004 12:38 am

I bought my burner for 60$ , a industrial eprom eraser for 25$ and the eproms them selve for less then fifty cents a peice.

i have the bin file for the z32maf and z32maf 440s injectors and for 550 injectors. burning takes all of 60secs only thing im missing is a emulator and wideband o2 , which i will have soon as the car is back togther

Post by **Notchbackca** » Mon Mar 29, 2004 12:38 am

slw240sx, where did you get the burner and eraser, I am just using my schools, but those sound like a steal

Post by **biosehnsucht** » Mon Mar 29, 2004 12:38 am

you can build a burner, the erase is a bit more trouble. you can build one (hard to find parts) or leave it in the sun for a few days..

reader/burners:http://www.zws.com/products/epromr2/ (easy)http://www.zws.com/products/epromr3/index.html (works theoretically better for newer windows versions, more complicated, altho I just noticed is not complete)

eraser:http://www.mikeg2.freeserve.co....html

emulator:as for emulators I've had a few ideas for cooking one up but I don't have the time/money to try it right now, but my current plans call for a nicely sized SRAM, an AVR microcontroller, a CPLD or possible FPGA (hopefully I can fit the memory control logic into the CPLD as FPGA = $$$), a couple of 8 / 16-bit latches / tristate buffers, FLASH memory (for storing saved program) and a few assorted other bits and peices for giving it power etc.

If I have the time/money to actually make a working version I'm pretty sure that it could be built for < $100 in parts (incl PCB).. but like I said, too much to consume time/money right now.. I'll have to stick to EPROM erasing/burning tuning.

Post by **slw240sx** » Mon Mar 29, 2004 12:38 am

i got the burner on ebay, and the eraser at a place here in town called mendelson's . its like a DIY wet dream , the place has more then a million square feet of just old junk lol . stadium lights, slot machines the size of uhaul trucks, and 300,000sq feet of old electrionics stuff,

Post by **datsunboy** » Mon Mar 29, 2004 12:38 am

slw240sx wrote:I bought my burner for 60$ , a industrial eprom eraser for 25$ and the eproms them selve for less then fifty cents a peice.

i have the bin file for the z32maf and z32maf 440s injectors and for 550 injectors. burning takes all of 60secs only thing im missing is a emulator and wideband o2 , which i will have soon as the car is back togther

any chance of sending me those bin files for the Z32 maf and the Z32 maf and 440cc inj?

I'm hoping to buy a Z32 maf soon....and some 440 injectors later on

that'd be awesome if you could

cheersDan

Post by **slw240sx** » Mon Mar 29, 2004 12:38 am

yeah let me get them off another pc around here and ill email them .

Post by **datsunboy** » Mon Mar 29, 2004 12:38 am

cool!

Post by **datsunboy** » Mon Mar 29, 2004 12:38 am

my email is [email protected]cheers

Post by **biosehnsucht** » Mon Mar 29, 2004 12:38 am

hook me up too! [email protected], I can't / won't use em yet but I want to have as many collected as possible, just in case

Post by **datsunboy** » Mon Mar 29, 2004 12:38 am

anybody know the part number for the new EPROM to buy for the CA computer?

Post by **slw240sx** » Mon Mar 29, 2004 12:38 am

yeah but its outside , ill go look in the morning.

Post by **biosehnsucht** » Mon Mar 29, 2004 12:38 am

ifyou mean what kind of EPROM you need to program it, a 27c128 is what you need. 27c256 will work also, you'll only use half the memory (to be safe, write the same program in both high and low halves). the 27c256's extra address line is where the program pin on the 27c128 is, but thats no issue as the ECU never tries to program it.

Post by **datsunboy** » Mon Mar 29, 2004 12:38 am

been doing a bit of looking around....and can't really find many 27C128's.....but lots of 27C256'sI found out that the EEPROM equivilent is a 28C256.which means obviously that it is electronically erasable rather than UV.I found a site that said that if you only need 128kb....and you have a 256 chip.....then to either earth or have a 5V switchable power to * pin.....which allows you to write 2 different bin files to it...and switch between the 2:ylsuper can anyone confirm this?

also have found 2 differnt people that sell the 28C256....one sells them for....US$5.9 each - FuturLechttp://www.futurlec.com/Memory/28C256.shtml

and the other for NZ$69.7 - Radio Spareshttp://www.rsnewzealand.com/cgi-bin/bv/browse/ ... oid=247613

what would be the difference between them?is it just because N.Z buys a lot less of these than USA?

Cheers guys

Post by **biosehnsucht** » Mon Mar 29, 2004 12:38 am

That is another option, it is pin compatible as far as the ECU cares. But if you want Flash (29C256) instead of EEPROM that is NOT COMPATIBLE, FYI.

The reason xxC128 is hard to get is that its small, useless by today's standards, and its cheaper for the storage quantity to use larger ones even if you don't need it all. xxC256 is going the same way, lucky xxC512 is also pin compatible for read-only situations.

If you make yourself a daughtercard to hook to the ECU and put the actual (E)EPROM or FLASH device on, you can hook switches to the extra address lines and get multiple banks of selectable ROM tunes (must use pull-up/down resistors, whichever appropriate, as you want the address lines to get 0 or 1, if it's floating (neither) then no telling which bank it'll decide to read from).

Post by **NeedCAforS13** » Mon Mar 29, 2004 12:38 am

damn, how the hell do you guys learn all this... I've been so lost since about half way through this thread

Sean

Post by **biosehnsucht** » Mon Mar 29, 2004 12:38 am

I have no social life, and have been using computers since I was 5, teaching myself almost everything I know

And I know alot - by which I mean, enough to know that while I know more than 90% of other people I know next to nothing. AHAHA

Post by **datsunboy** » Mon Mar 29, 2004 12:38 am

lol...I had no idea about any of it till I had a read on the net....just look around...lots of info

I'm looking at going for the **C256 ( doesn't really matter it's Eprom or EEprom )...and doing what that guy said....hooking a switchable 5V to that pin. I don't need to make a daughter board for this do I?was thinking of just bending up a pin of the socket and attatching a wire to it for the switch?

Post by **Notchbackca** » Mon Mar 29, 2004 12:38 am

https://www.allelectronics.com/index.html

these guys sell the 27C128 for 3 bucks a piece... but buy a few cause they charge 3 bucks for shipping :p

Post by **biosehnsucht** » Mon Mar 29, 2004 12:38 am

bah at $3 each get some c256's on ebay for $10 or so for like 30-50 ahhaha

for the switch, you need to either have a switch that connects one side to either ground or +5V on the other side, or use pull up/down resistors. You don't NEED a daughterboard but it's alot cleaner, yeah you can just bend up a pin and solder to that but thats ghetto and asking for problems.

Post by **datsunboy** » Mon Mar 29, 2004 12:38 am

by one side...you mean one pin?I have the page that says what number....

Post by **GoofyATX240** » Mon Mar 29, 2004 12:38 am

Good god this htread makes me feel stupid. Even if i looked all this up id still be lost lmao.

How do you remap the CA18Dett chip for a Z32 AFM?

How do you remap the CA18DET chip for a Z32 AFM?

Re: How do you remap the CA18Dett chip for a Z32 AFM?

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