Hello guys,
I've been wanting to play with crome and been wanting to burn a base map for myself. I've ordered the eprom burner2 and installed crome on my computer. Anyways, theres one thing I don't understand about crome and tuning.
Heres the senario... I have an h22 swap into em1. I have a chipped p61 (93 GSR ECU), now I want to burn an h22 basemap to run my swap. However, when I open the crome program... bottom left saids P30 ... then I click new and chose for example, p28, then bottom left change to Base p28. Question is how do I get it to say Base p61 cause my ecu is a p61. Also what is the difference between map dump and map .bin?
I got a copy of an h22a basemap ".bin" but how would I put it into my p61 ecu?
I read this article like 100 times... http://xenocron.com/install/CromeGuide.htm but just couple things I just dont get it. Thanks in advance for anyone that can shine some lights on me. THANK YOU!

 

it says p30 in the bottom left b/c that means that particular program was made in the p30 code. I would pretty much copy/paste all of the maps I used into the p30 code and then change the scalars apropriately. You won't find a .bin that says p61 in the bottom left corner, they'll only ever say p28, p30 or p72 b/c those are the 3 different code bases.

All you have to do to put a .bin onto a chip, is put the chip in the burner and use the "flash and burn" software that comes with the burner. Then clear the chip (if you can) and "load file to buffer" (using the h22.bin) then program the chip. Its that simple.

 

yes, and it has been discussed many times, that most of the H22 Bins out there SUCK. I usually recommend people using a GSR map and adding a ton of fuel, getting a wideband, then scaling it back.

 

Ok thanks alot. I prolly missed or didn't understand that concept while reading the write up. Well I'm still not quite get everything that you guys said yet (sorrie don't yell at me ) So, I can use the "p30" codes in my p61? or do i have to get one of the following ecu p28 p30 p72?

Also can you elaborate on your reply JUST a bit PLEASE?

" All you have to do to put a .bin onto a chip, is put the chip in the burner and use the "flash and burn" software that comes with the burner. Then clear the chip (if you can) and "load file to buffer" (using the h22.bin) then program the chip. Its that simple." Ok I have the burn2 chip burner here and I have the crome program here. I clicked New and chose... p30 b16a2 map... Now I opened up the h22.bin file USING crome.. I then copied the "fuel and ignition" numbers from the h22 .bin over to the base p30 (exactly like the guide told me to... BUT I got lost after that..

1: So, I have a chipped p61 (93 integra gsr ecu..) can I simply just copy the fuel map over from the h22 .bin burn it on a chip and run my car like that?

2: If not... How would I know what to adjust or change IN ORDER to use my p61 ecu.. I just dont want to spend money and buy another chipped p28 or p30 ...

3: Now lets pretend that one day I got a p13 or X ecu chipped... which base map do i use? DO i just have to copy the fuel/ignition value from ANOTHER .bin that I want on there AND THATS it? How would I know


Thanks thanks thanks so much in advance for your patient and advises

 

Yes you can use p30 code on a p61 ecu.
1. You can but I wouldn't recommend it. You should tune the car using a brand new map.
2. Nothing needs to be changed.
3. Use a p72 if you want to keep intake air butterflies, otherwise the p61 is fine.

 

i've used the p30 code in pretty much EVERY chippable obd1 ecu to run pretty much every setup you can imagine.

I also agree that using some random .bin you find on the internet may not be the best idea, especially without the use of a wideband to see whats going on with the AFR's.

You're p61 is fine if you don't want to make use of the IAB's (like mtber said), but I would also start with a p72 map and tune from there. In which case you won't need to copy paste anything b/c the p72 codebase is solid....not meaning the p72 program is good for h22s as it is, just meaning the p72 codebase is ok to work with, so no need to copy/paste everything into p30 code.

I guess my instructions could've been a little more detailed regarding putting a program on a chip.
So make the program using crome, then save it as "myh22.bin" (or whatever you want). Close crome, open "flash and burn" the software that should've come with the moates burner. Make sure to have the type of chip you're using selected in the "Supported Chips" box, I use 27sf512's, so thats what I have selected. Then select "Erase Chip". Then select "Load File to Buffer" and find where you have saved "myh22.bin" and select that file. Then select "Program Chip". You'll see the blue progress bar go across and will get the message "PROM I/O succeeded" if everything worked right.

 

i usually hit "Verify" afterwards too.

 

ive heard this twice so far in here about using flash and burn, why not just use crome to burn your map? isnt it much faster?

 

It is, yea. But I like flash and burn. I dont know why.

 

Thanks for the replies. I do understand the part about burning the chips and the copying fuel ignition map over. I just didn't understand about the whole "codebase" and stuff. Ok for example so basicall there are three codebase p28, p30, p72 right? Now how would I know which "codebase" to load into WHICH chipped ecu? Yes I can use the p30 codebase for my p61 but what if i changed to the p13 ecu... THEN which codebase would suit me? Also, how would i know when to copy JUST the fuel/ignition over instead of having to fix EVERYTHING. Its hard to explain my confusion... sorrie, thats why I could'nt really find a DIRECT answer.

 

The usdm p61, p30, p28, p72, p75 ecu are all based on the same ecu platform with small differences such as a knock board, intake air butterfly system etc.

You can use p28 code on a p30 ecu vise versa etc.

You don't want to use p30 code on a p13 or p13 code on a p30.

If you are keeping intake air butterflys, use a p72 base code on a p72 ecu.

 

Wow thanks, now I'm beginning to see where this is going. Ok, now how about this:

1. how would i know when to copy JUST the fuel/ignition over instead of having to fix EVERYTHING?

2. how do I translate/calculate the value on the crome fuel map into a/f ratio number?
All I see is "10, 17, ... etc ... all the way until 572" for example. How would I know which number equals 14.7 a/f or 14.0 a/f etc.

 

If people knew that, widebands wouldnt be needed.

 

hmm... soo if I were to buy a wideband and tune it myself... how would that work?

 

you edit the values in the map until you see the a/f reading you want on the wideband. That is basically all that a/f tuning is.

Its very simple, yet complex when people don't understand the whole "idea" of tuning yet.

IMO if you have no idea.. take it to someone who does.

OR

if you want to invest time in reading and research start here

forum.pgmfi.org and www.msefi.com

 

Thanks, that really helps

 

Hmm.. I just downloaded a p13 stock .bin map and Im trying to copy it over to the p30 codebase using crome 1.5. But when I try to change the scalar of the p30 trying to match it to the p13 .bin... i can't change it.. ONLY the second row could be changed.. but the rest after I can't change it... I'm following xenoncron instruction..

http://xenocron.com/install/CromeGuide.htm

I'm at this step....
"Double Click the scalar you want to change and type in the new number."

the value couldn't be changed

 

What are you trying to convert over?

To be honest the only thing you can convert over from the P13 bin to the P30 basecode is the ignition timing tables and rev limits etc.

The fuel tables are of a different format and can't be transferred. So if you want a map that will run a H22.. just start off with the P72 bin and transfer those timing and fuel maps into the P30. That will get you a lot closer.

You don't have to go around changing all the scalars.. because it really won't matter that much in the longer run.

 

So I basically could just run a p72 .bin on my h22? (I really don't need the secondary bufflies because I have the skunk2 IM just a FYI)

Ok, I basically just want a SAFE and reliable basemap to run my h22 swap for a while.... I'm broke from doing the whole swap and everything so I can't get it tune for a while... I thought if i could figure out how to do this, I could buy myself some times before the dyno tuning. I don't wanna run just any map because it might not be right for my car and blows up my motor.

Well maybe this will help, some specs of my swap....

I'm doing an h2b swap into my em1 h22a obd1... the motor is stock except for the skunk2 intake manifold so no secondaries. Its running the obd2 290cc saturated injectors from the 97+ prelude. I have a p61 chipped ECU with a b16a BASEMAP. Now I bought the BURN2 eprom burner and want to chip my p61 to run my h22 as close to stock p13 as possible. (when I say stock I meant like same a/f ratio, ignition timing etc) So I don't run to lean and BLOW the motor. Thats all.

Can't I just...... burn the p13 .bin directly to an EPROM chip and stick it in the p61 and call it a day?? (Won't work I know, just a bit frustrated and confused... sorrie)

Any help would be great... I'm a newbie Thanks

 

If you want a safe map to start on, consider purchasing one from a local tuner or online vendor.
Always use a wideband to monitor everything. Always sync your distributor timing.

 

I've found using crome to burn the chip doesn't always work.
It takes me literally 30 seconds to open flash and burn then burn the program to the chip.

If you don't know what you're doing, save yourself the money, hassles and headaches and possibly the new engine and just pay someone that does know what they're doing to tune your car. Imagine spending all that money obtaining a wideband, laptop, crome license, emulator, and a datalogger and not be able to get the car tuned well, or blow it up?

I personally have gone to peoples houses/shops to use "their equipment" to tune their cars b/c they can't get it right or even get anything to work, on several occasions now. I say save your money and pay someone to do it. It will definately be cheaper than buying all the stuff yourself. Besides you're paying for someones knowledge and experience when you pay someone to tune your car, not just for the use of their equipment and their time.

I'd prolly just purchase a program from a reputable seller/tuner (like mtber) for a h22 for the time being in the OP's case.

 

If he already has the burner program I am sure if he just asks someone might supply him a basemap to get him atleast up an running.

 

Well, I guess you guys are right. I'll just buy the basemap chip from phearable mtber then. Then go to a tuner when I recover some $$. Its just I WANT to learn how to do it. Like doing the swap, I learned from people like you guys here on h-t that guides me and reading tons and tons threads. Now I have successfully did the swap. Its not that I don't want to buy it from a tuner or go to a tuner, its about the experience of doing it myself and LEARNING. Unfortunately, tuning isn't like doing a swap I guess. I just didn't get what went wrong...I guess just the process isnt clear to me.

By the way, I do have most of the equipment unfortunately...I got:
1. Laptop
2. Burn2 chip burner
3. Free crome version
4 Datalogger
5. Emulator

Didn't get the wideband yet...

 

I just shot you a PM.

 

I got it ttyl thanks