hello a wile back i bought a custom chip from pcm for less and i wanted to do some custom tuning on it i read the chip and saved it to file by the way this is 27sf512 chip then today i burned the chip from file and put it in and runs bad and theres no speedeter going it will barely get up in rpms
now i dont have the orignal from pcm for less any more i burned over it
Also i put anthor chip i had done 2 years ago in there and i got speedoter is working so what is going on the way im burning these please help

 

You didn't give much to go on as to what ECM you are using or which burner. However, if it is a '165 then the BIN needs to be quad stacked to fit in the '512 chip. If a '7730 ECM then the BIN needs to be double stacked.

Instead of stacking you can also offset burn the BIN into the chip. This is where the BIN is placed at the top of the chip.

Also, when you read the chip originally there are several ways of doing that.

RBob.

 

I have 7730 91 camaro prom code aujp.I think i read chip wrong from the get go. its a burn 1 from moates
Everything in my tunerpro software for my chip lookes fine. you say to stack them how do i do that.
And also when i load the bin chip address look good
chip start to end
008000
00FFFF
buffer start
000000
007FFF

 

Your burn1 chip/buffer values look good. With that you don't need to do any stacking. Although it can be done within Tuner Pro or with a copy command at the command line prompt.

Best bet at this time is to grab a fresh unmolested BIN (AUJP) and burn that. Then look for the SES blink at key-on.

At key-on, engine-off the SES should light up, bink off, then light up solid. If it doesn't blink off then don't bother turning the key any further. Without the blink the ECM is in limp mode.

If the SES flashes rapidly then the checksum is incorrect. And again, the ECM is in limp mode.

Make sure that you are placing the chip into the socket in the correct direction: notch toward the outside of the MEMCAL.

Once you get a stock BIN to work, then move on to the modified BIN or wherever you are starting out. And again, look for the SES blink every time you turn the key.

RBob.

 

i think i got it im going out to car here shortly but what i forgot to change com port speed to 7200 and latency to 1 instead of 16
i burned chip earlier before i changed these setting and saved then i changed them and loaded it into tunerpro and it was all messed up so i think this could be it
ant more suggestions would be great

 

ok please help me out ok put stock chip and it blinks for 5 seconds then goes out with key on is this right then

 

That isn't a good sign. Do you have a stock MEMCAL that you can try? Even for a SES blink test?

It can be the easiest to start from a known good working setup. Then check each piece as it is added.

RBob.

 

Do a check on the chip prior to installing it after you burn the program.
First do an erase on the chip and verify it is blank.
Confirm the offset matches for the 32k bin file you have on the 512 chip (on Moates site if you don't have it)
Load the file into the buffer.
Write the file to the chip (Burn)
Do the verification that the chip matches the buffer. (It must)
Then just to be sure, open the "edit buffer" and see if there are a bunch of codes in there (not just all 00 or FF)
If it verifies you are good to go to the next step and install it.

Also don't forget to disable VATS if you don't have that in your car.
HTH

 

could you guys explain more about that ses light and whats it suppose to do
the ses light comes on and then blinks slow not like 3 times a second and then goes out
I thought that is what its suppose to do
i tryed putting stock prom back in with no adator just stock prom ran like crap and withtires off ground no speedoter so maybe stock prom is bad now after burning a few wrong chips

since i had the tires off the ground i burned stock chip to go with adapter and i had speedoter and ses light lite then blinked slow then shut off started ran desent

I have put new ecm in just to make sure

 

SES light, at key-on, engine-off:

The light should: turn on briefly, blink off, then turn on solid.

It should remain solid on until the key is turned off or the engine is started. While at key-on, engine-off you can tap on the MEMCAL & adaptors and such to see if the light starts blinking or something. Of course the SES light should remain on solid through taps & wiggles of the PROM/MEMCAL/adapter.

To repeat the test turn off the key and wait ten seconds. Then key-on, engine-off to test again.

RBob.

 

the bulb was loose now i have it right
when i was burning the chip wrong i started and backed out of driveway and pulled back in will that hurt the motor or tranny