What about the INTs? Running short term only? INT updates BLM, not the other way around. If the INT is intact and working this could just be a non long term fuel trim tune. I'd rather see initial tuning off INT average than wait for BLM updates.
What about the INTs? Running short term only? INT updates BLM, not the other way around. If the INT is intact and working this could just be a non long term fuel trim tune. I'd rather see initial tuning off INT average than wait for BLM updates.
A friend used a mail-order tuner and is still very unsatisfied with how his vehicle runs. He still has the data logs sent to the tuner and we want to do some detective work to determine what was done. So, is there a device that allows reading/downloading the .bin of a 24-pin PROM that is still in the plastic holder? I ask because my success rate at separating the chip from the holder is very low. I want to be able to download the .bin of the last burned chip and NOT jeopardize or ruin the mail-order chip?
Unsoldering the socket out of a scrap ECM would allow you to read the chip without damaging it.
It probably is a crap tune, but without knowing the context of why the original chip was created or how it was being used it's hard to tell. I do agree with Skinny Pedal that it's possible INT was being used. It also could be locking all the trims expecting to tune with a wideband.
Last edited by lionelhutz; 03-28-2018 at 01:20 AM.
Doesn't have to be a scrap ECM...the way I start 24-28 zif mod, I'll take a needle nose and pull straight up on the lower half of the carrier socket. Pops right off leaving the 24 pins. De-solder 24 pins re-inserting them into the lower half of carrier socket. Pop that onto a ZIF just to sorta keep the pins in place. Now you can insert PROM carrier onto that and proceed to reading it in your burner.Originally Posted by lionelhutz
Even though it's crap, well we wanna do this for the sake of this thread and post up another mail order tune (name to be withheld) to be dissected!!!
Totally agree!!! Use it as a guide but a blank canvass might be a better start for fixing the tune.
If it is soldered into the memcal one option would be to use jumper wires with two male ends, then plugging one in into the memcal, the other into the corresponding location on the chip burner/reader. The APU-1 and I believe the Burn2 from Moates have read/write capability. But dont quote me on that. I know the APU does.
If you want to send me the chip, I will read and post the .bin here. Free return shipping. Please send me a PM for details.
dave w
Stew, I wanted to ask the question about a device but also did NOT want to hijack this thread. But since this thread was about "questionable" mail order tuning, gave it a shot. And so, like some TV shows indicate...TO BE CONTINUED.
Thanks Dave W...truly appreciate your offer. Since this is his daily driver, we can't send away the chip and have his truck in-op.
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