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my question is i have a pcm chip from alvin in right now, it runs rich. So i want to try tuning it myself try to find some one to tune it for me but hard to find, then the ones that tune won't tune our years . so i just got every thing i need to get started . so which chip do i make my changes in the performance chip or the or the chip that is under the blue plastic cover. this is for a 93 lt1
Just not sure where to start when i have two chips.
do i make my changes in the performance chip or the or the chip that is under the blue plastic cover.
Unless you are doing it the old fashioned ( and very slow ) way of erasing the stock chip , you use an adapter in the ECM to mount a reprogrammable chip.
Remove chip from adapter , install in your burner, load new program , reinstall in adapter , drive car.
Is your chip from Alvin in an adapter like this? http://www.moates.net/product_info.p...products_id=32
In which case you carefully remove the chip to install in your burner for programming .You would download and save the tune that is on it first as a back up reference.
If you write a new tune on chip whatever is there is lost
i have data master, tunerpro/rt. a transonics pocket programmer and a ultra violet eraser from transonics. also have a aldl cable.the chip i have from alvin is on a adaptor the chip is a sst chip. i also have a chip from hypertech from when i had a 160 degree thermostat.i don't know if it is reprogramable. i tried putting the hypertech chip in the pocket programmer to see if i could read what was on it, could not. it could be me doing something wrong. i ran data master yesterday i have a few dtc codes to fix first .64 right o2 sensor lean ,43 esc failer 55 fuel system lean.
Don't know what style Hypercrap use but Transonic unit and eraser will only work on the old style EPROM chips.
The SST chip (EEPROM ) needs one of these to reprogram , much faster http://www.moates.net/product_info.p...roducts_id=197
A simple as loading a file on a floppy disk ; put chip in burner , delete file , load new file , done