Options for tuning of Gen1 TBI in 2023

[gmbellew]

Right, but allowed you to use blue tooth and phone vs laptop?

I use my phone with ALDLDroid and a Bluetooth OBD1 connector. you can export the csv files to your email and open in excel and save as an excel file.

 

[mibars]

Let's restart this thread
I've learned that in GMT400 TBI it is possible to convert from PROM memory to EEPROM using some adapter and you can even datalog via the ALDL port using TumerPro, as found in this thread:

TBI / ECM tuning options. Chip / Burn / etc.

This thread begins with my truck (93 5.7 stock TBI) having a too free flowing exhaust. The Check Engine light is always on because of the lack of backpressure for the EGR system. Basically, I've tolerated it for too long, and I've started looking at my options, which are..... Not Good. As I...

www.gmt400.com

Does any of you know if this same approach would work in a 1990 V1500 5.7 TBI?

What I understand is that I need an adapter like one of these:

GM ECM MEM/CAL PROM Adapter with ZIF socket

GM OBD1 ECM MEM/CAL MEMCAL PROM Adapter with ZIF (Zero Insertion Force) socket Compare to Moates G1 Memory Adapter Allows you to use a custom programmed chip (not supplied) with your GM 66 pin MEM/CAL ECM. Note you will need to remove the cover to install this adapter however after that simply...

reddevilriver.com

GM1 Memory Adapter

boostednw.com

Couple of 27SF512 memory chips (or a compatible one)

https://allegro.pl/oferta/w27c512-pamiec-eprom-kasowalna-27c512-pdip28-13738377530

Plus a chip reader/writer

An ALDL 12 PIN cable like this:

OBD Diagnostics, Inc. - OBD2 All-In-One Scan Tool w/ USB

The OBD2allinone pc scan tool to turn off the check engine light on OBD2 cars and trucks is made and sold by OBD Diagnostics Inc. Our automotive diagnostic tools can read and log any obd check engine code data.

obd2allinone.com

Has any of you tried playing with TBI and have comments on the above?

 

[Sgt Gus]

Not yet. I have the obd diagnostics 12pin to USB. I wanted to go in the dynamic-efi direction, but sadly Bob (Robert) passed away.
I plan on running aldl Droid to see where she is at. I'm expecting what tuning I may need will be done old school. If I see ( or think I do) eeprom seems like a better way to go.
There are tuners as noted above if you want to tune and move on.
For me the idea was to play and learn, and prep me for future efi tuning. Practically...back to the rabbit hole.

 

[mibars]

Wow, I was seriously considering that Flash 2 ECU, with a major drawback of having to ship an ECU for conversion. Sad to hear that.

But you got me reading on the ALDLdroid, that's one more interesting option to consider.

Speaking of my goals: I just want to try to tinker with engine management and see what can be done, maybe there are some HPs hiding and this will enable any possibility to do actual mechanical mods to the engine