Bout how much $$ does the cable cost?

So you are saying I don't have to buy an OBD I can buy a cable and what, Use a PC to access all the data?

WARNING ! ! NUBI MERGING !! I'm Going to sound really dumb till I get up to speed!

Friends, how much information can I get from an OBD I beyond blink codes? The guys at AutoZone say not much so...

This TBI Chips programming sounds real cool knowing that manufacturers program for a broad range of drivers so I can gain performance by narrowing the program to my driving style only.

I went to the library to check out their manuals and the librarian said to me, "We don't have many manuals.. ..(I felt bummed down a bit but she continues).. .. but we have a subscription to an...

Great ideas fellas, Thanx

Friends,
I am fed up with these horrid inaccurate wiring diagrams, Hanes and Chilton manuals are my primary complaint now.

SO! Where do I find an accurate electrical schematic for a '90 GMC...

Actually, No! There isn't an air pump on it. Of course it's a swap by a previous owner who could've removed it but I "think" not.

Can I use any of the listed 'K' engine Prom chips for the 1227747 ECM ??

ACSU, ACSW, AKAL, AKAJ, AKAR, AMUR, ANLW, ANLX, ANLZ, ARHT, ARJT, ARJU, ASDU, ASDW, ASDZ, …

Or must I have the...

When I buy a PROM for my 1227747 is it one or two chips? The reason I ask is because my ECU has two empty sockets. the problem is that I ordered a whole ECM from Autozon, I thought. the web page...

Let the Q&A begin