anyone know of a cheap code reader i can order for my 1994 s10 blazer 4.3L w-type?

 

u should be able to go to a local auto parts store like autozone or something and they will read the codes for u for free

 

Or check them with a paper clip...

engine trouble codes

 

it wont make it there...

 

here is another link I found, It is hard to find a place that has an ODBI connector plug but a few places do have them, call around if you don't wan't to do the paperclip method.
https://blazerforum.com/m_21500/tm.htm

 

http://cgi.ebay.com/ebaymotors/CODE-...spagenameZWDVW

Here is an OBD 1 reader. Short money.