the top of my injectors are yellow anyone have any idea what brand they might be?

 

Look for the number on the injector and see it the words below help. Numbers, not colors.

4-85 | 13B NT | low | square | center | 680cc | orange | 195500-0900
86-87 | 13B NT | low | square | center | 460cc | red | 195500-1350
86-87 | 13B T | low | square | center | 550cc | tan | 195500-1370
88 | 13B NT | high | square | offset | 460cc | purple | 195500-1350
88 | 13b T | high | square | offset | 550cc | purple | 195500-1370
89-91 | 13B NT | high | oval | center | 460cc | red | 195500-2010
89-91 | 13B T | high | oval | center | 550cc | purple | 195500-2020

 

so im guessing they are the stock 86-87 13bt tan?????

 

No. You should get a magnifying glass and look at the electrical plug area of the injector. There are numbers there on the original injectors. They should match one set of numbers in the list. If there are no numbers, I don't know what to say.

The injectors on early turboii have the notch in the injector in the middle of the plug area. The later model injectors have the notch offset from the center of the plug.

Ohm out your injectors. The notch in the middle will be approx 2.2 ohms. Later offset ones somewhere around 10-11 ohms.

But the numbers tell all. The ones embossed on the injector.

 

This site for vin numbers that effect injectors http://www.rotaryperformance.com/pages/page12.html