I have used the search button and cant find out what the heck these 2 codes are that I pulled from my '87 Pickup 22RE. I pulled a code 5 and 11. Can anyone pinpoint what is wrong?

 

Code 5 is for the O2 sensor signal. I don't know what 11 is right off. But here's a guide for you.
http://www.off-road.com/toyota/tech/codes/

 

 

Thanks for the replies guys!!!! This helps out. I just gotta find out where to start first. When I first start up the truck it seems rough until you gas it a few times and it seems to smooth out a bit. When I start from a stop it has some hesitation and then once you get on it it will smooth out and go. Will the O2 sensor cause this? I guess I just need to start replacing some things and see what happens. Anyways thanks for the help with the codes.