hey everyone

i bought a ford f150 from 1995
when the engine is really hot like when i drove for more than 15 min. and let it stand in the sun for a while the engine has a hard time starting, if i use starterfluid i can keep it going but that is not really a good idea all the time

i did a code check on the EEC-4 and i have a code 311 and 334 anyone an idea what i could be??
thank you for your time

 

http://www.freeautomechanic.com/diag...blecodes7.html

 

so for the 334 it could either be the EVR or the EVP how can i test these things ?


and for the the 311 issue it the Single, Right or Rear HO2 sensor, were can i find these guy's?

 

evp sensor, http://www.tomco-inc.com/Tech_Tips/ttt19.pdf