jcoop

i recently picked up a 89 f150 5.8 gas tank was leaking so i dropped it and patched it and replaced the fuel pump (connections were rusty). ever since she has been stalling out on me while im driving. if i let her sit she start back up and will run fine for awhile. replacing the fuel pump relay today, hoping that fixes the problem. any other suggestions would be appreciated.

garbill2003

Relay work?

Z)OoM

Hmm, fuel filter clogged??

garbill2003

How about spark have you checked it engine kite on? ????

jcoop

havent had a chance to take her for drive since i replaced the relay, hopefully afterwork today i will take her out. replaced fuel filter as soon as the problem started, no change. cel is on and throwing codes 63 and 31 replaced tps and unplugged egr till i can replace it. 34 just showed up aswell so im going to look into that (maf?). usually when it dies carb cleaner or starter fluid will make run for a min so it seems like its a fuel related.

jcoop

not maf, evp wich i guess would be because i unplugged the egr?

jcoop

took her for a drive tonight, relay didnt fix the problem. i noticed my gas gauge was all over the place half full, empty, quarter full, half full. she stalled twice first time shut truck of before completely stalling waited a minute and she started back up drove around for about 45 mins. second time truck stalled gas gauge read empty added gas started back up, drove to gas station added more gas and headed home.
not sure were to go from here, any ideas?

jcoop

just noticed code 44 must have missed it before.
still looking for advice if any one has any, i saved this truck from going to the scrapyard and would really like to be able to drive her around

351W1085

It wasn't an airtex pump, was it?

jcoop

yes it was an airtex