fordfan1991

I just got my truck back yesterday from the shop where the replaced the Tp sensor. Then last night i was trying out my new code reader and the truck started surging. the rpms would drop and almost stall and then go back up to normal. i didnt get any codes i was just checking and i decided to wait so i dont make it worse. i then disconected the battery for like five mins to reset the computer and that fixed it. well today i didnt notice it until like 30mins ago wen i started the truck it did the same thing but i only did it for like ten seconds. im wondering if me using the reader could have messed something up or is something else going wrong.

my truck is a 94 f150 with a 5.0

thanks for your time,

Ben

DixieDarkhorse

i know with a snap-on scanner thats perfectly normal, when it reads it send the computer into a self check mode and those are exactly the things it will do.

Just call me Sean

iTrader: (1)

Using the code reader didn't do anything to the truck. Even when checking codes on mine the idle stays steady. Sounds like a problem with the IAC. When my IAC acts up I shut the truck off and back on real quick without it stalling and it resets the IAC.