• Sign Up! To view all forums and unlock additional cool features

    Welcome to the #1 Fiesta ST Forum and Fiesta ST community dedicated to Fiesta ST owners and enthusiasts. Register for an account, it's free and it's easy, so don't hesitate to join the Fiesta ST Forum today!


Low boost! Cant do More that 5psi of boost

Messages
19
Likes
12
Location
México
#1
Hi guys! I just dont know what else to do! I replace the boost solenoid, my mechanic did a smoke test AND he states that there was no leaks, i put a new cobb intercooler AND a dizzy stage 2 map. With the accesport i did a couple of datalogs AND i cant do More that 5 psi of boost, wgdc ITS on 75% so i do not know what else do i have to check, my Guessing Is that my gfb dv+ Is stuck, any opinión? Thank you in Advance.
 


dhminer

2000 Post Club
Messages
2,486
Likes
2,914
Location
Burlington, NC, USA
#2
Diverter valve is a good place to check. Boost leaks also don’t often show up on a smoke test because there’s very little pressure.
 


OP
M
Messages
19
Likes
12
Location
México
Thread Starter #3
I checked For boost leaks everything looks fine, all clamps AND hoses, i replace my gfb dv+ For the oem bov. I changed maps from dizzy to cobb, i make shure that there wasnt on eco mode. AND nothing !! I still cant get More than 5 psi! I don't know what else to check
 


OP
M
Messages
19
Likes
12
Location
México
Thread Starter #6
Ok! Sorry For the delay, the problem was a sensor behind the steering wheel behind the airbag, this sensor detects when the car is turning left or right, it wasnt properly calibrated, the car wasnt properly alligned, so because of this the car goes to limp mode. We replace this sensor and the car is working great! 22 psi of boost
 


Similar threads



Top