Car runs rough on when cold

Justfbilly

New Member
Jun 10, 2022
1
0
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52
Missouri
I have a 07 Mustang GT that is tuned. It’s been running great but recently when the motor is cold it falls on its face, misses and hesitated and runs bad. When the car warms up it runs fine? There Is not a Check Engine light on, I have cleaned the MAF sensor, checked the injectors and they are not leaking. Has anyone ran into this before?
 
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