[ghlkal]

Originally Posted by XfireZ51

These three are probably the more frequent issues with owners of the C4 LT-5, particularly when they modify the motor.
Typically, the first things done are porting of the intake (plenum and injector housings) along w headers and exhaust.
Hesitation occurs after decel, bogging usually from standing start. The stalling can occur when freewheeling to a stop. The more rapid the decel, the more likely the stalling. One other thing w freewheeling is an oscillation of the idle as u roll to a stop. I’ve also observed it on a slow crawl, in neutral, and putting a load on the motor such as turning the steering wheel.

Hi Dom,


These describe my issues exactly.



My engine modifications are as you list also (ported plenum and IH, headers, exhaust)


I'd love to have the tune modified to correct this. PM on the way


Gary