Please help!

[Mysticfox90]

Hello everyone. I have a 1990Mustang GT with H/C/I! I have read through the threads here and im pretty sure im just not grasping how to make this thing idle. It wants to surge no matter what, especially in gear. Any help is deeply appreciated. I will attach a copy of the tune in the car and the longest datalog i have. I have verified timing and recalibrated tps. TPS movement in the log is me simply trying to keep it running. Once again Thanks in advance!

 

[Mysticfox90]

0Hello everyone. I have a 1990Mustang GT with H/C/I! I have read through the threads here and im pretty sure im just not grasping how to make this thing idle. It wants to surge no matter what, especially in gear. Any help is deeply appreciated. I will attach a copy of the tune in the car and the longest datalog i have. I have verified timing and recalibrated tps. TPS movement in the log is me simply trying to keep it running. Once again Thanks in advance!

Stock bottom end 302
Holley systemax intake
Fcam
Afr 185s
mspnp2
42# Ford racing Injectors
90mm Accufab Throttle body

 

[86HO5.0]

I will take a look at this later today. Mass air or SD?

 

[Mysticfox90]

I will take a look at this later today. Mass air or SD?

I appreciate your reply sir. I’ve gotten hooked up with a gentleman that’s tuning this for me. Once again really appreciate the reply!

 

[86HO5.0]

No problem, I took a look at it anyway.

Does the car have an IAC? You have the idle control valve set at NONE.