Runig very fat/wirring questions

[BLACK91]

I install a new computer in my car from the factory to a A9L. And my car for the past 3 months is running real rich. Just recently when it is started I have to give it a bit of gas to keep it running smooth. once it is warm it runs ok, but when i come to a slow it wants to die and the idle syrges a bit.

What could it be?
Is my IAC going out?
Do i need new 02s?

Any help is greatly appreciated...

MOds- cobra upper/lower, 65mm TB, Cold AIT, and full exhaust

[garycrist]

It could be VSS. But you need to run a KOEO/KOER test to get started diagnosing the problem.

[svauto-erotic855]

Coolant temp sensor.

[BLACK91]

Coolant Temp Sensor? Can someone give me some info on the coolant temp sensor causing some of these issues? Running Fat and Poor Idle quality!

[garycrist]

I would start here!

http://fordfuelinjection.com/

[BLACK91]

thanks gary

[BLACK91]

Running rough

So I changed my CT sensor and cleaned my AIT sensor and I adjusted my TPS switch......It i running ok could be running better. Next I am off to change the 02 sensors. Any thoughts. I also am changing the screen under the pcv valve...........