Need help bad..... 2000 mustang gt 5 spd with kenne bell 9lb intercooled kit. Can somebody give me a troubleshooting flowchart for a p1400 egr differential pressure low circuit input? My problem is that kenne bell tells me I have to have iat sensor plugged into the iat in the intake manifold supplied with the supercharger. I have had an iat sensor in my cold air intake which worked fine with no codes. Kenne bell tells me it cant be plugged in their and I could blow up motor. I have now plugged the 2 pin connector from cold air intake iat sensor to the sensor in the intake manifold. Now on my two trip drive cycle I get a ce light for p1400. I clear code and plug back into cold air intake and code does not reoccur. I tried swapping sensors on the two and it still codes with iat plugged into manifold. I cleared code again and just left unplugged and I get a p0113 Iat sensor code. I check in the data list with iat plugged in and it is reading temperature so I know its working. Ant help greatly appreciated or even just a flowchart for p1400