New icp problems

[Fordman99]

I installed a new icp after breaking the connector of the old one. Now if I don't wait to start it chugs and stalls every time hot or cold. The check engine lite never went off when I put in the new sensor in. I checked for codes with an autozone scanner and it said there were no codes?? I'm guessing I got a bad sensor but would that cause the chugging and stalling idk gonna try to get access to a real scanner tomorrow. Any ideas are welcome if I wait for the WTS light it starts no problem

[pablito]

The AZ scanner will not read most diesel codes, without some codes or tests its kind of hard to diagnose.