my 07 nissan frontier will crank but wont start and doesnt read any codes . any ideas

Question

i have changed the fuel punp , that didnt work

Answer 1

Hi there,

The most common problem with this when there aren't any codes are either the IPDM or the security isn't working right. The IPDM is the large fuse and relay center under the hood. Some of these had a defective ecm relay and wouldn't power up the ecm, thus not storing any codes and no start condition.