2007 Mazda CX-7 2.3 turbo
 

im a new member. Wanted to see if anybody could help me with my car. I have changed so many things on this car to still have the same problems. Car has problems starting when it’s cold. When its warmed up for a very long time it runs fine after removing check engine light. Keep getting code for rail fuel pressure sensor, timing cam retarded. I changed fuel pressure sensor, just replaced timing chain and timing chain tensioner guides , phaser , etc cause I saw everyone basically had the same problem. And still have the same problem. Just today replaced fuel high pressure pump coolant sensor, air filter sensor. Still same problem. Bout to give up on this car. The only thing me and my brother think could be is getting ecu reflashed and updated but we are tired of spending money. Any have a solution?

i had cold start issues, turned out to be injectors