Hi,

I recently bought a Rx7, but the car came with a problem : If accelerate it quickly it cuts @ 4000Rpm and if i do it slowly it reaches 9000 without cutting.

I ran a diagnosis on it and errors 51 and 52 came up : Air pump relay open or short / fuel pump relay open or short.
I already replaced the fuel pump but nothing changed.

Also if i run the car for about 20 minutes it starts lossing power and eventually turns off by itself, and it will only start after about 10/20 minutes. I also noticed that the temperature doesnt increase.

Can someone help me?