Replaced the in tank with a fitech pump and put in a fuel pressure gauge near the throttle body. Carry a test light.
Efi Fuel Delivery Knowing What You Need Is Key To Smooth Running
Fitech fuel pump problems. Fuel pumps etc spent hours with tech support and nothing. If so you can use pwm to slow the pump and reduce the noise. You set your prime to a longer period of time. Hopefully your installer used the fitech orange wire to go directly to the pump without a relay. I have mine set to 20 seconds some times. Fitech fuel injection new auto parts.
After leaving message after message to 3 different techs facebook messages facebook page posts and emails i finally got a hold of a human being. Still having a lot of problems running lean and backfiring when rpms get over 3000. It is something to do with the pump or ground for the pump. Then the handheld seemed to fail. One common problem that many car builders have when installing efi is getting the fuel pump to provide a constant supply of high pressure fuel to the injectors. I will be filling a.
If pump is really loud it is most likely working too hard. I have a new fuel pump on the way so i hope that fixes my issues. A standard mechanical fuel pump can. Test the fuel pump fuse for power when priming. Just make sure it maintains pressure. I had to find out what was wrong from other people who had the same problem.
If power in orange wire during prime it is not the unit. Well i finally got a hold of fitech. I would suggest you get a fuel pressure gauge.
Gallery of Fitech Fuel Pump Problems
