evan1242

mine went bad in one day. it has diaphragms inside it, and they are unpredictable. do you have a FSM yet? if not, you need one, they can be very very help full. if you do not think that it is the FPR, then go through the entire EFI section in the FSM, and test every sensor that there is, and you will eventually find your problem. things such as the CHTS, TPS, AFM. (you know what i mean)

you are exactly right. it IS running to rich. if you reduce the amount of gas (by squeezing the line) going to the injectors and it runs better then it basically pin points your problem. you need to get a fuel pressure gauge on there, and see what kind of numbers you are getting. get a T fitting and put the gauge between the stock filter and the fuel rail. (you want to be around 32 psi at idle) my bet is that it is a faulty FPR, or a bad vacuum line to the FPR from the intake manifold.

sound like you have a FPR that is not allowing gas to return the tank. it could also be a clogged return line. check to make sure that the vacuum line that goes from the intake manifold to the FPR is nice ans tight.

hey man, im new to the site and just looked at all the pictures, and they are very very very sweet. that is probably one of the coolest custom intake jobs that i have ever seen.!! good work!

i have a 1983 280 ZX Turbo with 245,000 miles. i am running 10 psi right now with a manual boost controller, and a intercooler. (soon to be 14 psi when i get the 440cc supra injectors)

just save your self the time and get them all done and over with. there is no sense in doing some, and then having to do the others in the future. besides, none of them are that hard to do.

hey guys, im new to this web site, but not Z cars. i have a 1983 280 ZX Turbo that is intercooled and is running 10 psi of boost using a MBC. i have a barbed fuel rail from lone wolf performance and i want to know if there is a way i can make it work for a set of O-Ring supra injectors? (440cc) thanks