Fuel injectors

[hokeplaya05]

you can either bring it to a shop that does diagnostic work and have them test it or go to your local auto parts store and pick one up and test it yourself. hook the tester to the schrader (sp?) valve on the back of the intake and if you find you do have adequate fuel pressure while the motor is running, then its the injectors, if not, then its fuel pump or filter. just help narrow it down so you arent replacing something when that isnt the problem

[dawdaw]

Courtesy of Shbox.... Hook a tester up, will have somewhere between 36 to 40 with the vacuum line attached at idle, with the vacuum line off it should be at 43.5..

[96z28SideSwype]

Courtesy of Shbox.... Hook a tester up, will have somewhere between 36 to 40 with the vacuum line attached at idle, with the vacuum line off it should be at 43.5..

I forgot about this site lol thanks


Silver 96 Z28 SideSwype-DD
Green 96 Z28 NightMare-Drag car

[BALLSS]

OP

you really need to confirm if it is an injector issue before replacing them. Note that only 24 lb OEM injectors will work without requiring a PCM adjustment. Any other brand or diffrent # rating will require this.

you can buy a FP gage that screws on the schrader valve for around $35

You can get your injectors rebuilt for around $10-$12 each. I used www.crizinperformance.com. Rich is the guy there. you get a B & A printout of what they flowed.

[96z28SideSwype]

OP

you really need to confirm if it is an injector issue before replacing them. Note that only 24 lb OEM injectors will work without requiring a PCM adjustment. Any other brand or diffrent # rating will require this.

you can buy a FP gage that screws on the schrader valve for around $35

You can get your injectors rebuilt for around $10-$12 each. I used www.crizinperformance.com. Rich is the guy there. you get a B & A printout of what they flowed.

Cool thanks I'm going to do the test first then may go this route


Silver 96 Z28 SideSwype-DD
Green 96 Z28 NightMare-Drag car

[BALLSS]

fuel pressure test will just rule out if there is enough "pressure" feeding injectors. One, or more, could be bad but checking injectors specifically needs to be done. Checking FP first rules in/out if issue is pre injector.....if in fact your problem has anything to fuel. Injectors are generally stable but can get dirty or fail

[96z28SideSwype]

fuel pressure test will just rule out if there is enough "pressure" feeding injectors. One, or more, could be bad but checking injectors specifically needs to be done. Checking FP first rules in/out if issue is pre injector.....if in fact your problem has anything to fuel. Injectors are generally stable but can get dirty or fail

Yeah but idk if I have a fuel filter issue I doubt it I really think I have a bad injector somewhere I haven't had time to pop the rail off but hopefully soon I will be able to


Silver 96 Z28 SideSwype-DD
Green 96 Z28 NightMare-Drag car

[Ugod02010]

The pressure test will let u know if u have an issue with pump or filter. The rails really easy to get out also to check on the injectors themselves