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Installed fuel pump in 91 z28 won’t run.

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Old May 2, 2024 | 08:10 PM
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tuned out's Avatar
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Installed fuel pump in 91 z28 won’t run.

No vats issue. Security light is off. Changed pump and sending unit. Get fuel to motor. But it seems to be pouring out throttle body. Has any one ran into this before? It acts like it wants to start but won’t stay running.
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Old May 2, 2024 | 08:17 PM
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Tuned Performance's Avatar
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Installed fuel pump in 91 z28 won’t run.

Fuel in the regulator hose ?
tuned port injection?
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Old May 2, 2024 | 08:40 PM
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Re: Installed fuel pump in 91 z28 won’t run.

it seems to be pouring out throttle body
Pardon me for being Captain Obvious, butt this seems ... a deviation from the plan.

Perhaps instead of asking if anyone has ever seen this, it might be worthwhile to LOOK AT where the fuel is coming from. Again, forgive me, butt ... I just can't help butt think that ... LOOKING might expose the truth.
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Old May 3, 2024 | 02:58 AM
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tuned out's Avatar
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Re: Installed fuel pump in 91 z28 won’t run.

Originally Posted by Tuned Performance
Fuel in the regulator hose ?
tuned port injection?
yes tune port. Maybe I need to drop tank and check hoses.
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Old May 3, 2024 | 06:37 AM
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From: central Texas
Car: 91 TA Vert WS6-94 TA Vert
Engine: 5.0/5.7 LT1
Transmission: 700R4
Axle/Gears: 2.73-3.42
Re: Installed fuel pump in 91 z28 won’t run.

Originally Posted by sofakingdom
Pardon me for being Captain Obvious, butt this seems ... a deviation from the plan.

Perhaps instead of asking if anyone has ever seen this, it might be worthwhile to LOOK AT where the fuel is coming from. Again, forgive me, butt ... I just can't help butt think that ... LOOKING might expose the truth.
This is what I call being "Facebooked." No troubleshooting, no methodical "look see," just jump on line.
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Old May 3, 2024 | 05:20 PM
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tuned out's Avatar
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Re: Installed fuel pump in 91 z28 won’t run.

Originally Posted by Roorancher
This is what I call being "Facebooked." No troubleshooting, no methodical "look see," just jump on line.
great response. Forums now days suck.
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Old May 3, 2024 | 05:22 PM
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Installed fuel pump in 91 z28 won’t run.

Originally Posted by tuned out
yes tune port. Maybe I need to drop tank and check hoses.
the fuel pressure regulator vacuum hose connects to the plenum . Passenger side rear of plenum.
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