My 87

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Jun 20, 2014 | 02:14 PM

Pangit11

Thread Starter

Heel & Toe

Joined: Nov 2011

Posts: 19

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My 87

I got a 87 Vette with 383 stroker fuel injected and will not run,45 days ago stopped running on freeway,lost no electrical but engine quit running have changed fuel pump,ecu,ignition module, knock sensor and fuel pump relay all with no help will not start,any help is appreciated,thanks yes have pressure at fuel manifold have spark,runs ok when spraying fuel in intake manifold,also no codes when using reader

Last edited by Pangit11; Jun 20, 2014 at 05:52 PM.

Jun 20, 2014 | 02:25 PM

John A. Marker

Le Mans Master

Joined: Mar 2004

Posts: 5,107

Likes: 171

From: Dublin CA

You need to start back at the basics.

1) have you pulled any error codes from the computer?
2) have you check fuel pressure?
3) do you have spark at the plugs? Strong?

Jun 20, 2014 | 03:59 PM

playsdixie

Drifting

Joined: Jun 2013

Posts: 1,590

Likes: 60

From: ft myers FL/Munising MI

you changed all those things without checking pressure at the rail and spark?????

Jun 20, 2014 | 05:45 PM

Pangit11

Thread Starter

Heel & Toe

Joined: Nov 2011

Posts: 19

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hey

Quote:

Originally Posted by John A. Marker

You need to start back at the basics.

1) have you pulled any error codes from the computer?
2) have you check fuel pressure?
3) do you have spark at the plugs? Strong?

i have spark and fuel at manifold runs ok when sprat fuel in take

Jun 20, 2014 | 05:46 PM

Pangit11

Thread Starter

Heel & Toe

Joined: Nov 2011

Posts: 19

Likes: 0

Hey

Quote:

Originally Posted by Pangit11

i have spark and fuel at manifold runs ok when sprat fuel in take

also no codes on OBD 1 reader

Jun 20, 2014 | 06:48 PM

floridamale

Safety Car

Joined: Jan 2008

Posts: 3,939

Likes: 1

From: Vero Beach Florida

OK you say you have spark and you have fuel pressure so now you need to check injectors for signal if there is no pulse at injectors it won’t run. what is the fuel pressure by the way it could be to low to start car.How long dose it run after spraying it

Last edited by floridamale; Jun 20, 2014 at 06:50 PM.

Jun 20, 2014 | 09:19 PM

John A. Marker

Le Mans Master

Joined: Mar 2004

Posts: 5,107

Likes: 171

From: Dublin CA

You need to put a gauge on the fuel rail and test the pressure. You say there is pressure, but it might not be enough to fire the injectors. You should have 39-43 PSI at the rail with the key on and the car not running.

Since you can get the car to run if you spray fuel into the TB that is telling you your not getting fuel. Have you check the injector fuses in the fuse block to see if they are good?