91 rs wont run
Thread Starter
Junior Member
Joined: May 2010
Posts: 9
Likes: 0
From: Dayton
Car: 91 z28
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3:23
91 rs wont run
i have a 91 rs with the tbi 305, the car will start if i use starting fluid but wont run after that. my fuel pump is coming on but sounds very very weak. like its not gettin enough power? i bout a brand new pump and same thing! i changed the relay and still same thing. i tested the ol pump with a 12 volt test pack and the old pump works fine just runs really weak when in the car.....any ideas?
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Pumping Up The Power
Use the test-pak on the pump in the car by tapping into the pump wires post relay side.
Did the car stay running?
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Happy Racing!
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I Didn’t Wreck, The Track Moved
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Did the car stay running?
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Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
I Didn’t Wreck, The Track Moved
.
Thread Starter
Junior Member
Joined: May 2010
Posts: 9
Likes: 0
From: Dayton
Car: 91 z28
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3:23
Re: Pumping Up The Power
no the car only ran until the starting fluid wore off. but if i kept spraying it it would stay running
should i by pass the relay or run a new hot wire?
should i by pass the relay or run a new hot wire?
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Pumping Up The Power
OK if the pump is getting good power but the injectors are not squirting:
Make sure the injector fuse is good.
If it is make sure the key is at the off position and disconnect the injectors.
Turn the key to the run position.
Check for power at pin A of each injector.
Do you have power on them?
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
I Didn’t Wreck, The Track Moved
.
Make sure the injector fuse is good.
If it is make sure the key is at the off position and disconnect the injectors.
Turn the key to the run position.
Check for power at pin A of each injector.
Do you have power on them?
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
I Didn’t Wreck, The Track Moved
.
Trending Topics
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Injection Rejection
10-4 on that.
If you did the test in POST 5, and there’s no power where indicated, connect a voltmeter across one of the injectors.
Using a side marker bulb, one side clipped to the battery + and using the other side as a probe, touch and release the probe to the wire going to pin C at the distributor.
When you do that, does the voltmeter move?
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Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
I’ve NEVER Hit The Wall! - The Safer Barrier Prevented It
.
If you did the test in POST 5, and there’s no power where indicated, connect a voltmeter across one of the injectors.
Using a side marker bulb, one side clipped to the battery + and using the other side as a probe, touch and release the probe to the wire going to pin C at the distributor.
When you do that, does the voltmeter move?
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
I’ve NEVER Hit The Wall! - The Safer Barrier Prevented It
.
Last edited by NINÅ; Jun 1, 2010 at 12:43 PM.
Thread Starter
Junior Member
Joined: May 2010
Posts: 9
Likes: 0
From: Dayton
Car: 91 z28
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3:23
Re: Injection Rejection
i just got a great deal on a edelbrock high rise intake and carb set up with a holley blue electric fuel pump, thinkin i might just switch the sytem to carb
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