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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

fuel pump help!!!!!

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Old May 10, 2009 | 10:41 PM
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From: Crandall
Default fuel pump help!!!!!
i recently changed to a walbro 255 and am getting fuel and everything is plugged up correctly and ive checked all fuses and relays but the car will not start. i have a 97 z28 6m this is a new motor most everything has been replaced any help greatkly apreciated.
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Old May 10, 2009 | 10:42 PM
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have you checked your fuel pressure?
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Old May 10, 2009 | 10:48 PM
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From: Crandall
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yes im getting fuel from the schrader valve but i dont have a pressure gauge to accuratley check it
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Old May 10, 2009 | 10:50 PM
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you should check it. have you checked for spark?
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Old May 10, 2009 | 10:55 PM
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From: Crandall
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im getting spark thats the wierd thing. i have no access to a gauge till tomorrow but i have a job interview tomorrow lol so im trying to get it fixed and i cant think of anything ive missed. ive done this on 2 other lt1s and no problems so im lost.
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Old May 10, 2009 | 11:00 PM
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is fuel shooting out of the schrader valve when you depress it after the pump has primed?
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Old May 10, 2009 | 11:04 PM
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From: Crandall
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yes it is. but when i try to crank the motor it just turns and turns.
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Old May 10, 2009 | 11:09 PM
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well damn, all you need is fuel, air, compression, and spark. You say you have spark but are you absolutely positive? You should probe to make sure the optical part of the opti and the icm are working correctly.
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Old May 10, 2009 | 11:15 PM
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From: Crandall
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im sure its sparking ive put it up to the alternator and watched it spark several times. but i have now lost pressure from the schrader valve it is much slower coming out now.
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Old May 10, 2009 | 11:18 PM
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thats not a good thing! there is fuel in the tank right?
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Old May 10, 2009 | 11:21 PM
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From: Crandall
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almost a full tank
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Old May 10, 2009 | 11:24 PM
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sounds like something didnt get hooked up right. did you drop the tank or did you go the trap door method?
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Old May 10, 2009 | 11:35 PM
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trap door
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Old May 12, 2009 | 01:13 AM
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Glad you got it figured out, you need to get the car running again and come up to Denton.
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Old May 12, 2009 | 04:29 PM
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From: Crandall
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so the pump is now working and i have good fuel pressure now but it still wont start and now i have this wat sounds like spraying sound and it still wont start
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Old May 12, 2009 | 05:11 PM
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where is this spraying sound coming from? are you sure its not the fuel pump priming?
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