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ls3 416 won't start

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Old 10-14-2018, 12:33 PM
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Default ls3 416 won't start

Hello long time reader first time poster. I've seen a lot of post on here that relate to my problem with no final solutions so I thought I'd make a post.

Yesterday I was out driving and car was running great, I stop for some food and go to start and my car sounded like it was flooded. It started after I gave it gas but would not idle and was real rough and dies. so I got a ride and picked up my truck and trailer and now it's home. Since I thought it was flooded I changed out the plugs and had jumpers on the battery connected to the truck just to rule that out and no start again. It turns and wants to start and nothing. Fuel is 48psi has spark at all plugs as I pulled all and seen spark. Any help would be great thanks.

1970 nova
lme ls3 416
rpm class 6 4l60e
Holley dominator ecu
got about 3,500 miles on it
Old 10-14-2018, 10:39 PM
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check cam and crank sensor operation.
Old 10-24-2018, 10:46 AM
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Check your fuel pump/fuel supply. 48psi is a bit low. You'd want 58 psi. If you're using the vette fuel filter/regulator - the generic one can go bad.
Old 10-24-2018, 11:06 AM
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It should still start at 48psi. He has other issues




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