need help with cold start problem/fuel pressure issue
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Joined: Apr 2007
Posts: 195
Likes: 6
From: Canada eh
Car: 87 GTA / 87 IROC-Z
Engine: 350 TPI / 350 TPI
Transmission: 700R4 / 700R4
Axle/Gears: Stock
need help with cold start problem/fuel pressure issue
Hey all, i have used the SEARCH and couldn't find an answer to my question.
i have this problem, its been this way for a while.
When i start the car cold it doesn't want to idle, i have to feather the gas just a touch to bring the revs to say 800 rpm and it will idle but it tends to spurt out black stuff from the pipes. When the car is warm i only have to wait maybe a min then i'm good( when warm no black stuff)
Yesterday i went to check the fuel pressure, removed the vac line with the gauge on and it idled perfect (about 50psi no vac) stayed running. when i connect the vac line back up. started to idle rough again and then died. Before it died i saw about 32-35psi with the vac connected.
Also i don't know if this is related but sometimes if say i'm at a stop and floor it, car jumps, practically stalls out and then comes back and goes np. this doesn't happen all the time but often enough.
help would be appreciated
thx.
i have this problem, its been this way for a while.
When i start the car cold it doesn't want to idle, i have to feather the gas just a touch to bring the revs to say 800 rpm and it will idle but it tends to spurt out black stuff from the pipes. When the car is warm i only have to wait maybe a min then i'm good( when warm no black stuff)
Yesterday i went to check the fuel pressure, removed the vac line with the gauge on and it idled perfect (about 50psi no vac) stayed running. when i connect the vac line back up. started to idle rough again and then died. Before it died i saw about 32-35psi with the vac connected.
Also i don't know if this is related but sometimes if say i'm at a stop and floor it, car jumps, practically stalls out and then comes back and goes np. this doesn't happen all the time but often enough.
help would be appreciated
thx.
Member
Joined: Jan 2010
Posts: 172
Likes: 0
Car: 88Roc Flame Red Black/Gold Pkg
Engine: L98
Transmission: 700R4
Re: need help with cold start problem/fuel pressure issue
Hey all, i have used the SEARCH and couldn't find an answer to my question.
i have this problem, its been this way for a while.
When i start the car cold it doesn't want to idle, i have to feather the gas just a touch to bring the revs to say 800 rpm and it will idle but it tends to spurt out black stuff from the pipes. When the car is warm i only have to wait maybe a min then i'm good( when warm no black stuff)
Yesterday i went to check the fuel pressure, removed the vac line with the gauge on and it idled perfect (about 50psi no vac) stayed running. when i connect the vac line back up. started to idle rough again and then died. Before it died i saw about 32-35psi with the vac connected.
Also i don't know if this is related but sometimes if say i'm at a stop and floor it, car jumps, practically stalls out and then comes back and goes np. this doesn't happen all the time but often enough.
help would be appreciated
thx.
i have this problem, its been this way for a while.
When i start the car cold it doesn't want to idle, i have to feather the gas just a touch to bring the revs to say 800 rpm and it will idle but it tends to spurt out black stuff from the pipes. When the car is warm i only have to wait maybe a min then i'm good( when warm no black stuff)
Yesterday i went to check the fuel pressure, removed the vac line with the gauge on and it idled perfect (about 50psi no vac) stayed running. when i connect the vac line back up. started to idle rough again and then died. Before it died i saw about 32-35psi with the vac connected.
Also i don't know if this is related but sometimes if say i'm at a stop and floor it, car jumps, practically stalls out and then comes back and goes np. this doesn't happen all the time but often enough.
help would be appreciated
thx.
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