1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

94 L27 Fuel Pressure?

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Old Sep 8, 2006 | 07:36 PM
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Default 94 L27 Fuel Pressure?

Ok i tested my Fuel Pressure today thinking thats maybe whats been cousing my sputtering problem iv had for a long time and how its getting a little worse now.

When Idel its arouns 35ish, Reve it it to like 2K and hold it spikes at like 39 and while at 2K it drops to around 32ish. Never got over 40.

So Bad, Good, or Ok may be cousing my problem :? :?:
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Old Sep 8, 2006 | 08:38 PM
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as i told you you want a Pressure of 41-47....
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Old Sep 8, 2006 | 08:40 PM
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Originally Posted by 1993 SLE
as i told you you want a Pressure of 41-47....
yeah i know i posted this befor i got a hole of u and i forgot what u said befor
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Old Sep 9, 2006 | 01:16 AM
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That'* very low. I suspect you're having starting problems unless you let it prime for 2 seconds, then start before it can bleed down?
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Old Sep 9, 2006 | 01:42 AM
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Originally Posted by willwren
That'* very low. I suspect you're having starting problems unless you let it prime for 2 seconds, then start before it can bleed down?
yeah always let it run for a few seconds, befor i start it/

But yeah at low RPMs like when you tak off VARY slow its like shakes like it wants to stall but doesn;t but after i give it just a little more gas its fine..

Im going to replace the Filter, chack it again, and if its still low, then its Fuel pump/ tank time :(
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Old Sep 9, 2006 | 09:50 AM
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i am assuming that you are getting this info from a scanner? Can autozone or someone run a scanner and tell me that? I would like to know what mine is........
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Old Sep 9, 2006 | 09:58 AM
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Fuel pressure gauge attached to the pressure fitting on the fuel rail, mrbell.
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Old Sep 9, 2006 | 10:00 AM
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Originally Posted by willwren
Fuel pressure gauge attached to the pressure fitting on the fuel rail, mrbell.
Oh, ok so I just have to go and but a gauge and undo that cap? Are there any specif instructions? Mine just acts finny at idle sometimes and I would like to know of its a vaccum leak or maybe low fuel pressure.

Thanks Bill
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Old Sep 9, 2006 | 10:16 AM
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Originally Posted by bandit
yeah always let it run for a few seconds, befor i start it/
explain?
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Old Sep 9, 2006 | 10:20 AM
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Originally Posted by ELMACHOGERACHO
Originally Posted by bandit
yeah always let it run for a few seconds, befor i start it/
explain?
He turns the key on, without starting the car, to let the fuel pump run and pressurize the system for a few seconds. Then, he starts the car.
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