94 lt1

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Mar 16, 2008 | 07:00 PM

#16

23tigga

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What is the correct idling rpm for a 94 lt1

Mar 16, 2008 | 07:14 PM

#17

2000GTP

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From: Aurora, IL

With the engine fully warmed up, for an A4 transmissions, in neutral 650rpm and in drive 550 rpm. An M6 is 800rpm.

Last edited by 2000GTP; Mar 16, 2008 at 07:23 PM.

Mar 16, 2008 | 09:24 PM

#18

23tigga

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Where is the fuel regulator located on this car year and can it be manually adjusted

Mar 17, 2008 | 12:44 AM

#19

ak95ta

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From: Eagle River, Alaska

its on the back side of the drivers side fuel rail. If its the stock one, it can't be adjusted.

Mar 17, 2008 | 07:54 AM

#20

23tigga

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so since it is stock i would have to change the whole thing out

or can it be adjusted with an computer?

Mar 17, 2008 | 08:03 AM

#21

2000GTP

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From: Aurora, IL

Its controlled by vacuum, not by the computer. Why do you want to change it, is it bad?

Mar 18, 2008 | 10:10 AM

#22

23tigga

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i believe so because my car is not burning enough fuel and i pulled my spark plugs out the other day and they have black sutt on them and the plugs aren't even two months old. a mechanic a chevy told me it may be my regulator going bad to start their first so thats why im asking about this specific part.

Mar 18, 2008 | 12:49 PM

#23

2000GTP

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From: Aurora, IL

The way you are describing the plugs, it sounds like the car is running rich. As for the fuel pressure regulator, there is a vacuum line that goes to it. Pull it off and see if there is fuel in the line, if so, then the fuel pressure regulator needs replacement. Also, it wouldn't be a bad idea to do a fuel pressure test on it.

Mar 18, 2008 | 01:19 PM

#24

23tigga

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what could be causing the car to be running rich. Im not familiar with this type of activity

Mar 24, 2008 | 08:05 PM

#25

23tigga

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someone please help me locate the problem to why my car is running rich! please!!!!

Mar 25, 2008 | 10:06 AM

#26

Injuneer

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From: Hell was full so they sent me to NJ

-faulty O2 sensors
-faulty O2 sensor wiring
-exhaust leaks before the O2 sensors
-excessive misfires
-excessive fuel pressure
-leaking fuel injectors
-leaking fuel pressure regulator

Before you do anything, check your fuel pressure. Should be in the range of 41-47psi at idle, with the vacuum lined off the fuel pressure regulator. You started out asking about the fuel pressure, and the regulator. It was suggested that you check the vacuum line. Did you check it, and what did you find? Its very hard to help you if you don't follow up on suggestions.