Should my idle quality change when I disconnect the vacuum line from my fuel pressure regulator? I don't have a fuel pressure gauge so I can't really check it the right way. Thanks for any help.

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1989 Iroc-Z TPI 350 auto 4-spd Removed MAF screens K & N filters, Hedman smog shorties, accel 8mm wires, made for you wire looms, flowmaster american thunder cat back, gutted cat.

 

Anybody?

 

I don't know nery much at all about the internal workings of regulator, but even if it didn't somehow affect the fuel pressure it would certainly affect the vacuum level and change the idle slightly...equalivent to having a vacuum leak.



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1987 Camaro IROC-Z
350 TPI (L98), HyperTech Airfoil, K&N Filters and modified airboxes, AC Delco RapidFires, Taylor SpiroPro 8mm wires, Energy Suspension polyurethane bushings for front and rear LCAs and sway bars, KYB struts and shocks, BFG g-Force Z-rated tires, MAC STB, MAC SFCs, JET low temp stat, CarSound Hi-flow Cat, 3" Mandrel-bent pipes, Flowmaster muffler, Corvette Servo, TransGo Shift Kit, Corvette 2000 Stall, TruCool LPD tranny cooler, T-tops.

2001 Sunfire GT
2.4L, 5-speed, K&N cone filter, interior detailing, 200W Monsoon Sound System (8 speakers), Silver Metallic exterior with grey interior.

Web: http://www.angelfire.com/on3/whitelightening

 

Anybody else know? I disconnect the vacuum line to the regulator and plug off the vacuum port on the plenum but nothing changes. Is that wrong?

 

no, mine usualy doesn't unless i leave the vacume line open. the extra pressure shouldn't matter, ur still having the same amount of fuel going through the injectors.

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- David
88' GTA 5.7L TPI MODS---> air foil, K&N, Shift Kit, 180* therm, TB bypass, Gutted CAT, Flowmaster 80 Series Muffler added to Unkown CatBack, Ported Intake

http://www.geocities.com/david_angel_16

 

Cool, thanks.