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Old 05-19-2009, 03:09 PM
James Scott James Scott is offline
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Join Date: Nov 2002
Location: Fresno, CA
Posts: 1,002
Fuel Pressure Regulator.. ? Stock vs. Impreza

Does anyone know how to determine which part # is for my 1995 FPR .. and which is for the (Impreza?) I installed years ago prior to wanting to use nitrous on my SVX. The (Impreza) FPR put out a higher pressure to allow adequate fuel flow during nirtous boosting (and fit the SVX).

I didn't pass smog recently (with SmallCar chip Regular Gas wire turned on + Regular gas). So, I'm concerned about becoming a gross polluter... and not passing again! I've switched to Premium, turned off the "Regular Gas chip switch" I installed a while ago. I want the original FPR installed, but I'm not sure which is which??

I "THINK" the stock FPR has numbers: A44-000R55 51230
The other FPR has numbers: A44-S26 R10 39020

Please enlighten me.. . if possible.. .

Thanks Jim
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Jim
1995 Laguna Blue SVX AWD L - 240K (daily driver) - "ReBuILT" used engine at 236K miles (6/13)
2013 Veloster Red - Driver Now??Dropsprings [1/2" rear, 1" front] with Koni Strut Inserts> Magnaflow Exhaust System> ECUTune Stage 1av1 Upgrade (from 1v4)> ECUTune TCU MOD> Aluminum Crankshaft Pulley> Stainless Brake Lines> Phenolic Spacers> Perforated Brake Rotors (dint like, OEM now)> SmallCar Shift Kit (resting since TCU MOD)> 7-Position Ground System> High-Pressure Fuel Pressure Regulator (resting)> ATF Cooler & Campaign Filter> Yellow Polish Polyurethane Bushings> Pioneer Double-DIN Stereo with JL AUDIO Speakers> Driveshaft Rebuilt with C-Clip U-Joints> 15 Min MOD> 20 Min MOD .. . (2011)
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