Any chance it’s the FP regulator itself??
Larry White Knight 1991 Crystal White #99 CSP Silver Bullet 1992 Silverstone #17 SM2 FM I+ Turbo Honey B 1992 Sunburst Yellow #99 SM2L JR Supercharger Whooosh 2004 Titanium Mazdaspeed MX-5 LowCountry Miata http://www.lowcountrymiataclub.net Masters Miata RAGS 074 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Thursday, April 03, 2008 8:22 AM To: Larry Alster Cc: [email protected] Subject: RE: ARG - Fuel Pump dying again. :( Yeah, relay.. fed with 10ga direct from battery and from relay to pump. Pump has 10ga ground. Relay triggered by factory fuel pump lead. No kidding, but.. what? I need to check the pickup however when I replaced pump 1 and pump 2, the pickup was fine, not clogged at all. It's holding enough pressure (43psi I think) for partial throttle at 10psi today, but above that it starts to taper off.. Wallyman Inactive hide details for "Larry Alster" <[EMAIL PROTECTED]>"Larry Alster" <[EMAIL PROTECTED]> "Larry Alster" <[EMAIL PROTECTED]> 04/02/2008 08:43 PM To <[EMAIL PROTECTED]>, <[email protected]> cc Subject RE: ARG - Fuel Pump dying again. :( Wally Your running a relay for the pump, right?? Something has to be killing these pumps since it’s not normal to have them die so quickly. How about the pickup in the tank. Too much suction required killing the pump?? As for the 255 pump I thought it was a problem since it tended to overpower the FPR. Larry White Knight 1991 Crystal White #99 CSP Silver Bullet 1992 Silverstone #17 SM2 FM I+ Turbo Honey B 1992 Sunburst Yellow #99 SM2L JR Supercharger Whooosh 2004 Titanium Mazdaspeed MX-5 LowCountry Miata http://www.lowcountrymiataclub.net <http://www.lowcountrymiataclub.net/> Masters Miata RAGS 074 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, April 02, 2008 8:38 PM To: [email protected] Subject: ARG - Fuel Pump dying again. :( Yup.. pump #3 for the Sub.. this time a used external Pierburg is dying on me... ARG. While my gap was wrong (0.045) which was causing some of my misfire troubles, the real cuplrit is the fuel pump dying off.. it'll go to 60psi at WOT (15psi boost) but then quickly falls on it's face, dropping like a rock and the car starts stumbling, O2 reading leaner than 13.0:1. Since fuel pumps apparently are consumables on my car, any reason I should avoid the $99 Walbro 255lph ones on eBay? I'm not swallowing another $242 for a new Pierburg since the life expectancy of a pump seems to be a year or two.. but at $100 I can almost tolerate the frequency... Thoughts, anyone?? The Pierburg wasn't silent, and you could hear it at idle.. if the Walbro is the same noise level, I think I could tolerate it. <http://cgi.ebay.com/ebaymotors/WALBRO-255-LPH-FUEL-PUMP-Mazda-MX5-Miata-MX-5-255lph_W0QQcmdZViewItemQQcategoryZ33555QQihZ002QQitemZ120238884274QQrdZ1QQsspagenameZWDVW> http://cgi.ebay.com/ebaymotors/WALBRO-255-LPH-FUEL-PUMP-Mazda-MX5-Miata-MX-5-255lph_W0QQcmdZViewItemQQcategoryZ33555QQihZ002QQitemZ120238884274QQrdZ1QQsspagenameZWDVW Wallyman This e-mail and any attachments are confidential. If you receive this message in error or are not the intended recipient, you should not retain, distribute, disclose or use any of this information and you should destroy the e-mail and any attachments or copies.
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