Subject	Gas cap is good. Question on boost leak tho >>
Posted by	Greg (Dallas) on September 27, 2002 at 9:49 AM
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In Reply To	Have you checked for boost leaks? How is the gas cap? posted by wcoffey on September 27, 2002 at 09:29 AM
Message	I was wondering about this which is what led me to test the vacuum signal to the FPR. Wouldn't it make sense tho, that if I DID have a boost leak, my BOOST would either not go up or would drop just as dramatically as the fuel pressure? That's what I don't understand. I start boosting, boost psi goes up, fuel psi goes up, rpms go up. I hit full boost (or near it), boost psi goes up or stays steady, rpms go up, fuel pressure drops radically (7-10psi). How could a boost leak affect ONLY fuel pressure so disproportionately to manifold pressure? Meddle not in the affairs of dragons, for you are crunchy, and good with mustard.
Follow Ups	Fuel pressure drops under boost. Any thoughts? (detailed) >> - Greg (Dallas) 09:21:24 09/27/02 Have you checked for boost leaks? How is the gas cap? - wcoffey 09:29:43 09/27/02 Gas cap is good. Question on boost leak tho >> - Greg (Dallas) 09:49:16 09/27/02 As far as the boost leak, I had a large hole (dime size) - aZiator 10:40:59 09/27/02 Yeah I can understand that BUT >>> - Greg (Dallas) 13:18:39 09/27/02 I have a huge boost leak, but still can get full boost. - wcoffey 10:49:05 09/27/02 All fuel temp sensor does >> - Greg (Dallas) 15:25:11 09/27/02 How about the Fuel Filter? Do you have an OEM around??? (n/m) - wcoffey 17:20:43 09/27/02 Have you checked the voltage being sent to the Fuel Pump? - Carlos Ramirez 09:43:37 09/27/02 Yep, votage is good >> - Greg (Dallas) 09:46:01 09/27/02 yes take it out.. (n/m) - Carlos Ramirez 21:17:34 09/27/02 have you swapped the PVR sinanoid?(SP) seems like that's - Halo Z 12:56:13 09/27/02 Yeah, swapped as in ripped it off and in the garbage. :-) >> - Greg (Dallas) 13:13:18 09/27/02 haha. (n/m) - Halo Z 13:33:56 09/27/02 Measuring fuel pump voltage shoulddothe same, BUT - Chip(GinnMotorsports) 13:21:07 09/27/02 No, but here's more info (after testing today) >>> - Greg (Dallas) 14:27:39 09/27/02 Mine lost fuel pressure at ~1 psi boost. - Chip(GinnMotorsports) 14:49:47 09/27/02 Just a thought... - CatDaddy(OKC) 16:40:07 09/27/02 I've looked and haven't seen anything obvious. - Greg (Dallas) 16:47:49 09/27/02
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