Fuel pressure question
11-09-2005, 11:20 PM
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Fuel pressure question How do I check fuel pressure at idle to wot? My stock 99 injectors are at a 90% duty cycle with headers, ls6 intake, ported tb, and catback w/ory at wot. What type of gauge and where do you hook it up. I'm afraid my fuel pump isn't up to par w/85k miles on the clock. BTW I do have HPTuners. I'm installing a cam in the next month so I need to get this checked asap.
Paul
Paul
11-10-2005, 04:00 PM
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Yeah the schraeder valve is an option but I was wondering if you guys were tapping in somewhere else so you can look at wot. I don't feel comfortable free reving my engine with no load. I was really leaning to an interface with hptuners, is there any way to do this? What's the going price for a gauge that will only be used a couple of times?
11-10-2005, 05:12 PM
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Most dyno shops should have a fuel pressure rig ready to hook up for a quick run on the dyno. I'm not sure how to interface it with hpt though. You'd need to find a pressure indicator w/ a 0-5v output for the EIO right? I know there is a fuel pressure pid but I don't think it is active for our cars. You might try asking this question on the hptuner forums, or emailing hpt directly.