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Mitco39 · 06-04-2015, 08:44 PM

Just got to Vegas, fuel pressure was fine till the temps got up to about 210-220F and the idle fuel pressure dropped down to 40-50PSI and I could confirm that it was low because my AFRs were showing leaner than it was when it was at 58PSI.

I am really starting to think this regulator is being affected by heat and that spring that regulates pressure is getting weaker with the heat.

Possible?

06-04-2015, 08:44 PM	#28 (permalink)
Mitco39 A True Z Fanatic Join Date: Aug 2012 Location: Edmonton Alberta Canada Posts: 2,089 Drives: 40th 370z Rep Power: 131	Just got to Vegas, fuel pressure was fine till the temps got up to about 210-220F and the idle fuel pressure dropped down to 40-50PSI and I could confirm that it was low because my AFRs were showing leaner than it was when it was at 58PSI. I am really starting to think this regulator is being affected by heat and that spring that regulates pressure is getting weaker with the heat. Possible? __________________ 2007 Chevy Duramax - EFILive Tuned By Me 2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her My Build --> http://www.the370z.com/members-370z-...39s-build.html