From Memory:.. The 300 has a Fuel Rail Temp Sensor to cause a Hot Start to increase fuel pressure.. The Sol Assembly that does this is on the Drivers Side of the Intake Plenum. If you just Jump the Fuel Pressure Regulator Vacuum directly to the Plenum, this hot start gizmo will be bypassed.. Some people do this as part of the 'Clean up' of the Engine Bay.. I tried this but the Smog Police in Ca., dinged me for it.. So I had to put mine back on.. Cj
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