Anyone knowledgable about tracker valve in the Opti's? Mine's been in the shop for 3 weeks. Replaced all plugs and 1 coil. Cranks, idles, throttles up perfect, when throttling back down gets real rough and usually sputters out. He tested fuel pumps, all good. Pressure tested air and fuel side, all good. Said air pressure was a little high but thought it was his gauge. I read where tracker valves can be an issue. So I pulled it off and don't find any holes or tears but without the cover and spring putting pressure it is seeping fuel from behind the diaphragm. Is this correct or is that an issue?

Inline 3 cyl Optimaxs do not have a tracker valve you have air pressure regulator and fuel pressure regulator the tracker valve is only on V-6 models and it is to eqaulize the air and fuel at a 10 psi difference between the two banks. The top regulator is your fuel and the bottom is air. .....OPTI

Ok, good to know. Thank you sir. I should be receiving my injectors in the next few days. If that doesn't fix it I'm at a loss. Are you a mechanic? Work on Optis?