Which finally brings me to the PRC solenoid and and fuel pressure regulator (FPR). I am hoping the sea foam treatments can help me avoid having to have the gas tank removed and cleaned. I changed the gas filter and wondered how the **** this car got fuel to the injectors it was loaded with dirt, what seemed like lint, and moisture droplets in this filter and no telling what is in the tank the the return line from the fuel pressure regulator. I put sea foam motor treatment in the gas, and added antifreeze to protect from over heating and coolant engine block freeze up. The car had been sitting for months and maybe years, so now I am hustling backwards to try get it right. In the past month, I did nothing but eat, sleep, pee and poop learning about many problems with is car. I am still getting persistent P 0170/0173, 1526, and 1540 trouble codes and have been nipping away at these problems, and depending on driving encounters I might also get a P0725 in the mix when car goes into limp mode when it constantly goes into TCS light off coming on mode. I am getting to it, but I would be remiss if I didn't tell this tale of the Millenia S blues. I have heard said that this is a vacuum hose whoar, and I have seen it for my self it is true! In addition to this he replaced many pieces of leaky vacuum hoses and tees. Then the power steering pump and high pressure hose had to be replaced and of course. 044) so the plugs and wires were replaced as well as new intake manifold gaskets. Next, the valve covers were leaking oil and was fouling the plugs (plug gap is. The next we braved it and took to a mechanic friend of my brother, and after 3 weeks the shop, the following was done as needed repairs: R&R Serpentine drive belt and a complete Timing belt kit with new idler and tension pulley as well as cam shaft seals, the belt was coated in oil and had jumped timing and the leaky water pump (that's where the oil and coolant came out of). We got pushed off to the side of the road. I was following her in my own car, and this occurred just in time for the Gainesville Florida rush hour on Archer Road by Rt 75 north on ramp, and **** people were nasty and rude to us, but a Sheriff stopped by and a good Samaritan mechanic who promptly installed his scanner and the Data port was dead, gee I wonder why? On the return trip from the parts house and new battery install, the car broke down. The next day, I had to replace the battery and thus begins this tale of woe. The car broke down just miles down the road from where she bought it, and it was low on water and oil, once those things were added, she managed to get home. The **** thing had been sitting in a yard for who knows how long. The apple in her has been costing a ton of money and **** to pay for this blunder. She fell in love with the look of the car and could not resist buying it without even thinking about getting any advice from me. Hi guys! My girl friend recently bought a 99 Millenia S and I am suffering (I am retired HVAC tech with a messed up back and a host of other physical challenges). (I haven't removed the front and rear intercoolers, I just borrowed this pic from GSRex's guide, because it shows the engine without the MSE cover). From right above the supercharger pulley on the one side, to the other end of the fuel rail on the opposite side of the engine. The hose runs under the area in the pic with the dotted red line. I don't want to service those parts, I just want to replace the vacuum hose burried under them. (Not sure why - maybe the can be ruined if not done correctly). In the service manual, it strongly discourages removing those parts unless absolutely required for servicing them. I looks like I have to at least remove that to change the hose. The problem is that it is burried under the long intercooler pipe that connects the front and rear intercoolers to the supercharger. My question is has anyone ever changed that hose? This may be what is causing the poor fuel economy, because the engine is running rich all the time and wasting fuel. I think the vaccum leak is causing a false cut in pressure to the Fuel Pressure Regulator, causing the Fuel Pressure Regulator to run richer all the time thinking it is always in hot restart mode. The PRC solenoid valve cuts pressure to the Fuel Pressure Regulator to make starting a little richer during hot restarts. Discovered a big hole in the vacuum hose that goes from the PRC solenoid valve (Pressure Regulator Control) to the Fuel Pressure Regulator. I removed the "Miller Cycle Engine" plastic cover because I was hearing a "hissss" sound under there. I am getting poor gasoline fuel economy - 15.5 mpg.īeen trying to figure it out for a while.
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