dgmeadows

I have an '05 GT with 169,000 miles. I went through the injector issue a LONG time back - probably 3 years and 85,000 miles ago. Replaced two injectors with factory replacements from subarupartswarehouse.com, sent those to deatchwerks for rebuilding and have been ready for another to go, but they never have. At ~168,000 miles, the turbo finally went (I know, I am lucky to go that far.) Local ASE mechanics (not dealer - dealer here is not good option) tried to replace the turbo with aftermarket brand to save some $$ and gain some power. Did not go well, that turbo came apart in the first 200 miles. After the repair of the bad replacement turbo, I started getting the rough idle issues like you describe - would often choke out at stop lights, but ran pretty well at higher RPMs. Cleaned MAF, ran the codes and shop said it needed a "tumble generator valve position sensor" - problem is, you cannot buy that sensor, you must buy the intake manifold assembly, which has that sensor pre-installed. If your shop is relating this issue to the intake, it might be this sensor. I called SOA and complained about requiring people to buy an intake manifold assy just to get a $50 sensor which attaches with two machine screws to the outside of the manifold. No response to date. By the way, my 2005 with 169,000 miles has ~150 on the compression test.... I think I lucked out with the durability of the powertrain I got on this one...

I bought my 05 LGT M/T used in 2006. I did not get the warranty notice on the fan relay (although I did buy from a Subaru dealer.) I got a CEL over the weekend & car was running rough. Took it to an Advance Auto Parts & hooked up the computer. MAF sensor & misfires on 2 & 4. Cleaned MAF and CEL went off, still rough running. I did not notice the fan running all the time; have no idea how long that has been going on. It is hot here in GA so I have windows up & A/C on most of the time. Limped home to local (i.e., trustworthy) mechanic, who checked the coils and plugs & said they were OK. They told me about the Tech Bulletin on the fan relay, & said I needed to go to dealer on that, as the ECU could be damaged from the fan relay, which could be causing my misfires. When I cranked the car the next morning to take to dealer, it was idling smooth, but started rough running again when I got into town (~ 15 miles). Dealer had to order fan relay part, but they called today saying I need new injectors for 2 & 4 at $476 (1) Don't they need to be replacing my ECU as well as fan relay, since the fan was definitely running from start-up, or is the ECU replacement only if the fan runs from start up after they replace the relay ? (2) Do we need to get the fan relay & ECU issue resolved before concluding that the 2 & 4 injectors are bad ? It is just curious to me that two injectors would simultaneously go bad, so I am thinking it could be in the ECU ? (3) If I do need injectors, is $476 a fair charge ?... I've seen posts on here that the parts are ~$90 each, and it takes mere minutes to pop them out & in. (4) Lastly, any recommendations on which diagnostic unit to buy ? I am thinking I need to get back into doing my own work... Thanks for all help.