TheBlubaru Posted January 13, 2012 Share Posted January 13, 2012 My Subaru was my introduction to the turbo world so I have a lot to learn. I was hoping some of the more experience could chime in. First Situation Driving to the gas station i got down to a little less than a 1/4 tank of gas and my boost gauge never went above 9 PSI. When I filled up I took it back out on the highway and the boost went right back up to 15 like normal. Second Situation A few nights ago headed back from downtown I was at a stop light idling and my car jerked forward as if being rear ended. It made the whole car buck and knocked my hat off. It hasn't happened since then. My car is a 2005 LGT Limited with 76k and a stage 2 Cobb tune. God created turbo lag to give V8s a chance Link to comment Share on other sites More sharing options...
TRSCobra Posted January 13, 2012 Share Posted January 13, 2012 Auto or manual? Link to comment Share on other sites More sharing options...
Moderators BarManBean Posted January 13, 2012 Moderators Share Posted January 13, 2012 any parts on your car? i assume you have what is required to run a stage 2 tune...? "Bullet-proof" your OEM TMIC! <<Buy your kit here>> Not currently in stock Link to comment Share on other sites More sharing options...
TheBlubaru Posted January 13, 2012 Author Share Posted January 13, 2012 5MT and its got a cobb DP and CBE but stock up pipe. God created turbo lag to give V8s a chance Link to comment Share on other sites More sharing options...
TheBlubaru Posted January 15, 2012 Author Share Posted January 15, 2012 Anyone? God created turbo lag to give V8s a chance Link to comment Share on other sites More sharing options...
ericem Posted January 17, 2012 Share Posted January 17, 2012 Probably had bad fuel the IAM dropped and the ecu pulled timing, and ran wastegate boost. Once you filled up the IAM went back up eventually and you regained power and boost. Link to comment Share on other sites More sharing options...
TheBlubaru Posted January 17, 2012 Author Share Posted January 17, 2012 Not to sound like a noob but whats IAM? God created turbo lag to give V8s a chance Link to comment Share on other sites More sharing options...
ouch1011 Posted January 20, 2012 Share Posted January 20, 2012 Ignition Advance Multiplier. Basically under normal condition, its at 1. But if something causes the car to start having a lot of knock or some certain other problems, it will drop the IAM in small increments, which basically takes all the igntion timing tables and multiplies them by .9, .8, .7, etc. Less timing is "more safe" in regards to knock. If the IAM gets to a certain minimum point, it will change the fuel tables to make the engine run more rich and reduces the boost. 9psi is wastegate boost, or basically the lowest boost amount the PCM can command short of reducing the throttle angle. Some vehicles (mainly diesels) will de-rate the engine if the fuel level gets too low. I don't think Subaru does this, but I can't say that for sure. They do say in the owners manual not to thrash the car with less than 1/4 tank. Link to comment Share on other sites More sharing options...
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