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The Boost is Back! Thanks USMB.


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I posted many weeks ago with a sudden drop in boost in my 2005 Baja turbo.

Since so many of you have been so helpfull I wanted to thank you and keep you all updated. I drove my Baja from Montana to California for bussiness. seems the gas in California is even worse than we all thought. I was getting 12-14psi of boost in Montana. (Good gas) In california after using the gas there I started getting about 6-10psi. (Bad low octaine Oxygenated gas!) Wow I didn't know that. I took the car to the dealer, they scanned it and found nothing. They did reccommend Chevron gas. Though it is still oxygenated gas, just a little better quality. Still low boost.

I took it back again to the dealer again, they reset the ECU. Tech said car is running good. I explained about the boost to the tech this time, not the advisor. He said 6-10psi is normal. By now it's been about a month and I 'm getting pissed off. I know 6-10psi is low. I bring the car back a third time.

I finally got the tech to admit that ths Baja has the potential to put out that kind of boost, in the right conditions. (I hope I'm not boaring anybody with this.) Tech says ECU mapped out less boost since gas in California sucks.

The tech says I am persistant. Needless to say I make some phone calls, do some quick dissconnects and now I got my boost back. I have to use a Racing Octaine booster cause the gas sucks in California and be carefull not to overboost the engine causing it to blow up. Now I can get short bursts up to about 20psi. But it's more like 14psi cause the engine knock controller will cut the engine at about 15psi usually. But the better gas I use, the more boost I can get. But I am afraid to go over about 14-15psi cause I don't want to blow the engine. I am sastified. Thank you SUBARU3 and Texas S

and any body else I might have forgotten, Greg...

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