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More on *flakey* turbo boost
Posted by GLRT (more from GLRT) on Thu, 22 Apr 2004 06:24:31
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I figured out the problem with my inconsistent turbo boost...first the knock sensor was torqued too tight...probably around 25 ftlbs...it was so sensitive at this torque that just breathing on it caused the APC sol. to chatter. It was chattering at idle! I retorqued it to the factory at 10 ft lbs and performance improved dramatically! But, it still wasn't what it should be. So, I replaced the fuel filter and now I get boost into the fuel cutoff...I took the two vacuum/pressure lines from the overboost protection switch and connected them together with a vacuum connector to avoid the cutoff and now I get 20 lbs of thrust.
In summation, I found that the torque of the knock sensor has a direct bearing on how sensitive it is, Furthermore, the fuel filter was allowing the engine to run, but at higher demand wasn't allowing hte fuel to flow freely. I am pretty certain the fuel filter was the original one with 111,00 miles on it.
posted by 64.65.21...
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