ruckus Posted October 6, 2006 Report Share Posted October 6, 2006 hey I was wonder if any one has come into the same problem I have. I got a 1997 850 turbo AWD, and I have stucka boost gauge and manual boost controller on it this week. It runs fine when I barely turn up the boost from 5 psi, though When I hit about 7 the computer kicks. I am looking to turn it up to about 10 psi and apparently that is safe with the stock ecu programing. There is a solenoid valve near the wastegate that is hooked up to the vacuum lines, so my buddy and I are figuring that it is sensing the over boost and sending the info to the computer and is venting the boost and going to safe boost mode. Which is like 2 psi, which sucks. We are figuring that we should be about to just cheat the system by by passing the solenoid and just watching the boost gauge to make sure there isn't any over boost. If anyone has run into this problem and knows what is safe to do, any info would be greatly appreciated. Peace,-Ruckus Link to comment Share on other sites More sharing options...
JHEIII874T5M Posted October 6, 2006 Report Share Posted October 6, 2006 http://www.wothrline.com/Cars_engine/M43_M44/M4x_index.htmThis will be done by either opening the wastegate as much as possible in order to lower the boost or if the wastegate rod is turned so much that boost can not be controlled, the ECM will cut spark and fuel in order to lower the engine performance. Link to comment Share on other sites More sharing options...
ruckus Posted October 6, 2006 Author Report Share Posted October 6, 2006 http://www.wothrline.com/Cars_engine/M43_M44/M4x_index.htmWhat about just by passing the solenoid so the ecu doesn't know the boost is high. that would be alright I guess if i stay under 10 psi. I have read that the factury tune is good to about 13.5psi, but I don't want to push the engine to fail. Link to comment Share on other sites More sharing options...
JHEIII874T5M Posted October 6, 2006 Report Share Posted October 6, 2006 Problem is the MAF will detect it and still cut spark and fuel. Link to comment Share on other sites More sharing options...
turbor850 Posted October 6, 2006 Report Share Posted October 6, 2006 hey I was wonder if any one has come into the same problem I have. I got a 1997 850 turbo AWD, and I have stucka boost gauge and manual boost controller on it this week. It runs fine when I barely turn up the boost from 5 psi, though When I hit about 7 the computer kicks. I am looking to turn it up to about 10 psi and apparently that is safe with the stock ecu programing. There is a solenoid valve near the wastegate that is hooked up to the vacuum lines, so my buddy and I are figuring that it is sensing the over boost and sending the info to the computer and is venting the boost and going to safe boost mode. Which is like 2 psi, which sucks. We are figuring that we should be about to just cheat the system by by passing the solenoid and just watching the boost gauge to make sure there isn't any over boost. If anyone has run into this problem and knows what is safe to do, any info would be greatly appreciated. Peace,-Ruckusahhh, 850 Turbo AWD , auto or manual ? Link to comment Share on other sites More sharing options...
maiku Posted October 6, 2006 Report Share Posted October 6, 2006 manualcanada-spec1997 855 AWD LPT MANUAL Link to comment Share on other sites More sharing options...
ruckus Posted October 6, 2006 Author Report Share Posted October 6, 2006 manualcanada-spec1997 855 AWD LPT MANUALYou know it, Canada is the place to be.I am from canada thoughI am in tennesse for schoolIt is the 1997 855 AWD LPT MANUAL, with a eurosport tuning short shirt kit, eurosport poly engine mount, turbonetics manual boost controller,and a gauge. I have only had the car for about 2 months now and am loving it. Gonna get alot more power pretty soon.check out the pic if you want Link to comment Share on other sites More sharing options...
JHEIII874T5M Posted October 6, 2006 Report Share Posted October 6, 2006 What short shift kit are you using? Link to comment Share on other sites More sharing options...
ruckus Posted October 6, 2006 Author Report Share Posted October 6, 2006 What short shift kit are you using? Euro Sport Tuning out of Burlington Ontarioat eurosporttuning.com Link to comment Share on other sites More sharing options...
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