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Home   Forums   Events Calendar   NWSTP Admins   Guestbook   FAQ   RSS   Register Active Topics | Active Polls | Resources | Members |   | Live Chat | Avatar Legend | Search | Statistics [ Active Members: 0 | Anonymous Members: 0 | Guests: 2 ]  [ Total: 2 ]  [ Newest Member: Musicpub ]  All Forums  NWSTP  Sy/Ty Help  Strange problem in 92 Typhoon Note: You must be registered in order to post a reply. To register, click here. Registration is FREE!  Posting Form Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Callouts: Message Icon:                             Smilies No Smiles Found [quote][i]Originally posted by Roland[/i] [br]Well, what does your scan tool say when it starts bucking? Is it too lean, too rich, too much knock retard, what? Don't worry about changing boost levels at the moment until you resolve the bucking issue. More boost is only going to make it worse. I have an older HKS EVC (series 2) in cab controller and it works great. [/quote]    -  HTML is OFF | Forum Code is ON    Insert a File     Check here to include your profile signature. Check here to subscribe to this topic.      T O P I C    R E V I E W tjwong Posted - March 06 2007 : 11:57:00 PM I am working on a 92 Typhoon, it has a modded engine with a slightly larger turbo from unknown sources. The problem is when it makes boost to around 13 PSI it starts bucking, I had raised the high boost fuel cut but I don't beleive that is the issue. Typically I would see the AFR on the wide band go very lean if a fuel cut occurs, and I don't see this, this is happening on my dyno, when the boost hits near 12 to 14 psi. Also I tried to actuate the waste gate solenoid via a tech2 scan tool, I can manually manipulate the EGR solenoid, check engine lite and whatever else but the wastegate solenoid remains inoperative when commanded on via the tech2. I have check to make sure that there is power to the solenoid via the wastegate solenoid control relay. The wiring to the ecm was also verified. I am suspecting the ecm as that could have a bad driver for the wastegate solenoid. The turbo makes about 15 psi with the vacuum hose disconnected from the wastegate solenoid. It makes about 12 when its connected, but I doubt that the ecm is controlling the solenoid. Any ideas that some one can pass on. Also the owner supplied a HKS EVC electronic boost controller that another shop attempted to install and could not get it to work. I checked the wiring and it appears that it was wired correctly, it is still not working. Any suggestions on a preferred electronic boost controller for in cabin use that works good? 1   L A T E S T    R E P L I E S    (Newest First) Roland Posted - March 13 2007 : 5:36:39 PM Well, what does your scan tool say when it starts bucking? Is it too lean, too rich, too much knock retard, what? Don't worry about changing boost levels at the moment until you resolve the bucking issue. More boost is only going to make it worse. I have an older HKS EVC (series 2) in cab controller and it works great. NWSTP Forum © 1998-2011 NWSTP
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