wastegate problem?
laythumb114
06-11-2005, 11:34 PM
while riding in my stock 95 gst with the cruise set (a minimal amount of of accelerator constant for a few seconds), i develop a terrible miss. this is can be remedied by just clutching for a second allowing a drop to around idle RPM's. is this a wastegate problem? oil deposits in the intake i think?!
96spyderman
06-12-2005, 02:32 AM
Welcome to AF.com bro!!
what all have you checked?
Spark plugs/gapping? wires... basic maintenance?
How is it under full boost? is the power there?
Just a side note... for some great info on DSM's... check out www.vfaq.com
great for lots of do-it-yourself info....
If ya think it might be oil deposits... have you checked your upper/lower intercooler pipes for oil? if ya have a bad pcv valve you can put boost into your valve cover and it can put some oil into your intake.... I had that problem (oil in intake) but not the one you are having.... I don't know... just throwin shit out to ya....
what all have you checked?
Spark plugs/gapping? wires... basic maintenance?
How is it under full boost? is the power there?
Just a side note... for some great info on DSM's... check out www.vfaq.com
great for lots of do-it-yourself info....
If ya think it might be oil deposits... have you checked your upper/lower intercooler pipes for oil? if ya have a bad pcv valve you can put boost into your valve cover and it can put some oil into your intake.... I had that problem (oil in intake) but not the one you are having.... I don't know... just throwin shit out to ya....
GSXracerGuy
06-12-2005, 10:53 AM
Welcome to AF.com bro!!
what all have you checked?
Spark plugs/gapping? wires... basic maintenance?
How is it under full boost? is the power there?
Just a side note... for some great info on DSM's... check out www.vfaq.com
great for lots of do-it-yourself info....
If ya think it might be oil deposits... have you checked your upper/lower intercooler pipes for oil? if ya have a bad pcv valve you can put boost into your valve cover and it can put some oil into your intake.... I had that problem (oil in intake) but not the one you are having.... I don't know... just throwin shit out to ya....
Well if it seems I have oil in my IC piping...what does that mean?
what all have you checked?
Spark plugs/gapping? wires... basic maintenance?
How is it under full boost? is the power there?
Just a side note... for some great info on DSM's... check out www.vfaq.com
great for lots of do-it-yourself info....
If ya think it might be oil deposits... have you checked your upper/lower intercooler pipes for oil? if ya have a bad pcv valve you can put boost into your valve cover and it can put some oil into your intake.... I had that problem (oil in intake) but not the one you are having.... I don't know... just throwin shit out to ya....
Well if it seems I have oil in my IC piping...what does that mean?
96spyderman
06-12-2005, 03:34 PM
My problem was a bad PCV valve allowing boost to go from the intake manifold into the valve cover and that was pushing oil/oil vapor through the hose on the passenger side of the valve cover that recirculates to the intake pipe just before the turbo... I disconnected the hose from the PCV valve and put a bolt in it for a bit... my oil problem ceased. Quite a few people make a catchcan off of the hose on the side of the valve cover to "catch" the oil instead of letting it go through your intake... I have tried a few different PCV valves but none seal up like they are supposed to... If someone knows of a brand that works let me know!!! otherwise I just see the PCV valve as a boost leak....
Got to www.vfaq.com for the catchcan shit... and tons of other info!!!!! good site to have!!
Got to www.vfaq.com for the catchcan shit... and tons of other info!!!!! good site to have!!
laythumb114
06-13-2005, 01:03 AM
Welcome to AF.com bro!!
what all have you checked?
Spark plugs/gapping? wires... basic maintenance?
How is it under full boost? is the power there?
Just a side note... for some great info on DSM's... check out www.vfaq.com
great for lots of do-it-yourself info....
If ya think it might be oil deposits... have you checked your upper/lower intercooler pipes for oil? if ya have a bad pcv valve you can put boost into your valve cover and it can put some oil into your intake.... I had that problem (oil in intake) but not the one you are having.... I don't know... just throwin shit out to ya....
chrecked the compressor output line and i do have oil residue there...bad seals in the turbo? what am i asking is can this be causing my power loss at a constant cruising speed? any time in which i am varying the accelerator depression, i'm fine... no miss...so...???
what all have you checked?
Spark plugs/gapping? wires... basic maintenance?
How is it under full boost? is the power there?
Just a side note... for some great info on DSM's... check out www.vfaq.com
great for lots of do-it-yourself info....
If ya think it might be oil deposits... have you checked your upper/lower intercooler pipes for oil? if ya have a bad pcv valve you can put boost into your valve cover and it can put some oil into your intake.... I had that problem (oil in intake) but not the one you are having.... I don't know... just throwin shit out to ya....
chrecked the compressor output line and i do have oil residue there...bad seals in the turbo? what am i asking is can this be causing my power loss at a constant cruising speed? any time in which i am varying the accelerator depression, i'm fine... no miss...so...???
Automotive Network, Inc., Copyright ©2026