My 95 GST has been having trouble idling pretty much ever since I got it. I had such a long laundry list of fixes that I'm just now getting around to mess with the idle.
I have a 14b turbo, pushing stockish 9 lbs, a FMIC, 450cc blue top injectors, and recently went through and did a egr block off and cleaned all the unnecessary vacuum lines. It has trouble trying to idle and gets really boggy when I tap the gas to try to keep it alive. If I dont mess with anything, just start it up and see how long it runs, it runs for about 5-10 seconds.
HOWEVER, I randomly pulled off my cold air intake setup from the turbo, and started it up to see what it would do and sound like, and wallah, it ran damn near perfect. According to my A/F ratio gauge its running rich, but it idles at a solid 1100 rpm, sounds great, and even drives great. I put a wire mesh over the mouth of the turbo so random crap didnt get in it and took it for a short drive. Besides what I believe to be a case of boost creep/ fuel cut, it ran gorgeously.
I am thinking that it may be a semi malfunctioning MAF sensor, because about a month ago it still had the same symptoms, but it popped a MAF code. I noticed that the connector for it was dirty as hell and had corrosion on it, so I cleaned just the connector, and it acted better and the code went away and didn't come back.
I really appreciate all the input that you guys give, and if anyone has had any experience with this before I am all ears. Long story short, It runs like shit when my air intake is connected to the turbo, and it runs great when its not connected, except for the fact that its running rich. (it also has a case of potential boost creep/ fuel cut, but that is a different post)
Respect,
Dr. Dan
I have a 14b turbo, pushing stockish 9 lbs, a FMIC, 450cc blue top injectors, and recently went through and did a egr block off and cleaned all the unnecessary vacuum lines. It has trouble trying to idle and gets really boggy when I tap the gas to try to keep it alive. If I dont mess with anything, just start it up and see how long it runs, it runs for about 5-10 seconds.
HOWEVER, I randomly pulled off my cold air intake setup from the turbo, and started it up to see what it would do and sound like, and wallah, it ran damn near perfect. According to my A/F ratio gauge its running rich, but it idles at a solid 1100 rpm, sounds great, and even drives great. I put a wire mesh over the mouth of the turbo so random crap didnt get in it and took it for a short drive. Besides what I believe to be a case of boost creep/ fuel cut, it ran gorgeously.
I am thinking that it may be a semi malfunctioning MAF sensor, because about a month ago it still had the same symptoms, but it popped a MAF code. I noticed that the connector for it was dirty as hell and had corrosion on it, so I cleaned just the connector, and it acted better and the code went away and didn't come back.
I really appreciate all the input that you guys give, and if anyone has had any experience with this before I am all ears. Long story short, It runs like shit when my air intake is connected to the turbo, and it runs great when its not connected, except for the fact that its running rich. (it also has a case of potential boost creep/ fuel cut, but that is a different post)
Respect,
Dr. Dan
