StyleElements
15+ Year Contributor
- 217
- 0
- Nov 8, 2004
-
Ortonville,
Michigan
Well this is my story. It all started with taking a very delicious young female for a ride in my car. I did a few WOT pulls down a back road. The last run I did, something happened. The car just did not feel nearly as fast this time. I glanced at my boost gauge and I was running 19psi, when the car was set for about 17. I quickly got out of it, and when I did, the car bogged down a little, and my tach started jerking from 0rpm back to around 1,500, and in between. I first thought I blew an intercooler hose, but as I slowed to a stop the idle was very inconsistent. I shut off the car and checked everything I could with a flashlight, everything looked fine.
This is where it gets weird. After starting the car, it would idle perfect. After giving it a little gas, the tach would drop quickly to 0rpm. The rpms sounded low, but the car would stay running. If I gave it some gas, the tach would climb, but it acts sticky .. or very jerky. It will jerk from different rpms, and back to 0, or back to a perfect idle. I pulled the battery and reset the ECU, and I actually think it got worse. Now its hard to get it to idle correctly even for a second. I had the car trailed home, and this is currently how it acts. If I start the car, the rpms will pretty much always be at 0. I can give it some gas, and they will climb, but the tach is still jerky, and the car is just barely running.
Here is a video of its current condition. The tach does not jerk very much becuase i dont rev it that high (fear of hurting it) but if you watch close you can see it do it a little. The last shot is of my fuel psi, oil psi, and vacuum/boost. Oil psi is perfect, it pulls good vacuum. There is one other strange thing that happends about half the time i start the car. My AFPR is set as 43psi static. At normal idle my fuel psi hangs around 38psi. well for some strange reason when I start the car my fuel psi sits right at about 48psi. if I gas it, the fuel psi will raise from a static of 48, instead of 38 (fuel psi is pretty normal in the vid). all I can really think of that could be wrong is something vacuum related. Only watch the video if you think you could actually possibly know what might be wrong. I only have so much bandwidth. Thanks in advance
Mods Big 16G, 550s, AFPR, walbro 255, SAFC etc...
i really do not think anything is wrong with the motor. it has good oil psi, there is no knock, no funny sounds. every once in a while when it does idle smooth, its VERY smooth. this has to be a vacuum related issue or comuter controlled IMO. (in the video if you cant see, the vacuum hangs around 20psi) the car sounds funny because im in a closed garage that echos bad. also the sound did come out very well anyway. well let me know what you think -
http://www.streamload.com/StyleElements729/car_sucks.wmv
This is where it gets weird. After starting the car, it would idle perfect. After giving it a little gas, the tach would drop quickly to 0rpm. The rpms sounded low, but the car would stay running. If I gave it some gas, the tach would climb, but it acts sticky .. or very jerky. It will jerk from different rpms, and back to 0, or back to a perfect idle. I pulled the battery and reset the ECU, and I actually think it got worse. Now its hard to get it to idle correctly even for a second. I had the car trailed home, and this is currently how it acts. If I start the car, the rpms will pretty much always be at 0. I can give it some gas, and they will climb, but the tach is still jerky, and the car is just barely running.
Here is a video of its current condition. The tach does not jerk very much becuase i dont rev it that high (fear of hurting it) but if you watch close you can see it do it a little. The last shot is of my fuel psi, oil psi, and vacuum/boost. Oil psi is perfect, it pulls good vacuum. There is one other strange thing that happends about half the time i start the car. My AFPR is set as 43psi static. At normal idle my fuel psi hangs around 38psi. well for some strange reason when I start the car my fuel psi sits right at about 48psi. if I gas it, the fuel psi will raise from a static of 48, instead of 38 (fuel psi is pretty normal in the vid). all I can really think of that could be wrong is something vacuum related. Only watch the video if you think you could actually possibly know what might be wrong. I only have so much bandwidth. Thanks in advance
Mods Big 16G, 550s, AFPR, walbro 255, SAFC etc...
i really do not think anything is wrong with the motor. it has good oil psi, there is no knock, no funny sounds. every once in a while when it does idle smooth, its VERY smooth. this has to be a vacuum related issue or comuter controlled IMO. (in the video if you cant see, the vacuum hangs around 20psi) the car sounds funny because im in a closed garage that echos bad. also the sound did come out very well anyway. well let me know what you think -
http://www.streamload.com/StyleElements729/car_sucks.wmv
i really hope its not that 
