ShoverRobot
Probationary Member
- 24
- 0
- Jul 29, 2002
-
ft gordon,
Georgia
i cannot figure this one out. I searched and read a bunch of posts on stuttering but i dont really see anything like this.
I did a boost leak test a few days ago and found 4 small leaks and fixed them. While I was at it I did a compression test and it came out to 180 on all four. After I put everything back together I went out for a test drive and promptly blew off the lower intercooler pipe. I had to "drive" it back maybe 1/4 of a mile running like crap to get under some lights so i could see what i was doing. Ever since then my car is acting ridiculous.
When its warm it idles like my buddy's cammed ls1 then it goes away when i give it gas. My short term fuel trim went from around 0-3 to 10-15. I changed nothing on the afc. It also has a totally random stutter while driving. I can't recreate the stutter at all. It will just do it at any rpm, throttle position, or boost level and its violent enough to jerk your head back like the engine completely loses all power for a tenth of a second. I did another boost leak test today and i had one very small leak and also heard a steady dripping noise comming from what sounded like inside the engine and then i ran out of air in the tank.
I pulled the MAS off and looked at it and everything looked ok. I checked the connection and it was fine. I changed the plugs and the old ones were black with a red glaze that i was told is from additives in certain fuels. I know im running rich cause of the black plugs and you can smell it in the exhaust. Im guessing blowing that ic pipe off and then driving 1/4 mile really screwed something up but i cant figure it out. My next step was to run some seafoam through it to clean everything out but i want to know if theres something seriously wrong before i keep driving it around.
Thanks
I did a boost leak test a few days ago and found 4 small leaks and fixed them. While I was at it I did a compression test and it came out to 180 on all four. After I put everything back together I went out for a test drive and promptly blew off the lower intercooler pipe. I had to "drive" it back maybe 1/4 of a mile running like crap to get under some lights so i could see what i was doing. Ever since then my car is acting ridiculous.
When its warm it idles like my buddy's cammed ls1 then it goes away when i give it gas. My short term fuel trim went from around 0-3 to 10-15. I changed nothing on the afc. It also has a totally random stutter while driving. I can't recreate the stutter at all. It will just do it at any rpm, throttle position, or boost level and its violent enough to jerk your head back like the engine completely loses all power for a tenth of a second. I did another boost leak test today and i had one very small leak and also heard a steady dripping noise comming from what sounded like inside the engine and then i ran out of air in the tank.
I pulled the MAS off and looked at it and everything looked ok. I checked the connection and it was fine. I changed the plugs and the old ones were black with a red glaze that i was told is from additives in certain fuels. I know im running rich cause of the black plugs and you can smell it in the exhaust. Im guessing blowing that ic pipe off and then driving 1/4 mile really screwed something up but i cant figure it out. My next step was to run some seafoam through it to clean everything out but i want to know if theres something seriously wrong before i keep driving it around.
Thanks
I still don't know what that dripping noise was though.
