VergeTSi
15+ Year Contributor
- 383
- 0
- Jan 18, 2006
-
San Diego,
California
Started to do a BLT on the gsx today and started at the throttle body. Wouldn't go past 7 psi. When I left off the air, it would drop to zero within a second. My buddies helping me out and I myself heard it clear out the exhaust, can feel the air push ahead the side of your head clear. I put the motor to 30*atdc, plugged the bov line from the intake. Looked up the possible causes of leaking air out exhaust and it was...
Listen to your tailpipe for leaks. (EGR, valve overlap, jumped timing, bent/unseated valves
Now I have a few questions to narrow it down to find out what it could be. My car idles fine, runs fine, just back fires at full boost, so it can't be jumped timing right? If it was jumped timing it would run like crap at all rpms? and it can't be valve overlap because I set it at 30* ATDC? 30* ATDC is when you line up the marks on your timing belt correct and the #1 cylinder is all the way up? For thats what I did.
As for my EGR is took out the canister and vacumn lines connecting to the EGR and just plugged the egr holes. Now I didn't remove the EGR, I just capped off the holes where the vacumn lines used to go, can it still circulate out the exhaust?
The only thing I can think of being the possible cause is either the EGR or it has bent/unseated valves, or I didn't set the valves correctly. Sorry so many questions, just want to get my car boosting again. Any ideas?
Listen to your tailpipe for leaks. (EGR, valve overlap, jumped timing, bent/unseated valves
Now I have a few questions to narrow it down to find out what it could be. My car idles fine, runs fine, just back fires at full boost, so it can't be jumped timing right? If it was jumped timing it would run like crap at all rpms? and it can't be valve overlap because I set it at 30* ATDC? 30* ATDC is when you line up the marks on your timing belt correct and the #1 cylinder is all the way up? For thats what I did.
As for my EGR is took out the canister and vacumn lines connecting to the EGR and just plugged the egr holes. Now I didn't remove the EGR, I just capped off the holes where the vacumn lines used to go, can it still circulate out the exhaust?
The only thing I can think of being the possible cause is either the EGR or it has bent/unseated valves, or I didn't set the valves correctly. Sorry so many questions, just want to get my car boosting again. Any ideas?
