Zerocygnal
20+ Year Contributor
- 641
- 1
- Jul 1, 2002
-
Springfield,
Ohio
Here I am leaving the gas station and before I pull into the street I happen to glance at my (aftermarket) boost gauge. It's reading 0...impossible I thought..stomped the gas to see if the needle moved and it only went into the boost area of the gauge up to about 3psi...then fell back to 0...? At a stop light I get 13hng usually it sits about 18 or so. As I pull away and start moving, I get to second gear and decide to give it some boost...only goes up to about 10.5 or so. Usually I get 15 with a creep to 18. I get home the engine is idling like crap, missing at about 500rpm.
I'm thinking vacumn leak right? I go over every hose I can think of.. All of my emissions are removed, has been for some time...EGR Valve is still there, but capped off. I put a vacumn hand pump on the hose junction at the fuel pressure reg and everything held with no leaks. Checked and even replaced most of the other hoses since I planned on doing this anyway.
Start the engine up, runs like a charm. So I start going again, I'm getting 18 vac/ 15psi boost. Cool it's fixed....next stop light engine warms up a little more and it starts it's #### again...cept i'm getting 13vac.
Intermittent Vacumn problem??!!? Some suggestions Please!
Is the damn EGR Valve opening and causing an intake leak?? The intake gaskets? I went over all the connections around the throttle body area with soapy water and ran it..nothing...sealed fine.
Suggestions?
I'm thinking vacumn leak right? I go over every hose I can think of.. All of my emissions are removed, has been for some time...EGR Valve is still there, but capped off. I put a vacumn hand pump on the hose junction at the fuel pressure reg and everything held with no leaks. Checked and even replaced most of the other hoses since I planned on doing this anyway.
Start the engine up, runs like a charm. So I start going again, I'm getting 18 vac/ 15psi boost. Cool it's fixed....next stop light engine warms up a little more and it starts it's #### again...cept i'm getting 13vac.
Intermittent Vacumn problem??!!? Some suggestions Please!
Is the damn EGR Valve opening and causing an intake leak?? The intake gaskets? I went over all the connections around the throttle body area with soapy water and ran it..nothing...sealed fine.
Suggestions?