Krusty wrote:
As far as your lack of power, it sounds like either a plugged up catalytic converter, or the fuel pump is failing. To determine if the exhaust is plugged, you could remove the oxygen sensor from the exhaust and drive it under load to see if some power is restored. It will of course be much louder. You could also install a pressure gauge to measure the amount of back pressure.
To test fuel pump, connect a fuel pressure gauge to the Schrader valve and drive it under load. Fuel pressure should be above 35 psi and not drop below 30 psi under load. If you haven't already, make sure to check your air and fuel filters first.
Looks like this is the next step. Got everything bolted back together and took her for a test run, and the exhaust manifold is glowing red. Also, a funny sound from the top of the engine when she is working hard to go up a hill, loud and kind of like a 2-stroke motor. Also found another small exhaust leak on the manifold on the starboard side of the engine, where the manifold bolts to the engine. Really feeling like a clogged cat. Could I rod out the cat to test it? Or is that going to mess with some kind of sensing system. Obviously not a long term solution as it's illegal to drive it like that I'm pretty sure.
