Fixing random issues
Let's see, after the engine started:
Coolant leak: fixed
Fuel leak at the 1MZ filter: fixed (needed an o-ring)
Now I have a couple of other issues, like a random misfire and lean AFR (caused by the planar A/F ratio sensors). I think I know what is causing the misfire. I used quite a bit of moly pre-lube in the engine, and I'm pretty sure some is sticking to the cylinder walls and is burning off. It's quite hard to burn, so it's causing random misfires and some rather pungent smoke. That'll take a couple of thousand miles to burn off completely, but I'll be sure to put some fresh oil in there without moly sitting at the bottom of the oil pan so it won't get recirculated and get on the walls again.
Now the lean AFR is really a fake. The engine is running super rich since it's not getting the right reading from the A/F ratio sensor. I need regular heated O2 sensors and that should be fixed.
Okay, the 1MZ with open exhaust manifolds at 5000rpm is loud. Huh? I can't hear!
Coolant leak: fixed
Fuel leak at the 1MZ filter: fixed (needed an o-ring)
Now I have a couple of other issues, like a random misfire and lean AFR (caused by the planar A/F ratio sensors). I think I know what is causing the misfire. I used quite a bit of moly pre-lube in the engine, and I'm pretty sure some is sticking to the cylinder walls and is burning off. It's quite hard to burn, so it's causing random misfires and some rather pungent smoke. That'll take a couple of thousand miles to burn off completely, but I'll be sure to put some fresh oil in there without moly sitting at the bottom of the oil pan so it won't get recirculated and get on the walls again.
Now the lean AFR is really a fake. The engine is running super rich since it's not getting the right reading from the A/F ratio sensor. I need regular heated O2 sensors and that should be fixed.
Okay, the 1MZ with open exhaust manifolds at 5000rpm is loud. Huh? I can't hear!
Total Comments 0
Comments
Recent Blog Entries by Jason.MZW20
- Fixing random issues (03-29-2008)
- Even more pictures (12-12-2007)
- More Pictures (12-12-2007)
- Pictures (12-12-2007)
- Jason.MZW20's 1MZ V6 Project (11-17-2007)








