Intake Manifold Swap

Swapped over Megumi’s intake manifold this afternoon. Here’s before:

And after:

A bit of a mismatch from a cleanliness standpoint—which I hate—but one thing at a time.

Here’s a comparison of the manifolds underneath:

That was before I had swapped over the fuel rails & injectors. Megumi’s manifold is obviously much cleaner, and all the lines are silicone. Nori ran fine, but I had a standing codes 16 and 41 (EGR and VRIS 1). Swapping over the manifold meant that Megumi’s known-good solenoids would go on, and I would have a chance to inspect the EGR solenoids and lines more easily. Sure enough—I had installed the assembly upside-down and a couple of the lines were mis-routed. Got everything reinstalled, and no check engine light. Calibrated the TPS also.

I also swapped over Megumi’s known-good thermostat. Nori runs warmer than I’d like—a bit to the right of vertical; whereas Megumi always ran a bit to the left—so I thought perhaps the previous owner had installed a higher-temp thermostat, but….no luck. The car’s temperature stabilized at exactly the same location.