Port and Polish - whats wrong here?!?

[TheBum]

OK, heres the background: 96 honda civic, sohc motor.... We port and polished the intake manifold, throttle body, and just the beginning of the exhaust manifold. We removed the entire head because we were going to do everything, but because of time restrictions, never were able to do the head.

The O2 sensor (no idea if its primary or not, its located on the bottom of the the exhause manifold) was wired up to 4 wires that were located right next to the sensor. When I bought the car, it ran just fine with it not hooked up, and we hooked it up while doing the work.

So after re-assembling everything and getting the timing belt back on, we replaced the spark plugs and gave her a shot. (no timing done)

The engine started and reved by itself all the way up to redline, upon which i turned off the motor. By adjusting the distributor by hand, we could kind of get the car to not rev on its own, but it would die after a few seconds...

Any ideas what we did wrong??

[YOUNGSTER]

maybe the mass airflow sensor idk thats kinda weird

[civickiller]

how much did you port it ? cause maybe you ported it too and the throttle plate is too small so air is getting passed it ? or its stuck open

[TheBum]

I ported the throttle body a good few millimeters, and there may be some extra room around it between the throttle body walls. I am not near the car, and I dont remember if the guy who did most of the work put on a b16a throttle plate to fill the void.

So assume that the throttle plate is sufficiently filling the space that it needs to be.