1hottEG6

Have a b20/wb16 head. I know someone knows the answer to this. Idle is crazy messed up. goes from 1k-3k.(when cold) (when warm sits at 1500) I have researched a lot and did trial and error. Not a vaccum leak, not the IAC, not a gasket leak....any help would be great.

Plan B

the cold idle valve under the throttle body. Take it apart and screw the white ring down tight. That fixes it 1/2 the time.

*edit*
not that it helps, but I learned the other day that 96-00 ex's have different intake manifolds between the automatics and the 5-spds. When they put a 5 spd tranny on an automatic civic it made it idle fucked up like that. They had to replace the whole intake and change some pin-outs I think.




[Modified by Plan B, 1:50 PM 5/4/2002]

1hottEG6

Now im learning day by day, but is there 2 different screws to adj the idle..cause i know of the one about that u can adj. So there is another on underneath i need to adj. thanks

Plan B

Yeah, if you look at the throttle body, there is a valve on the bottom, w 3 10 mm bolts going into it from the bottom. There is a coolant hose going into it also. On the back, towards firewall, of the valve there is a cover with 2 8mm/ phillips screws, take the cover off and there is a metal bullet looking thing with a white plastic ring around it. This thing becomes loose over time and can be screwed back in. This makes the vacume leak, and that's why that happens. Also, if your intake manifold gasket is damaged, that will cause it also.

1hottEG6

thanks a lot man...