95Sol99civic

I have a 97 civic hatch was auto swapped to 5 spd. Engine is a Z6 with a P28 ecu. There is no engine light but the idle is up n down. I also have a 1998 Y8 intake manifold. Theres no FITV. So am I gonna have to get the ecu flashed to fix that? Any ideas would be great thanx.

95Sol99civic

Hello? Bump Bump

HondaPartsHero

No fitv or no IACV?

95Sol99civic

I have a IACV but its clean n works fine no engine light.

habib

Does it do it constantly even after it is fully warmed up?

apexi_rsx

when the FITV is blocked off u will not have any warm start it should only rev to 1000rpms the whole time even when warm. it sucks not having it in cold climates but ive ran mine this way for some time now with no problems. no u do not need a reflash it will not fix this at all. if its bouncing u may wanna look into how they plugged the FITV and make sure they did the 3wire to 2 wire IACV correctly. look up the 3 wire to 2 wire IACV conversion and double check. if it constantly bounces when cold and warm u may have a vacuum leak.

98civdx

pop the intake tube off.

While runing, cover the TB, if it stays running you have a vacum leak. Any hissing sounds?

95Sol99civic

Well its a 98 Y8 intake. they didnt have FITV its controled by the computer. I have the wiring right cause if not I would be getting an engine light right? I take my intake arm off n stick my finger in the hole, no change. This has really got alot of poeple frustrated lol.

95Sol99civic

yes very annoying.

95Sol99civic

When I had a TB with a FITV it did the same. Im still gonna try and see if theres an intake or vacuum leak. I just wanna check everything.

apexi_rsx

put ur whole hand over the throttle body while its idling. does the car stay running or stumble and shut off?

98civdx

I didn't say stick your finger in, cover it. both hands, hell, put a peice of wood of something over it.

95Sol99civic

Ok ok. lmfao. And if it stumbs n dies? Cause I really dont think there any leaks. Should know in a few.

98civdx

If it stumbles, and dies, thats a good thing. That means you have no vacume leak.

A leak can cuase what you described.

95Sol99civic

Ok then what is the problem after that tho? lol

98civdx

Don't know.

it's an easy test that will eliminate a vacuum

98civdx

Also check the coolant. Air in the cooling system will can this

95Sol99civic

Ok found out that its something to do with the intake gasket. So which gasket should I use the 98 EX or 95 Si del sol? I put the 95 del sol one on the first time so I guess Im gonna try the 98 EX. The funny thing is the 95 gasket is $12.99 the EX is 6.99. WTF? I hope a good up date here soon

95Sol99civic

Ok heres the problem The Y8 manifold has holes above the injectors. It dont matter which gasket I use the holes are not covered. So no what guys? Seal it up? With what?

95Sol99civic

Well JB weld is my friend. Thanx for the help fellas. Now IA is looking promising.