Mean engine surging no codes..Need Help

[bbrianr]

Well since you guys got me straightened out on my engine ground problem, I now have new issues.

The new engine jumps idle from 900-1600RPM in one second intervals.
No codes on the computer, and it will drive fine. but the idle is jumping badly all the time. I have a spare idle control solonoid, and swapped it on, but still jumps.

Also, I have massive Crankcase Vacuum. When you pull the oil fill cap off, the vacuum releases and you can put you hand on the hole and it will suck your hand down. I have good compression on the cylnders, but don't know where this vacuum is from.

Any suggestions would be helpfull

Thanks
Brian

[SiZ]

http://www.honda-tech.com/zerothread?id=343980

Check that thread..

[fiercecivic]

mines been doin that for a while and ive posted about 10 threads on it but noone can help me it seems, so im gonna have to live with it

[EF You]

read that topic he linked, it works

[SiZ]

Totally.. I've had this problem twice in my past cars, and that information posted in that thread works. Thats why I posted it here.

[fiercecivic]

mine dosnt really serge anymore it gotten worse so now it idles at like 200 to 600 and almost stalls at sum points, and its getting harder and harder to start the car. But when get above 2500 RPM its perfect. It chugs up till 2500 rpm. When the car dosent start sumtimes the check engine light comes on while im turning it over then it start flashing a code 16, which is my feul injectors Im really stumped on thsi one.

[bbrianr]

I printed that link's info, and started working on it. I have had no luck as that the throttle body he describs is different on my HF and does not have the FITV that is described in the article.
I have put on a new IAC and still have surging bad!

Any suggestions within reason will be tried.

I have noticed that if I pull the vacuum line off the top of the throttlebody, the idle stabelizes, but the engine misses bad during acceleration.

HELP??

Brian

[EF You]

Originally posted by fiercecivic
mine dosnt really serge anymore it gotten worse so now it idles at like 200 to 600 and almost stalls at sum points, and its getting harder and harder to start the car. But when get above 2500 RPM its perfect. It chugs up till 2500 rpm. When the car dosent start sumtimes the check engine light comes on while im turning it over then it start flashing a code 16, which is my feul injectors Im really stumped on thsi one.

clean your injectors. and check the connectors on them. change your fuel filter

[fiercecivic]

ive changed my fuel filter two times in like two months so im sure its not that. And i keep getting the code 16 so im gonna replace the injectors, cause im getting pissed off cause i can barely drive it. Anyone know what injectors are worth?? in canadian funds

[SiZ]

Try a different ECU in your car.
Check for vaccum leaks around the IM.
Make sure there isn't bubbles in your coolant.
Reset your ECU.
And, ovbiously your IACV.