motor reving to 5 grand when started

[newcomeraccord]

i just put my new f22a1 motor in and after i start it i have to turn it right back off because it revs up over redline and just keeps climbing so i turn it off because it sounds like it is going to blow itself up. so what do u think the problem is?

[dwf137]

sounds like compression. it seems like it's turning over too easy. try throwing some oil into the cylnders and let it sit for a few hours.. then try starting the engine again.. Honda engines are known to dry out, and lose compression after sitting for a while without running..

if that dosnt solve it , i guess it could be a throttle cable problem.

[VRDrvr]

When you turn on the car do you get any CEL's?

First thing I would check would be throttle cable as already stated.

[Fearit22]

Throttle cable can do that ... or a bad TPS

[kidd262]

i thinks you have to check this 3 item

1.Your Vacuum line

2.your EACV and Thermovalve

3.Re-set your ECU


Just search it in this forum. you will know


hope it will help you

[Dutchaccord]

CHECK THE THROTTLEBODDY FIRST

make sure it closes all the way

[newcomeraccord]

checked trottle, vaccum, and did a self diagnostic test on it and got no cel's
so i thought it might be the iac but since there are no cel's than it can't be that so i don't know what it is

can anyone else help?

is the fast idle vavle part of the iac controller if so can the fast idle valve be bad and not throw a cel or will it have a cel because it is a apart of it of the iac system

[newcomeraccord]

anyone?

[Dutchaccord]

check the manni for vacuum leaks...

[newcomeraccord]

no leaks. do u think it could be the fast idle vavle?

[Dutchaccord]

mm.. could be... remove it and put a plug in the hole... then ull know.. cant tel from a distance

good luck

[newcomeraccord]

plug the hoses that go the fast idle vavle or take it off and plug the holes that are behind the fast idle vavle?

[newcomeraccord]

ok now when i start it the rpm's go to 3 grand then slowly back down to 1 then soon as it hits 1,000 rpm it revs back up to 3 over and over again. fast idle vale?? anyone?

[kccb7]

that sounds correct, but i might just be a vacume leak. thats one thing i hate about my cb7..........too many vacume lines!! does it stop idle surging when it warms up?

[newcomeraccord]

no just keeps doing it. i have only had it on for about 5 min strait tough so it should of warmed up. how many vaccum lines are there. i'm almost positive that i don't have any leaks

the reason i only had it on 5 min is because all i have on it is my header and i know the people we live by don't appreciate it much