Engine revs high

[minsu515]

Hi everyone!

I got my car to start after changing the spark plugs and the coil packs.

Spark plugs were BKR6EIX before but I found out that BKR6EIX-11 were for turbo cars so,

I now got BKR6EIX-11's on the car,

Coils packs were second had but they are working well.

Anyways, now when I start the car up it first revs at about 1500rpm for about 2~3secs then goes up and up to 2500rpm.. and stays there..

While I was changing the plugs, I removed the throttle body to clean it with a rag, and removed the excelerate cable off the throttle.

What maybe the problem?

[minsu515]

I also took the crank angle, camshaft position sensors out and wiped it with a rag

[Guest boostcut]

i hope you just re gapped the plugs? and dont worry about the 11 bit as its 1.1mm gap. re gap the plugs to about 0.7 0.8mm

otherwise they tend to blow out under boost.

its probably the icv causing the high idle, just blip the throttle and see if it goes away. it will be the air bypass valve on the manifold

[minsu515]

 boostcut said:

i hope you just re gapped the plugs? and dont worry about the 11 bit as its 1.1mm gap. re gap the plugs to about 0.7 0.8mm

otherwise they tend to blow out under boost.

its probably the icv causing the high idle, just blip the throttle and see if it goes away. it will be the air bypass valve on the manifold

oh.. sorry I actualy had 11's in it then now got 0.8mm ones

[Guest boostin]

Throttle cable too tight?

[minsu515]

 boostin said:

Throttle cable too tight?

nope.. I loosened it to see if it makes any differance, but it doesnt...

[Guest boostin]

Got a can of brake cleaner handy? Spray it around the throttle area. If the revs pick up more, you have a vacuum leak.

[ReubenH]

 boostin said:

Got a can of brake cleaner handy? Spray it around the throttle area. If the revs pick up more, you have a vacuum leak.

That's a fucking neat trick.

[DRFVDR]

and once again Boostin is giving away all the mechanics secrets

DAMN YOU

[Guest boostin]

 DRFVDR said:

and once again Boostin is giving away all the mechanics secrets

DAMN YOU

Haha, but they still have to fix it!! It may end up at your place!

[minsu515]

Got the car running for about 1~2minutes then started going back to normal idle,

but I was pretty sure it was an air leak somwhere,

and I found out that the bov is opened at idel and air has been coming out through it,

and when I press the gas paddle, engine revs bounces down and up few times then goes back to normal.

but bov is shut when engine is off,

when I was rebuilding the bov because before there was compressor surge and could hear fluttering,

in the bov there was 2 springs, one stronger than the other,

So I took the softer one out because I thought the bov wasnt opening,

Now I can hear bov when release paddle while driving,

but air leaks out of it..

[Guest boostcut]

sounds like you have put the spring and piston in the wrong way around?

[minsu515]

 boostcut said:

sounds like you have put the spring and piston in the wrong way around?

um im sure I havent because it is a greddy type rs so didnt even bother to take the piston out

[Guest boostcut]

does the valve leak at idle? if it does, its damaged or incorrectly fitted or adjusted

[minsu515]

 boostcut said:

does the valve leak at idle? if it does, its damaged or incorrectly fitted or adjusted

yeah I guess its on soft so the springs not stiff enough..

but when I had 2 springs in it, even on the softest, valve didnt seem to open as I heard flutter..

and yes, the bov valve is abit opened on idle and idles rough, then I shut it down with my fingers, idles normal.

I will try adjusting it to hard and get back to you tomorow,

Thanks for helping out man! ;D