transam600hp

i just put a fast 90/90tb and my car is idleing low and surges on the i dle what could be the problum

SSwanner

iTrader: (128)

did you put the button head valley cover bolts on?

transam600hp

yes i did

waterbug1999

iTrader: (3)

You put all 5 bolts in the TB to attach to the intake? On mine, the top bolt was too short.

TheBlurLS1

iTrader: (8)

Make sure the IAC motor (top driver side sensor on the throttle body) has the O-ring. It's easy to forget to install it (gets stuck in old throttle body) and can cause an idle surge. When you take it out, clean the IAC plunger and re-install.

Drive the car around a bit and it might figure the idle out. It takes the car awhile to "relearn".

transam600hp

yea i got a bolt to fit it

transam600hp

i drives like a monster once u get it moving it also like to die more oftin when i turn the steering wheel

waterbug1999

iTrader: (3)

Also, that sensor in the back (been awhile and forgot the name of it) if its loose, youll get a vacum leak. I made a little "L" bracket to keep pressure down for a good seal.

transam600hp

for the map sensor what did u use to make the bracket

waterbug1999

iTrader: (3)

LOL, I feel like an idiot for forgetting the name of it.. lol

I used a long threaded bolt (kind of like the ones that are used to screw the TB to the intake) and sandwiched a piece of metal (between two nuts) branching out to hold the MAP sensor down on the intake to give it some down presure to keep it sealed better.
A buddy of mine told me to do this before hand.. Its alot easier with the intake off then on the car.
His was surging and after he did this, it went away.

transam600hp

ok i would be cool if u had a pic of it so i can understand it better on my intake it just has a place for the map sensor and like a little pocket to the sid e and down of it

waterbug1999

iTrader: (3)

No pic, sorry.
Im sure you know you cant even see it let alone get a camera back there.. Maybe someone else will pick up on this thread and maybe explain in better or even have a better idea or a pic even. I have just heard of them leaking back there and well, a vacum leak will cause some surging.

transam600hp

will im cause a low idle to have u heard anything good about electric water pumps

waterbug1999

iTrader: (3)

???????

transam600hp

my bad will the map sensor cause a low idle at start up and when u come to a light i was wounding if u heard anything good about eletric water pumps

waterbug1999

iTrader: (3)

Not sure with the low ideling. You know you have an idle screw on the TB right? Dont know if that will help or make it worse by adjusting it. Also, it might just need some small tuning adjustment to fix that as well.. just hard to tell.

EWP's. they are rather pricey just to get a few more pony's. If you got the cash then go for it. I have heard mixed reviews. Some say they are suited better for an all out race car then a DD or a weekend warrior though.

transam600hp

i got one i see a big power differance with the intake and the water pump i put 420 to the ground before these upgrades 530 with nos but now it fells like nos power with just motor

transam600hp

the idle screw help out but then it just went crazy its fine when i am in motion those i just got to watch out for it to die at the red lights would not enuff fuel do this to it

waterbug1999

iTrader: (3)

I dont see why you didnt get a dyno run N/A after the intake, TB and the EWP though.. Thats the only way to tell how much HP you picked up.

What year and car you referring to anyhow since your sig is blank.

dpw41285

iTrader: (26)

its just the nature of the beast 90/90 low end drivability