6']['9

iTrader: (2)

well i installed my 90/90 this weekend, at first the idle was going from start up @1500 jumping up to 3 or 4 k, then it woudl back down. I backed out the screw with that spring on it and it made a little difference. I also replaced the TPS and it helped a bit. Now the car starts but while driving it feels like the car is going on its own since the throttle is opening up. when i come to a complete stop the idle will raise til about 3k then if i tap the throttle it backs down to about 1100 and will stay there. The SES light came on and it was throwing a P0102 code which is a MAF Code but i dont know what to check to clear this problem.. The car hasnt been dyno tuned since i installed the intake.

Any suggestions?

Midnightrider

iTrader: (1)

same thing happened to my buddies 04 GTO he installed a fast 90 and the throttle was doing exaclty what urs is doing the fast90 is taking so much more air that its messing up the MAF sensor u need to get it tuned

6']['9

iTrader: (2)

so is that all it needs is a tune?

LS1_Unleashed

iTrader: (12)

More than likely, yes. There is a much larger amount of air going through the MAF and the entire motor, so to compensate it dumps more fuel, hence the idle. Get it tuned and it should solve your problems. Keep in mind the stock tb and intake are something like 70-75 mm, and your MAF is around the same size.

FNQUIKWS6

iTrader: (2)

are you sure it isnt a vacuum leak?

when i installed my ls6 intake the same thing happened to me. I had forgot to put the gaskets on the intake.

ICRAZY6

iTrader: (68)

If your thinking its a vacuum leak, while at idle spray starting fluid around the manifold, if theres a change in rpm you have a vacuum leak. I'm saying it's a tune issue. I had similar problem and a tune did wonders.

AutomagicLS1

iTrader: (18)

Did you change the valley cover bolts? I guess the stock ones if you dont change them the fast will not clear and it will crack the bottom of the intake