dminah21

To keep a long story short, I bought a short ram intake (correct item for my car). I was keen to make sure it had the MAF sensor first and the two bung holes after. I disconnected the negative terminal of my battery, connected the hoses properly and made sure there were no vacuum leaks. I started the car and I could tell immediately it wasn't happy. RPMs went from its usual 700-800 and started falling to 400-300 and then it shot back up to about 1500. I turned it off and turned it back on and gave it some blips. I didn't see a CEL but I can tell it wasn't happy. Can someone shed some light on my situation and give me some tips/pointers to get it running properly?

Kyle Harty

iTrader: (17)

Have you driven it a little to let the computer adjust itself? My car with a K&N idles low for a bit after the battery has been disconnected. It goes back to mormal after the computer has had a chance to learn and adjust itself.

dminah21

I havent. I let it idle for a few minutes and saw it wasn't happy so I just took it back out and put the stock air box back. I did some more research and noticed that the stock diameter that the MAF sensor is located is actually 2.6" while the pipe that I put in had a diameter of 3". Im assuming this is why more air is going by than the car actually notices so ofcourse it will run lean. Should I put the intake back and drive it around?

SoCal Cyco

iTrader: (20)

you need to drive it and let the computer relearn, should be fine. I have a 3'' intake on my 01 gs300 and have no issues

dminah21

Did it hesitate during acceleration while it was getting used to the intake? Or did it do anything wierd?

SoCal Cyco

iTrader: (20)

nope, i let it idle for a few min then drove it

tommyGS3

iTrader: (4)

as long as you use the provided hoses they gave you, you shouldn't have a problem..

burteboy

Chances you have a vaccum leak.

gsean400

Clean your maf sensor and check the connections.. i actually just had a low idle problem and it was fixing itself also after low rpms. But i fixed it by cleaning the maf and blowing on the connectors.

hnlcelsior

Running into the same problem. I can’t even drive it cause it just Boggs and dies. I put the stock box back on. Perfect nothing wrong drives fine. Fml. Any ideas. Could it be a junk filter. I’m using a hks mushroom filter with a 3in short ram intake pipe.