Short ram intake = P150 & P153 error

[skynet1988]

Hey, I know that the short rams and CAI systems have been talked to death here and was wondering if anyone has figured out why after a Short ram intake was installed that the Check Engine light goes on. I get a P150 and P153 error code. I have changed to a K&N cone filter and replaced all three of the oxygen sensors and I still get this problem. What trips the sensor? Heat? intake pressure? I have had this light on for two years and now I need to get my emissions tested at the end of next month. how do I fix this with the short ram? fyi, I have the torpedo style MAF sensor if that makes any difference. Thanks! - J

[mmejia]

When you installed it, did you by any chance have a breather hose that you could no longer connect?

[skynet1988]

I did, a small one that connected to the bottom of the airbox. but i made a hookup for it directly to it on the intake

[mmejia]

Where did you hook it up now? Closer to the throttle body or to the air filter?

If you connected close to the throttle body, it will create a large amount of vaccuum on the hose which will throw off the sensor and cause errors. (I'm not sure what sensor). I did this on mine and it caused CEL to go on and also a wavering idle.

[skynet1988]

right by the filter, I tried to keep the layout as close to factory as possible!