Quote Originally Posted by miko101130 View Post
i have a gen 3 pajero from japan, jdm unit... i completely cleaned the intake manifold and all intake tract including the egr throttle body etc... it was indeed dirty..

1. adding catch can can only reduce the dirt soo much... the catch can is not the major source of engine dirt but the EGR...

2. the Egr is a Necessary evil... if you maintain your EGr regularly there is no reason why you should close/remove it..

3. diesel engines produces more soot than petrol therefore cleaning must be more frequent... i think once a year would suffice..

the auto industry always aspire to lower emission and improve efficiency, the EGR was designed to lower emissions and improve efficiency, there are no immortal car parts! therefore all contraptions on our vehicles needs cleaning and replacing... if your EGR is dirty CLEAN IT.. if your EGR is faulty REPLACE IT,, but don't remove it. there is no guilt-free car.

On newer cars the EGR has a start up sensor, it will do a self test diagnosis by cycling the valve of the EGR to prevent it from stucking up, if its stucking up the EGR will send a fault code and engine light will illuminate..

on older cars there maybe no sensors in the EGR valve, therefore the owner must periodically listen to the thack-thack sound it produces during start up to know if its functioning... you can also manually use a multimeter to know if the circuitry is ok..

the owner is responsible for maintaining the vehicle in tip-top condition so that its emission and performance is good. Failure of a part is not a reason to completely removed it,, everything in your car has a valid function..
sir how did you clean your intake manifold, intake tract?

my EGR is blocked right now. but i have been thinking of just cleaning the unit and make it work again. sayang naman yung technology. its there na. might as well make full use of it/