Most of us have CRD vehicles to drag our vans around, most if not all have a thingy called an EGR system, now this system is to keep the emissions okay, it is being phased out but when who knows ?????
This system slowly kills your engine by choking it, firstly it takes the crank case fumes/vapours which are oil laden and these are passed into your air intake, at certain times the EGR valve will open and let dirty, sooky dry air from your exhaust into the inlet manifold, so you will have dry sooty air mixing with hot oily air swirling around together before entering the combustion chamber but it all doesn't end up in the burning area, some gets left behind forming a tar like goop around your intake, slowly closing the port and killing your engine, much like a smokers lungs................
To combat this there are a few ways to stop this happening, whether legal or not who cares !!!!!!, some engines a blanking cap can be fitted in place of the EGR valve but a small hole usually has to be drilled in it as the ECU has a hissy as it gets false air flow readings these can be combined with a diode/resistor set up to tell the ECU what it needs to hear some work some ,well they tell the ECU it's about 5 deg C so the EGR doesn't open but it also lets the alternator charge the battery at a higher rate because it thinks its cold and battery doesn't like it......you can add a catch can which removes most of the oil from the sump vapours before they get to the manifold, venting the can to atmosphere means you don't get any oily air to make any goop.
About the best way is to get the ECU remapped, not a chip, and done by a respectable mob you will not only improve your engines performance it can shut the EGR down, money well spent if you can afford it.....
This came about as it's Service Time for The Ute, a biggy as it gets Engine, Tranny and Transfer Case oil changes, this is also the time when I clean the MAF sensor and this other sensor (MAP) that pokes into the intake manifold ( Colorado ) the pic shows this sensor before I cleaned with MAF sensor cleaner, it's covered in dry black soot after 40,000kms this soot would be gooey but I have a catch can, it works........The intake at the throttle manifold will get a can of throttle cleaner down it later on to hopefully clean any crap built up in the manifold............I do notice an improvement in general running after I give it all a clean, I don't know if they get serviced by dealers regularly or not, I doubt it though.
PS: It is a Manifold Pressure Sensor, I finally got around to Google the number.
This system slowly kills your engine by choking it, firstly it takes the crank case fumes/vapours which are oil laden and these are passed into your air intake, at certain times the EGR valve will open and let dirty, sooky dry air from your exhaust into the inlet manifold, so you will have dry sooty air mixing with hot oily air swirling around together before entering the combustion chamber but it all doesn't end up in the burning area, some gets left behind forming a tar like goop around your intake, slowly closing the port and killing your engine, much like a smokers lungs................
To combat this there are a few ways to stop this happening, whether legal or not who cares !!!!!!, some engines a blanking cap can be fitted in place of the EGR valve but a small hole usually has to be drilled in it as the ECU has a hissy as it gets false air flow readings these can be combined with a diode/resistor set up to tell the ECU what it needs to hear some work some ,well they tell the ECU it's about 5 deg C so the EGR doesn't open but it also lets the alternator charge the battery at a higher rate because it thinks its cold and battery doesn't like it......you can add a catch can which removes most of the oil from the sump vapours before they get to the manifold, venting the can to atmosphere means you don't get any oily air to make any goop.
About the best way is to get the ECU remapped, not a chip, and done by a respectable mob you will not only improve your engines performance it can shut the EGR down, money well spent if you can afford it.....
This came about as it's Service Time for The Ute, a biggy as it gets Engine, Tranny and Transfer Case oil changes, this is also the time when I clean the MAF sensor and this other sensor (MAP) that pokes into the intake manifold ( Colorado ) the pic shows this sensor before I cleaned with MAF sensor cleaner, it's covered in dry black soot after 40,000kms this soot would be gooey but I have a catch can, it works........The intake at the throttle manifold will get a can of throttle cleaner down it later on to hopefully clean any crap built up in the manifold............I do notice an improvement in general running after I give it all a clean, I don't know if they get serviced by dealers regularly or not, I doubt it though.
PS: It is a Manifold Pressure Sensor, I finally got around to Google the number.
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