Zero boost (sometimes), no error codes, HELP please!
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From: Always Sunny & beautiful, Costa Rica
CLS55 AMG, ML63 AMG, Cayenne S
This might not even remotely connected but just run your hand behind the S/C and see if a pipe is hanging loose. I forgot what it's called. It's like a hose and has no lock to keep it connected. If that hose is loose then you will lose boost and you will feel what you are feeling now. That's what happened with me.
-hose behind the SC is loose
-a couple of hoses were loose
-one of the pulleys below the SC is in bad shape
A couple of things they noticed, my car is completely de-cat, and my mechanic plugged all 4 O2 sensors where the primary cats would be, dealer tech says they need more space between them, does that make sense?
Last, but not least, looped fuel rail and injectors, dealer tech says the injectors don't seem to fit properly, like "they don't go all the way in", and they show residue, like "leftover fuel after injection"...
Any and all feedback would be greatly appreciated.
Last edited by Kelvin07; Jul 3, 2014 at 02:01 AM.
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From: A to the Z (the state)
'06 E55
Fitting that looped section of the fuel rail can be really tricky. I spent about half an hour messing with that part trying to get it just right. It's really rigid and can make it difficult to get the injectors to seat properly. I had to loosen the fittings to the looped part until I had the rail snugged down and injectors fully seated, then I tightened the fittings.
As for the O2 sensors, you may need "cheaters" for the rear sensors. They are like little pipes that plug in where the rear ones go and then the sensors screw into those pipes. Having all those sensors so close probably had something to do with the fuel consumption.
As for the O2 sensors, you may need "cheaters" for the rear sensors. They are like little pipes that plug in where the rear ones go and then the sensors screw into those pipes. Having all those sensors so close probably had something to do with the fuel consumption.
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From: Always Sunny & beautiful, Costa Rica
CLS55 AMG, ML63 AMG, Cayenne S
Fitting that looped section of the fuel rail can be really tricky. I spent about half an hour messing with that part trying to get it just right. It's really rigid and can make it difficult to get the injectors to seat properly. I had to loosen the fittings to the looped part until I had the rail snugged down and injectors fully seated, then I tightened the fittings.
As for the O2 sensors, you may need "cheaters" for the rear sensors. They are like little pipes that plug in where the rear ones go and then the sensors screw into those pipes. Having all those sensors so close probably had something to do with the fuel consumption.
As for the O2 sensors, you may need "cheaters" for the rear sensors. They are like little pipes that plug in where the rear ones go and then the sensors screw into those pipes. Having all those sensors so close probably had something to do with the fuel consumption.
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E63
You do not need cheaters for the rear O2 sensors and how close they are to each other is irrelevant!
You have a tune right? then the rear O2s have been turned off (or you would have had a cel all this time), as far as the car's Ecu is concerned, you do not have that option. Mine is turned off and I am getting 16 to 22 mpg on average depending on how much city driving I do.
You have a tune right? then the rear O2s have been turned off (or you would have had a cel all this time), as far as the car's Ecu is concerned, you do not have that option. Mine is turned off and I am getting 16 to 22 mpg on average depending on how much city driving I do.
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From: Always Sunny & beautiful, Costa Rica
CLS55 AMG, ML63 AMG, Cayenne S
You do not need cheaters for the rear O2 sensors and how close they are to each other is irrelevant!
You have a tune right? then the rear O2s have been turned off (or you would have had a cel all this time), as far as the car's Ecu is concerned, you do not have that option. Mine is turned off and I am getting 16 to 22 mpg on average depending on how much city driving I do.
You have a tune right? then the rear O2s have been turned off (or you would have had a cel all this time), as far as the car's Ecu is concerned, you do not have that option. Mine is turned off and I am getting 16 to 22 mpg on average depending on how much city driving I do.
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From: Always Sunny & beautiful, Costa Rica
CLS55 AMG, ML63 AMG, Cayenne S
Does anybody have an installation for the looped fuel rail?, my injectors are all out of whack, this needs to be corrected asap.
My dealer will take pics and send them to me, I will post them here to get feedback
My dealer will take pics and send them to me, I will post them here to get feedback
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From: A to the Z (the state)
'06 E55
Let's see how the looped part is ran under the supercharger. It might help to loosen the "stands" that those gold canister things on each side of the supercharger. I lifted the rear part of the rail to get it to line up with the fittings on the looped section just enough to get a few threads started. Then I got the injectors in place and bolted the rail down and then tightened the fittings. After that, then tighten the stands for the gold things.
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From: Always Sunny & beautiful, Costa Rica
CLS55 AMG, ML63 AMG, Cayenne S
Dealer's head mechanic says the injectors are not all the way in and as you can see there is all kinds of residue outside of the injectors... The fuel rail is all the way down, and the hose that runs side to side of the fuel is fitted perfectly.
But there a lot of fuel residue, I don't see how these injectors can go all the way down.
But there a lot of fuel residue, I don't see how these injectors can go all the way down.
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From: Always Sunny & beautiful, Costa Rica
CLS55 AMG, ML63 AMG, Cayenne S
Also, there is this black rubber hose that in the original throttle body goes in and recirculates gases (or something along those lines...)
But on the 82 mm TB there is no way connect it, and it's just there, sitting, I don't that should be the case.
Also, please have a look at the work this TB base has, two screws are loose were to 82mm TB is tightened.
But on the 82 mm TB there is no way connect it, and it's just there, sitting, I don't that should be the case.
Also, please have a look at the work this TB base has, two screws are loose were to 82mm TB is tightened.
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From: A to the Z (the state)
'06 E55
You're right, something doesn't look right with those injectors. Mine were a little dirty, but not that bad. I'm also running the TTM injectors. Maybe order some high quality injector O-rings and swap them out?
As for that hose, you can put an oil catch can on it, maybe?
As for that hose, you can put an oil catch can on it, maybe?
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From: West
2005 E55 Wagon
OP, you should show these pics to the vendor that sold you the looped rail and injectors, and see if the vendor can assist. I have the looped rail and 550 injectors and install was simple and straight forward. My pigtails are different from yours, so I don't know if that is why you are having some problems?
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From: Always Sunny & beautiful, Costa Rica
CLS55 AMG, ML63 AMG, Cayenne S
You're right, something doesn't look right with those injectors. Mine were a little dirty, but not that bad. I'm also running the TTM injectors. Maybe order some high quality injector O-rings and swap them out? As for that hose, you can put an oil catch can on it, maybe?
Does that make sense?
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From: A to the Z (the state)
'06 E55
OP, you should show these pics to the vendor that sold you the looped rail and injectors, and see if the vendor can assist. I have the looped rail and 550 injectors and install was simple and straight forward. My pigtails are different from yours, so I don't know if that is why you are having some problems?
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From: A to the Z (the state)
'06 E55
Where the rail bolts down, there are these "tabs" that stick out. Maybe if those tabs were raised up a bit, it would push the injectors farther down when it is bolted down?
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From: West
2005 E55 Wagon
Thread Starter
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From: Always Sunny & beautiful, Costa Rica
CLS55 AMG, ML63 AMG, Cayenne S
Thread Starter
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From: Always Sunny & beautiful, Costa Rica
CLS55 AMG, ML63 AMG, Cayenne S
Uodate:
Turns out my injectors were incorrectly installed, nobody at the dealer could tell what the difference was, it took SHARDUL a few looks at my pictures and he emailed me this "I know what the problem is with the injectors
The mechanic is using the wrong groove on the top to fasten the injectors to the fuel rail"
So, I told the dealer, and thats what it was... THANKS A LOT SHARDUL!!
Turns out my injectors were incorrectly installed, nobody at the dealer could tell what the difference was, it took SHARDUL a few looks at my pictures and he emailed me this "I know what the problem is with the injectors
The mechanic is using the wrong groove on the top to fasten the injectors to the fuel rail"
So, I told the dealer, and thats what it was... THANKS A LOT SHARDUL!!
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From: Houston
2003 W211 E55, 2003 W220 S600
it is a common mistake made during installation. The first grove from the top of the injector should be use to secure it to the fuel rail with the OEM metal clip. If a lower grove is used the injector will be too short.
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From: Always Sunny & beautiful, Costa Rica
CLS55 AMG, ML63 AMG, Cayenne S
Quick update:
My RPM sensor had gone bad, so the whole car was going on protection mode, dealer replaced the whole thing and the car is back to normal.
It was a crappy sensor causing all that agony
My RPM sensor had gone bad, so the whole car was going on protection mode, dealer replaced the whole thing and the car is back to normal.
It was a crappy sensor causing all that agony
