Misfire 5,6,7
06-04-2011, 12:30 PM
#26
MBWorld Fanatic!
Just throwing it out there, but a member once got an issue with the way the wiring was done (extension) or O2 sensors been swapped left to right , can not remember
06-06-2011, 12:35 PM
#27
MBWorld Fanatic!
Well two things..
When I sprayed my cam covers, I noticed that each coil pack has a designated location...
did not notice this before... 
And I must have had these packs off and on about 10 times since Ive had the car ...
So in case you guys have not noticed there is a specific order to where they go in... its coded on the plug boot and the cam cover at each location. I dont think it makes too much difference, but I suppose there had to be a reason for them having this coding.
So I put it back together in the right manner, and while I have not activated the aquamist again, I have zero codes as yet. Will try again soon with spray on.. I am spraying ahead of the intercooler.... FWIW
When I sprayed my cam covers, I noticed that each coil pack has a designated location...
did not notice this before... And I must have had these packs off and on about 10 times since Ive had the car ... So in case you guys have not noticed there is a specific order to where they go in... its coded on the plug boot and the cam cover at each location. I dont think it makes too much difference, but I suppose there had to be a reason for them having this coding.
So I put it back together in the right manner, and while I have not activated the aquamist again, I have zero codes as yet. Will try again soon with spray on.. I am spraying ahead of the intercooler.... FWIW
06-06-2011, 08:54 PM
#28
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03 Silver E55
On another note, anybody who isnt running rear 02s, where are they sitting? Did you weld bungs in?
06-06-2011, 09:16 PM
#29
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03 Silver E55
Well two things..
When I sprayed my cam covers, I noticed that each coil pack has a designated location... did not notice this before... And I must have had these packs off and on about 10 times since Ive had the car ...
So in case you guys have not noticed there is a specific order to where they go in... its coded on the plug boot and the cam cover at each location. I dont think it makes too much difference, but I suppose there had to be a reason for them having this coding.
So I put it back together in the right manner, and while I have not activated the aquamist again, I have zero codes as yet. Will try again soon with spray on.. I am spraying ahead of the intercooler.... FWIW
When I sprayed my cam covers, I noticed that each coil pack has a designated location...
did not notice this before... And I must have had these packs off and on about 10 times since Ive had the car ... So in case you guys have not noticed there is a specific order to where they go in... its coded on the plug boot and the cam cover at each location. I dont think it makes too much difference, but I suppose there had to be a reason for them having this coding.
So I put it back together in the right manner, and while I have not activated the aquamist again, I have zero codes as yet. Will try again soon with spray on.. I am spraying ahead of the intercooler.... FWIW
Hmmm, I had mine off for the header install. Perhaps coincidence or maybe there really is something stupid about how mercedes did it, either way I will check it out.
Thanks
06-12-2011, 08:07 AM
#30
MBWorld Fanatic!
ok everything in the right order and still get the misfire code when spraying but only when I am off the throttle after a wot blast. So looks like i have some latent water pooling 
after a wot run ... as the system seems to spray 2-3 seconds after I have come off the trottle for some reason 
Always the same side / cylinders 5&7 ...
How you coming on tibi?
after a wot run ... as the system seems to spray 2-3 seconds after I have come off the trottle for some reason Always the same side / cylinders 5&7 ...
How you coming on tibi?
06-12-2011, 01:04 PM
#31
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03 Silver E55
I thought I had got mine fixed, a 3days of driving no problem and i raced on friday. However yesterday i misfired again (5 only), however it was awfully humid so I am guessing the water/meth couldn't fully vaporize. Once I turned it off she was all good to go.
I am simply going to stop spraying it on the street and keep it for the track
I am simply going to stop spraying it on the street and keep it for the track
07-29-2011, 09:11 AM
#32
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Brabus K8 E55 05
Tibi and Stevebez,
Any update on this situation?
I have similar situation with my car, misfire and the car around 1800 - 2400 rpm seem to be suffocate and it gave small smoke. I stopped spraying and this is the second day but I don't drive the car for long, I will check in 2 more days how the car feels.
I have the nozzles after SC, before the IC. Even when I use only water, similar situation. What size of nozzles guys are you using?
My engine mods:
- 82mm TB
- Brabus Pulley
- KLEEMAN headers
- W/M post SC but pre IC
- 550cc Fuel injectors + TTM rail design
Any update on this situation?
I have similar situation with my car, misfire and the car around 1800 - 2400 rpm seem to be suffocate and it gave small smoke. I stopped spraying and this is the second day but I don't drive the car for long, I will check in 2 more days how the car feels.
I have the nozzles after SC, before the IC. Even when I use only water, similar situation. What size of nozzles guys are you using?
My engine mods:
- 82mm TB
- Brabus Pulley
- KLEEMAN headers
- W/M post SC but pre IC
- 550cc Fuel injectors + TTM rail design
07-29-2011, 09:32 AM
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Evo VIII/E55 AMG
Having simmlar issues, P2096 and P2098 as well. But randomly the car will sometimes throw a random misfire code. the car will run like dick, until i clear the code and restart. Then all will be well....??
FF LT headers 2 200 cel race cats secondary o2s disabled but there are bungs and they are in. No issues for 1 month prior to having eurocharged flash the car for the headers, now after timmay fest I have been throwing the codes weekly... Any thoughts?
FF LT headers 2 200 cel race cats secondary o2s disabled but there are bungs and they are in. No issues for 1 month prior to having eurocharged flash the car for the headers, now after timmay fest I have been throwing the codes weekly... Any thoughts?
Last edited by Evolved8; 07-29-2011 at 09:34 AM.
07-29-2011, 11:01 AM
#40
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Eurocharged Performance ML63 and TT lambo
07-29-2011, 12:47 PM
#42
MBWorld Fanatic!
Have not tried to spray again recently. Will do on Sunday. I have one 0.8mm nozzle after s/c ahead of I/C, water only.
Ill try fiddle with the trigger point and mbe set the start point at a higher IDC, so I use less water and see if it still happens.
Ill try fiddle with the trigger point and mbe set the start point at a higher IDC, so I use less water and see if it still happens.
08-01-2011, 05:00 AM
#43
MBWorld Fanatic!
Well picked up a misfire almost instantly after I had a short wot blast. Car running rough at idle, hunting a bit. Siwtched WI off and car settled down soon after. I think either the IAT or the MAP getting wet and throwing things into disarray. Mbe my flow is set too high here and mbe I should spray according to boost rather than IDC...
I dont get why I get misfire at part throttle (low IDC) when I should be spraying nothing at anything less than 70-80% IDC...
Mbe its the interaction between the ecu electronics and the Auquamist unit. Ill set the flow to a higher IDC and see if it returns.
I dont get why I get misfire at part throttle (low IDC) when I should be spraying nothing at anything less than 70-80% IDC...
Mbe its the interaction between the ecu electronics and the Auquamist unit. Ill set the flow to a higher IDC and see if it returns.
08-01-2011, 05:08 AM
#44
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Brabus K8 E55 05
Well picked up a misfire almost instantly after I had a short wot blast. Car running rough at idle, hunting a bit. Siwtched WI off and car settled down soon after. I think either the IAT or the MAP getting wet and throwing things into disarray. Mbe my flow is set too high here and mbe I should spray according to boost rather than IDC...
I dont get why I get misfire at part throttle (low IDC) when I should be spraying nothing at anything less than 70-80% IDC...
Mbe its the interaction between the ecu electronics and the Auquamist unit. Ill set the flow to a higher IDC and see if it returns.
I dont get why I get misfire at part throttle (low IDC) when I should be spraying nothing at anything less than 70-80% IDC...
Mbe its the interaction between the ecu electronics and the Auquamist unit. Ill set the flow to a higher IDC and see if it returns.
I run my nozzle after SC, before the IC. Nozzle size is 550 cc/min, will a tune will help? I am waiting to get a tune and maybe re check again.
04-19-2012, 08:41 PM
#45
Super Member
Bumping a somewhat old thread but what was the definitive fix for these codes and were you all getting a slightly rough idle when cold? Trying to figure out if I have to pull down my race cats for inspection. I used a liberal amount of permatex ultra copper sealant to seal my ball and socket connector around my collector AMD can't help but wonder of its partially clogging both cats
04-19-2012, 09:02 PM
#46
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03 Silver E55
My problem was caused by dieing o2s. The primaries woulddrop down yo o volts and linger there. When they did so the car misfired. When the perked up the car seemed normal.
10-25-2014, 03:28 PM
#47
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2005 slk amg 5.5
Well gents.
For the past few weeks I have been having some random misfires. There isnt one specific thing that I am doing to cause the misfires, and they do not happen every time I drive the car.
Two weeks ago, at the track, at the end of the run the while downshifting the car made a loud exhaust noise and the check engine light came on. Cylinder 5 misfire.
Last week, driving down the highway just cruising and all of a sudden is sounded like a helicopter was above me, check engine light came on. Tried to accelerate car fell flat on its face, so I pulled over shut her down, looked around saw nothing wrong. Fired her back up and she drove fine. Code said cylinder 5,6,7 misfire.
Today, I was cruising with my parents in the car, and it repeated last weeks behavior. I haven't checked the code yet, I will check and post the exact code tomorrow. However I am willing to bet 5,6,7 misfire.
Mods:
MB 80mm tb
Cooling mist Water injection (windshield washer fluid with 2 cap fulls of meth)
FF Long tubes
Eurocharged tune
Could you gent help me narrow down where to look?
When doing a compression check should it be done WOT?
Need ideas, my drag setup arrived yesterday, so I would like to resolve this before Friday night.
Thanks
For the past few weeks I have been having some random misfires. There isnt one specific thing that I am doing to cause the misfires, and they do not happen every time I drive the car.
Two weeks ago, at the track, at the end of the run the while downshifting the car made a loud exhaust noise and the check engine light came on. Cylinder 5 misfire.
Last week, driving down the highway just cruising and all of a sudden is sounded like a helicopter was above me, check engine light came on. Tried to accelerate car fell flat on its face, so I pulled over shut her down, looked around saw nothing wrong. Fired her back up and she drove fine. Code said cylinder 5,6,7 misfire.
Today, I was cruising with my parents in the car, and it repeated last weeks behavior. I haven't checked the code yet, I will check and post the exact code tomorrow. However I am willing to bet 5,6,7 misfire.
Mods:
MB 80mm tb
Cooling mist Water injection (windshield washer fluid with 2 cap fulls of meth)
FF Long tubes
Eurocharged tune
Could you gent help me narrow down where to look?
When doing a compression check should it be done WOT?
Need ideas, my drag setup arrived yesterday, so I would like to resolve this before Friday night.
Thanks
