82mm tb lean hiccup
01-10-2017, 03:02 PM
#76
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2003 Mercedes e55 AMG
Il talk to them and request the same kind of scenario and see what they say.
01-10-2017, 03:11 PM
#77
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Somewhat similar issue.. I upgraded to the 82mm TB (MB) and matching snout. After that, the car started to misfire are run super rich to the point where it soiled all my sparkplugs. I replaced them all and was told it was a bad map sensor. After changing the map sensor we realized the car was running rich due to the 82mm TB staying at WOT at idle. Idle was also very low. When I revved it, the car would hesitate and then take a while for rpms to drop after they went up. Does this sound familiar to anyone??
i had this happen before when a tuner forgot to put the fuel injector data in. First pull, replace plugs. Thanks bro lol
edit: do you have a video? Reading your later posts makes me think you have a bad throttle valve. It surges at idle back and forth and the car is not drivable?
Last edited by 210lvr; 01-10-2017 at 03:17 PM.
01-10-2017, 03:18 PM
#78
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Not yet. I was told that it shouldnt be an issue. I had my tune adjusted to compensate for the size of the small injectors. Dont think that would cause the TB to not close.
01-10-2017, 03:25 PM
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01-10-2017, 03:33 PM
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Its at the shop. I wont be picking it up until like thursday or so. Until then, the best i can describe is to imagine the sporadic idle of a car that has a staged cam where the idle drops to almost cutting out, and then jumps back up but the idl has no consistency or anything to it. Its painful to listen to lol
01-10-2017, 04:00 PM
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The shop just sent me the codes. They said the car running rich and TB at WOT are 2 separate issues. One has nothing to do with the other. They sent me the codes.
Codes: P.2096, P.20E2, P.2076, P.20B7 and P.2007. Car apparently runs a little better when TB reset is done but still running rich. Running rich may be a tuning issue id presume? The Tb can maybe have to be reset using star? What do you guys think?
Codes: P.2096, P.20E2, P.2076, P.20B7 and P.2007. Car apparently runs a little better when TB reset is done but still running rich. Running rich may be a tuning issue id presume? The Tb can maybe have to be reset using star? What do you guys think?
01-10-2017, 04:24 PM
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01-11-2017, 10:09 PM
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1988 BMW 535is, 2004 E55
It was suggested to me by a tuner that the supercharger pulley gap could be too high, causing a hiccup as well. Wasn't too sure what to think until I went out and measured the gap on mine and it's almost double the upper end of the OEM spec (spec is .35-.45mm and mine was .8mm) It definitely needs to be adjusted regardless, but wasnt sure if it was related. I currently am on a stock pulley.
01-12-2017, 08:53 AM
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C215 CL55 AMG, W124 500E, W210 E430, W124 300E
Thats not the lean hiccup issue we dicuss here in this topic. Please open a new one, it clutters this topic and its a entirely different issue. Thank you
01-12-2017, 08:55 AM
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Guys, i always had a feeling that this plays a role for the lean hiccup mode:
https://mbworld.org/forums/w211-amg/...ml#post7020949
https://mbworld.org/forums/w211-amg/...ml#post7020949
to get the idle correct and prevent surging, you MUST install the crank vent after the throttle blade. That's the factory setup, and the engine can always breathe through crank vent (even if throttle blade is nearly closed).
I had problems with a stumbling idle on my 82mm, and when I installed crank vent after throttle blade 95% of my problems immediately went away.
You can install the crank vent by drilling a hole and jbwelding on the vent tube port from a MB throttle body (or just use a piece of stainless pipe that fits the stock crank vent).
I had problems with a stumbling idle on my 82mm, and when I installed crank vent after throttle blade 95% of my problems immediately went away.
You can install the crank vent by drilling a hole and jbwelding on the vent tube port from a MB throttle body (or just use a piece of stainless pipe that fits the stock crank vent).
01-12-2017, 09:32 AM
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Guys, i always had a feeling that this plays a role for the lean hiccup mode:
https://mbworld.org/forums/w211-amg/...ml#post7020949
https://mbworld.org/forums/w211-amg/...ml#post7020949
01-13-2017, 02:30 AM
#91
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Both my SL55 and E55 have a stumble under light throttle in manual 1st gear at 3500 rpm. The SL55 has the bigger TB from Eurocharged and a 77mm pulley etc. The E55 has only an 84mm pulley. Both tuned by EC. The video shows this clearly. The sample rate in EC logging program is too coarse to spot the issue.
If some of you with the hiccup issue can do this test and get the same stumble at 3500rpm in 1st under light load we have the same problem.
If some of you with the hiccup issue can do this test and get the same stumble at 3500rpm in 1st under light load we have the same problem.
01-13-2017, 09:38 AM
#92
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Both my SL55 and E55 have a stumble under light throttle in manual 1st gear at 3500 rpm. The SL55 has the bigger TB from Eurocharged and a 77mm pulley etc. The E55 has only an 84mm pulley. Both tuned by EC. The video shows this clearly. The sample rate in EC logging program is too coarse to spot the issue.
If some of you with the hiccup issue can do this test and get the same stumble at 3500rpm in 1st under light load we have the same problem.
If some of you with the hiccup issue can do this test and get the same stumble at 3500rpm in 1st under light load we have the same problem.
Its another issue and not the hiccup mode "lean spike" that we are discussing here.
On a further note, German tuners DONT KNOW that lean-spike hiccup issue. And 82mm TB is a "more or less" common upgrade here. I was the person gathering that info and a possible remedy from tuners that for instance now tunes "Renntech Germany", back in i believe 2014 already and passing it to both Eurocharged and BIP back then. That german tuner explained it to me. This is the original PM i passed to them back in early 2014!
Because i have spoken with some german tuners that use 82mm TBs since years, with large Crank pulleys, headers, larger injectors etc and they have no hiccup issues at all, but they do know apparently what is causing them. 
They explained it to me that the car has multiple maps for fuel timing etc.
But also the 55K ECU has many so called "backup maps", that are used when a sensor fails or reads non plausible values - even if just for a short second, the ECU immediately switches to such a backup map.
When the sensor is not completely broken, a restart of the car (ignition off on) switches the ECU back to the normal maps - just like the users with the hiccup issue described it.
The german tuners basically told me that the hiccup issue i have described them, after telling them how the users described their issue in this forums here, is because of 3 issues:
1. Most tuners they believe, do not alter those "backup maps". So when the ECU had a short issue with any sensor (such as the pressure sensor) and switches to such a backup map, it will cause the described issues by the users, which are namely a very lean running mode (see for instance Denrolls graphic logs)
2. With the 82mm TB, the tuner must adapt the ECU for the changed pulsation and pressure forces, otherwise the pressure sensor will not pass a so called "plausibility check" and will over short or long time trigger a pressure sensor trouble code. This will let the ECU use a backup map and if that backup map is not altered for all the mods, the car will run very bad (lean etc).
3. The pressure sensors go often bad (or rather "weak" like they described it to me after their experience), especially the original BOSCH ones, thats why MB changed to a OEM in Japan with the new "005 153 72 28" Number for the M113Ks.
They explained it to me that the car has multiple maps for fuel timing etc.
But also the 55K ECU has many so called "backup maps", that are used when a sensor fails or reads non plausible values - even if just for a short second, the ECU immediately switches to such a backup map.
When the sensor is not completely broken, a restart of the car (ignition off on) switches the ECU back to the normal maps - just like the users with the hiccup issue described it.
The german tuners basically told me that the hiccup issue i have described them, after telling them how the users described their issue in this forums here, is because of 3 issues:
1. Most tuners they believe, do not alter those "backup maps". So when the ECU had a short issue with any sensor (such as the pressure sensor) and switches to such a backup map, it will cause the described issues by the users, which are namely a very lean running mode (see for instance Denrolls graphic logs)
2. With the 82mm TB, the tuner must adapt the ECU for the changed pulsation and pressure forces, otherwise the pressure sensor will not pass a so called "plausibility check" and will over short or long time trigger a pressure sensor trouble code. This will let the ECU use a backup map and if that backup map is not altered for all the mods, the car will run very bad (lean etc).
3. The pressure sensors go often bad (or rather "weak" like they described it to me after their experience), especially the original BOSCH ones, thats why MB changed to a OEM in Japan with the new "005 153 72 28" Number for the M113Ks.
01-13-2017, 09:56 AM
#93
Both my SL55 and E55 have a stumble under light throttle in manual 1st gear at 3500 rpm. The SL55 has the bigger TB from Eurocharged and a 77mm pulley etc. The E55 has only an 84mm pulley. Both tuned by EC. The video shows this clearly. The sample rate in EC logging program is too coarse to spot the issue.
If some of you with the hiccup issue can do this test and get the same stumble at 3500rpm in 1st under light load we have the same problem.
If some of you with the hiccup issue can do this test and get the same stumble at 3500rpm in 1st under light load we have the same problem.
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trabots (01-13-2017)
01-13-2017, 12:23 PM
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That is maybe the Kompressor kicking in...
Its another issue and not the hiccup mode "lean spike" that we are discussing here.
On a further note, German tuners DONT KNOW that lean-spike hiccup issue. And 82mm TB is a "more or less" common upgrade here. I was the person gathering that info and a possible remedy from tuners that for instance now tunes "Renntech Germany", back in i believe 2014 already and passing it to both Eurocharged and BIP back then. That german tuner explained it to me. This is the original PM i passed to them back in early 2014!
Its another issue and not the hiccup mode "lean spike" that we are discussing here.
On a further note, German tuners DONT KNOW that lean-spike hiccup issue. And 82mm TB is a "more or less" common upgrade here. I was the person gathering that info and a possible remedy from tuners that for instance now tunes "Renntech Germany", back in i believe 2014 already and passing it to both Eurocharged and BIP back then. That german tuner explained it to me. This is the original PM i passed to them back in early 2014!
01-14-2017, 05:18 PM
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US Tuners listen, pay me the price and i'll get a German tune and send it to you, so you can reverse engineer it and see what the magic is
01-30-2017, 11:50 AM
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1988 BMW 535is, 2004 E55
Bumping this thread up since I took about three hours yesterday to change the old MAP sensor in my car to the latest version of the Bosch (part 0261230191.) I didn't have time to go in and reset adaptation in STAR, so I just did a quick pedal mash reset (which probably didn't do anything) and took it out to drive. Yesterday the car drive beautiful, smooth and strong, no codes in the ecu. This morning was a different story. I got a very slight hesitation from the car pulling up to the stoplight maybe three miles from my house, so out of curiosity I pulled codes while driving and had sure enough a pending 0106 code. I figured I'd keep driving just to see what happened and to my surprise the stop and go traffic that would normally make the car buck didn't do anything, car still drove smooth but the fuel trims were pretty high in the positives and eventually hit 25% so I figured it was time to pull over and restart. LTFT were a solid 0.0/+0.8. I'll see if it eventually adjusts itself out, but I was really hoping it would be a good fix. I guess the tune on my car from Tony is about a year old so maybe he's perfected things since then, I'll eventually pony up the cash to get support from him as a new owner of the car.
Last edited by LandCruzer94; 01-30-2017 at 11:54 AM.
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Crissus (02-01-2017)
01-30-2017, 01:27 PM
#97
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I was getting this code from just swapping to 550 injectors (everything else bone stock) and a eurocharged tune. I swapped to the 550s b/c 1 factory injector got stuck open and buying 1 oem was more than buying an entire set of 550s. Thinking that maybe a backfire damaged a gasket somewhere (it backfired when I first started it back up after injector swap since I couldn't get all the excess fuel out of cyl 8 from the stuck injector) I took the supercharger off and replaced every single gasket, piece of rubber, etc. The code still comes on from time to time. This isn't TB related, its tune related.
02-01-2017, 10:20 AM
#98
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Bumping this thread up since I took about three hours yesterday to change the old MAP sensor in my car to the latest version of the Bosch (part 0261230191.) I didn't have time to go in and reset adaptation in STAR, so I just did a quick pedal mash reset (which probably didn't do anything) and took it out to drive. Yesterday the car drive beautiful, smooth and strong, no codes in the ecu. This morning was a different story. I got a very slight hesitation from the car pulling up to the stoplight maybe three miles from my house, so out of curiosity I pulled codes while driving and had sure enough a pending 0106 code. I figured I'd keep driving just to see what happened and to my surprise the stop and go traffic that would normally make the car buck didn't do anything, car still drove smooth but the fuel trims were pretty high in the positives and eventually hit 25% so I figured it was time to pull over and restart. LTFT were a solid 0.0/+0.8. I'll see if it eventually adjusts itself out, but I was really hoping it would be a good fix. I guess the tune on my car from Tony is about a year old so maybe he's perfected things since then, I'll eventually pony up the cash to get support from him as a new owner of the car.
