weird , miss fires , tuned E63s
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Joined: Nov 2015
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C300
weird , miss fires , tuned E63s
Hi guys , yesterday I saw first flashing check engine light , which is I'm not afraid of , the car is tuned 2 month already or so , plugs still OEM plugs , gap is good question . so expected .
I raced hellcat
and car lost power , was all shaking , didn't reacted to the pedal , jumpy rpm .. I stopped to look at the codes , random multiple miss fires of course . I cleared the codes , the car got back to normal , I tried to push it hard , everything looks fine , so this is weird part . Here is the second question , ECU sees miss fires , goes to the limp mode , ignition , low boost etc , why in that case it felt like I blew the engine ? Any thoughts ? Thanks
ps hell cat was slower just by a little , before I lost the power
I raced hellcat
and car lost power , was all shaking , didn't reacted to the pedal , jumpy rpm .. I stopped to look at the codes , random multiple miss fires of course . I cleared the codes , the car got back to normal , I tried to push it hard , everything looks fine , so this is weird part . Here is the second question , ECU sees miss fires , goes to the limp mode , ignition , low boost etc , why in that case it felt like I blew the engine ? Any thoughts ? Thanks
ps hell cat was slower just by a little , before I lost the power
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Joined: May 2014
Posts: 1,645
Likes: 8
From: SoCal
2016 AMG S65, AMG GL63, 2012 AMG E63 With AMS Alpha 9 Package, Renntech 200 Catted Downpipes.
It's the OEM plugs I believe with everything I read. Get colder plugs and it should solve the problem.
Good luck.
Good luck.
Hi guys , yesterday I saw first flashing check engine light , which is I'm not afraid of , the car is tuned 2 month already or so , plugs still OEM plugs , gap is good question . so expected .
I raced hellcat
https://www.instagram.com/p/BCmgZUykKzc/
and car lost power , was all shaking , didn't reacted to the pedal , jumpy rpm .. I stopped to look at the codes , random multiple miss fires of course . I cleared the codes , the car got back to normal , I tried to push it hard , everything looks fine , so this is weird part . Here is the second question , ECU sees miss fires , goes to the limp mode , ignition , low boost etc , why in that case it felt like I blew the engine ? Any thoughts ? Thanks
ps hell cat was slower just by a little , before I lost the power
I raced hellcat
https://www.instagram.com/p/BCmgZUykKzc/
and car lost power , was all shaking , didn't reacted to the pedal , jumpy rpm .. I stopped to look at the codes , random multiple miss fires of course . I cleared the codes , the car got back to normal , I tried to push it hard , everything looks fine , so this is weird part . Here is the second question , ECU sees miss fires , goes to the limp mode , ignition , low boost etc , why in that case it felt like I blew the engine ? Any thoughts ? Thanks
ps hell cat was slower just by a little , before I lost the power
Thread Starter
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Joined: Nov 2015
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C300
Out Of Control!!
Joined: Feb 2003
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haters crazy
If the car detects misfire it shuts down that cylinder until you restart the car. That's why it feels like you blew the motor because it's not running on all cylinders. If you're having misfires I would advise against racing until you sort the issue out. Do you have oem plugs or colder plugs?
Thread Starter
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Joined: Nov 2015
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C300
If the car detects misfire it shuts down that cylinder until you restart the car. That's why it feels like you blew the motor because it's not running on all cylinders. If you're having misfires I would advise against racing until you sort the issue out. Do you have oem plugs or colder plugs?
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Joined: Aug 2005
Posts: 3,466
Likes: 10
From: Southern Cali (Ontario)
i had similar issues.. end up being something else than plugs..
I would start with Plugs.. if the CEL comes back then take the car in.
I ended up replacing the plugs on my own with indie mechanic.. then took the car in for repair once the CEL returned.
After plugs.. dealer will replace coil pack on the cylinder that failed.. after that it will be the Injector.
Dealer flashed my car back to stock and off I went.. Problem solved.
My service Advisor has worked on past 2 AMG's since 2005.. all modded and he understands I do my homework. I never had any issues about mods. (*knock on wood), hope you can find similar results.
I would start with Plugs.. if the CEL comes back then take the car in.
I ended up replacing the plugs on my own with indie mechanic.. then took the car in for repair once the CEL returned.
After plugs.. dealer will replace coil pack on the cylinder that failed.. after that it will be the Injector.
Dealer flashed my car back to stock and off I went.. Problem solved.
My service Advisor has worked on past 2 AMG's since 2005.. all modded and he understands I do my homework. I never had any issues about mods. (*knock on wood), hope you can find similar results.
Thread Starter
Super Member
Joined: Nov 2015
Posts: 773
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C300
i had similar issues.. end up being something else than plugs..
I would start with Plugs.. if the CEL comes back then take the car in.
I ended up replacing the plugs on my own with indie mechanic.. then took the car in for repair once the CEL returned.
After plugs.. dealer will replace coil pack on the cylinder that failed.. after that it will be the Injector.
Dealer flashed my car back to stock and off I went.. Problem solved.
My service Advisor has worked on past 2 AMG's since 2005.. all modded and he understands I do my homework. I never had any issues about mods. (*knock on wood), hope you can find similar results.
I would start with Plugs.. if the CEL comes back then take the car in.
I ended up replacing the plugs on my own with indie mechanic.. then took the car in for repair once the CEL returned.
After plugs.. dealer will replace coil pack on the cylinder that failed.. after that it will be the Injector.
Dealer flashed my car back to stock and off I went.. Problem solved.
My service Advisor has worked on past 2 AMG's since 2005.. all modded and he understands I do my homework. I never had any issues about mods. (*knock on wood), hope you can find similar results.
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Joined: Mar 2004
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From: North NJ
2002 C32 AMG, 2013 GLK 350/4, 2015 E63S AMG Wagon
i had similar issues.. end up being something else than plugs..
I would start with Plugs.. if the CEL comes back then take the car in.
I ended up replacing the plugs on my own with indie mechanic.. then took the car in for repair once the CEL returned.
After plugs.. dealer will replace coil pack on the cylinder that failed.. after that it will be the Injector.
Dealer flashed my car back to stock and off I went.. Problem solved.
My service Advisor has worked on past 2 AMG's since 2005.. all modded and he understands I do my homework. I never had any issues about mods. (*knock on wood), hope you can find similar results.
I would start with Plugs.. if the CEL comes back then take the car in.
I ended up replacing the plugs on my own with indie mechanic.. then took the car in for repair once the CEL returned.
After plugs.. dealer will replace coil pack on the cylinder that failed.. after that it will be the Injector.
Dealer flashed my car back to stock and off I went.. Problem solved.
My service Advisor has worked on past 2 AMG's since 2005.. all modded and he understands I do my homework. I never had any issues about mods. (*knock on wood), hope you can find similar results.
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MBWorld Fanatic!
Joined: Aug 2005
Posts: 3,466
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From: Southern Cali (Ontario)
Once you turn off the engine the CEL may come back. But car runs normal but CEL still is displayed.
Try to back to back redline pulls. If it comes back after your plug replacement. Then you need to take it in to check coil packs.
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Joined: Dec 2013
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E63
Mine had two bad coils (1 and 8). I also replaced my plugs with stock gapped down to 0.022 and I have not had a single misfire since.
I went with stock cos Renntech et al are using boost levels similar to the AMG-S boost levels (not verified, just what I've been told) for 577HP which was actually more like 520-540rwhp stock. Renntech now recommends stock plugs. I compared a few plugs out on the market and stock was better every time
I went with stock cos Renntech et al are using boost levels similar to the AMG-S boost levels (not verified, just what I've been told) for 577HP which was actually more like 520-540rwhp stock. Renntech now recommends stock plugs. I compared a few plugs out on the market and stock was better every time
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E63
Fairbird, on your video seems the Hellcat was bearing down on you pretty hard as the race proceeded. Looks like you would have lost if this had gone on another 20mph, also the Hellcat sounds like it spun pretty bad at the beginning of the race
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C300
I lost the power when he start getting me
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From: miami / delray beach
2014 E63s amg 4matic, 2009 C63, 2006 E55 AMG , 2001.5 AUDI S4 stg 3+ w/meth
Mine had two bad coils (1 and 8). I also replaced my plugs with stock gapped down to 0.022 and I have not had a single misfire since.
I went with stock cos Renntech et al are using boost levels similar to the AMG-S boost levels (not verified, just what I've been told) for 577HP which was actually more like 520-540rwhp stock. Renntech now recommends stock plugs. I compared a few plugs out on the market and stock was better every time
I went with stock cos Renntech et al are using boost levels similar to the AMG-S boost levels (not verified, just what I've been told) for 577HP which was actually more like 520-540rwhp stock. Renntech now recommends stock plugs. I compared a few plugs out on the market and stock was better every time
from what renntech told me when i was there is that anything much over 19psi on stock turbos starts to max out (ams said same thing on article over at boost addict)
