06 Duramax lost some power, gained a lot of black smoke
Are you running any tunes? Your not getting enough air? If cleaning the MAP sensor and the air filter does not change things, let us know?
Newbie
Joined: Nov 2010
Posts: 7
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I went ahead and made an appointment for monday morning, just bought the truck 3 weeks ago. There were two other codes on it other than the MAF codes so if I learn anything on Monday I will fill you in. I thought for sure it was the K&N clogging the MAF... Sorry
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D. racer, You said you had no codes. Just out of curiosity... Who checked it for you? The reason I ask is I took mine to the auto parts store where they checked it with a tiny handheld and came up with nothing. So I went to a shop next door where they had a much more elaborate set up and found four codes as follows:
P2610 Control Module Igntion Off Timer Performance
P0101 Mass air flow sensor performance
P102 Mass air flow sensor circuit low voltage
P0540 Intake heater feed back circuit
I cleaned the MAF last night and got a little better, I'm going to get it rechecked and see if the MAF code is still there.
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D. racer, You said you had no codes. Just out of curiosity... Who checked it for you? The reason I ask is I took mine to the auto parts store where they checked it with a tiny handheld and came up with nothing. So I went to a shop next door where they had a much more elaborate set up and found four codes as follows:
P2610 Control Module Igntion Off Timer Performance
P0101 Mass air flow sensor performance
P102 Mass air flow sensor circuit low voltage
P0540 Intake heater feed back circuit
I cleaned the MAF last night and got a little better, I'm going to get it rechecked and see if the MAF code is still there.
Last edited by towerhand; Nov 7, 2010 at 10:31 AM. Reason: Automerged Doublepost
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Newbie
Joined: Nov 2010
Posts: 8
Likes: 1
I went ahead and made an appointment for monday morning, just bought the truck 3 weeks ago. There were two other codes on it other than the MAF codes so if I learn anything on Monday I will fill you in. I thought for sure it was the K&N clogging the MAF... Sorry
---AutoMerged DoublePost---
D. racer, You said you had no codes. Just out of curiosity... Who checked it for you? The reason I ask is I took mine to the auto parts store where they checked it with a tiny handheld and came up with nothing. So I went to a shop next door where they had a much more elaborate set up and found four codes as follows:
P2610 Control Module Igntion Off Timer Performance
P0101 Mass air flow sensor performance
P102 Mass air flow sensor circuit low voltage
P0540 Intake heater feed back circuit
I cleaned the MAF last night and got a little better, I'm going to get it rechecked and see if the MAF code is still there.
---AutoMerged DoublePost---
D. racer, You said you had no codes. Just out of curiosity... Who checked it for you? The reason I ask is I took mine to the auto parts store where they checked it with a tiny handheld and came up with nothing. So I went to a shop next door where they had a much more elaborate set up and found four codes as follows:
P2610 Control Module Igntion Off Timer Performance
P0101 Mass air flow sensor performance
P102 Mass air flow sensor circuit low voltage
P0540 Intake heater feed back circuit
I cleaned the MAF last night and got a little better, I'm going to get it rechecked and see if the MAF code is still there.
Thread Starter
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Newbie
Joined: Nov 2010
Posts: 8
Likes: 1
Maybe... Are you thinking excessive carbon buildup could be clogging the catalytic converter or????
with 95k i doubt it unless the guy before you was running some really smoky tunes. i know the egr on my truck with 140k was almost blocking the intake ports fully before i cleaned it but i got a totally different engine
Diesel Bomber
Joined: Mar 2009
Posts: 1,070
Likes: 66
From: Alberta, Canada
with the EGR on these engines they intakes (bolted to the heads) can fill with a thick black oily/sooty build up, that could be killing your airflow and causing the smoke and reduced power
To the other guy with the codes, have you tried replacing the MAF sensor?
To the other guy with the codes, have you tried replacing the MAF sensor?
Newbie
Joined: Nov 2010
Posts: 7
Likes: 0
No Idea
I have no idea? I guess it was the MAF. I put in some fuel catalyst, filled the tank and just putted around town on a bunch of short trips, nothing over 30. By Sunday night I really had to try to get it to smoke. Brought it in Monday and they cleared the codes and re set the check engine light. Charged me $100 and said it was the MAF? Put 2000 miles on it this week and seems to be doing just fine...
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I was going to just replace it but it was a factory direct order that would have taken 3 days to get and it was not a $10 part. I think it was around $200 with the core, so I opted to just let the dealer look at it first before I started replacing stuff. Thanks for the input everyone, you have all been more than helpful. Looking forward to my next panic when something goes wrong...
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I was going to just replace it but it was a factory direct order that would have taken 3 days to get and it was not a $10 part. I think it was around $200 with the core, so I opted to just let the dealer look at it first before I started replacing stuff. Thanks for the input everyone, you have all been more than helpful. Looking forward to my next panic when something goes wrong...
Last edited by towerhand; Nov 16, 2010 at 06:06 AM. Reason: Automerged Doublepost
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Newbie
Joined: Nov 2010
Posts: 8
Likes: 1
Is removing and cleaning the EGR relatively easy?
