Mustang spouting black carbon and running lean - Mustang Evolution

Go Back   Mustang Evolution > Ford Mustang | Wrenching, Care and General Topics > General Mustang Discussion



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 06-13-2015, 11:36 AM   #1
Registered Member
Regular
 
Tyrannax's Avatar
 
Join Date: Oct 2012
Region: Texas
Posts: 93
Mustang spouting black carbon and running lean

Hey guys, I have been in Europe for the past month so I was unable to look into the issues my car has been experiencing due to the heavy rain described in this thread Waterlogged car after heavy rain - solution?

What I can tell you is:

1. The car is running very lean
2. Black carbon is blowing out of the tailpipes
3. It hesitates on acceleration
4. It slightly misses out

It can be driven, but after about 5 minutes the car begins to shake. I took it to a mechanic who simply cleaned the intake ($130 later). Incidentally, this didn't help. The next day my buddy and I took the mass airflow sensor off of my brother's car and replaced mine to see if this might be the issue. No fix there either.

I was hoping you guys would have some other ideas. I'd really love to take my car out for a drive this summer!

Any help would be greatly appreciated. Again, this has been occurring ever since my car "shorted out" during a heavy downpour. My thinking is a sensor must be off, but I'm not sure.
__________________
Affectionately "The Red Raptor"

Ford Racing CIA, X-Pipe, GT500 Takeoffs, Bama Tuned, X-Charger and Intercooler.
Tyrannax is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-14-2015, 03:49 PM   #2
Registered Member

Regular
 
Jon3.7's Avatar
 
Join Date: Apr 2015
Location: Deltona
Region: Florida
Posts: 399
take out the air box and see if there is water in the box, if so clean out, buy new air filter.
__________________
2013 GT, A6, VMP Tuned, Lethal O/R H pipe, GT500 Mufflers
2016 EB, A6, Steeda Tuned, Steeda CAI
Jon3.7 is offline   Reply With Quote
Old 06-14-2015, 07:31 PM   #3
Registered Member
Regular
 
Tyrannax's Avatar
 
Join Date: Oct 2012
Region: Texas
Posts: 93
I have the charger xtreme supercharger kit, so there is no air box. We were thinking it might be the fuel pressure regulator giving out.
Tyrannax is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-14-2015, 07:34 PM   #4
Registered Member

Regular
 
Jon3.7's Avatar
 
Join Date: Apr 2015
Location: Deltona
Region: Florida
Posts: 399
more like water. air down the intake and surrounding areas, also clean maf... also you should still have an air filter, check it
__________________
2013 GT, A6, VMP Tuned, Lethal O/R H pipe, GT500 Mufflers
2016 EB, A6, Steeda Tuned, Steeda CAI
Jon3.7 is offline   Reply With Quote
Old 09-21-2015, 10:51 PM   #5
Registered Member
Regular
 
Tyrannax's Avatar
 
Join Date: Oct 2012
Region: Texas
Posts: 93
3 months and 2 mechanics later. My car will still not run more than a few minutes without stalling.

Replacing the computer tomorrow. Not sure what else to do.
__________________
Affectionately "The Red Raptor"

Ford Racing CIA, X-Pipe, GT500 Takeoffs, Bama Tuned, X-Charger and Intercooler.
Tyrannax is offline   Reply With Quote
Old 09-21-2015, 11:23 PM   #6
Registered Member
Regular
 
Join Date: Jun 2015
Location: HARTWELL LAKE AREA
Region: South Carolina
Posts: 435
Quote:
Originally Posted by Tyrannax View Post
3 months and 2 mechanics later. My car will still not run more than a few minutes without stalling.

Replacing the computer tomorrow. Not sure what else to do.

ANY CODES?
ALLYDRIVER1 is offline   Reply With Quote
Old 09-21-2015, 11:53 PM   #7
Registered Member

Regular
 
natestang07's Avatar
 
Join Date: Jun 2014
Location: Soap Lake
Region: Washington
Posts: 5,321
Have you gone over your tune?
natestang07 is offline   Reply With Quote
Old 09-22-2015, 09:09 AM   #8
Registered Member
Regular
 
Tyrannax's Avatar
 
Join Date: Oct 2012
Region: Texas
Posts: 93
I was told the codes showed it was "running lean on both banks."

No, but I'm willing to try anything. I've re-tuned it if that's what you mean. What did you have in mind?
__________________
Affectionately "The Red Raptor"

Ford Racing CIA, X-Pipe, GT500 Takeoffs, Bama Tuned, X-Charger and Intercooler.
Tyrannax is offline   Reply With Quote
Old 09-22-2015, 10:03 AM   #9
Registered Member

Regular
 
natestang07's Avatar
 
Join Date: Jun 2014
Location: Soap Lake
Region: Washington
Posts: 5,321
Well first things first what/who's tune are you running?
natestang07 is offline   Reply With Quote
Old 09-22-2015, 11:39 AM   #10
Registered Member
Regular
 
WJBertrand's Avatar
 
Join Date: Nov 2013
Location: Ventura
Region: California
Posts: 517
Sounds like it's actually running rich if you are seeing black smoke. Maybe the computer is attempting to correct by leaning everything out as much as it can?
__________________
-Jeff-
Ventura, CA
2013 GT Premium Brembo
MGW, Blow Fish, AM Hood Struts
Tinted, Borla Touring AB, ProCal Tune
Full Shelby/Kicker Audio Upgrade
WJBertrand is offline   Reply With Quote
Old 09-22-2015, 12:15 PM   #11
Registered Member
Regular
 
Tyrannax's Avatar
 
Join Date: Oct 2012
Region: Texas
Posts: 93
Yes, we think it has to be compensating because it's been running rich. I'm using bama's strategy tune they provided with my x-charger.

So, it shows lean on the codes, but is actually running rich.

I'm not sure if the mechanics modified the settings or not. I know one of them used the wrong tuner at one time despite my warning not to use the one in the trunk (it was sitting on my seat when I got the car back), but since then the real tune has been added on.

Apparently the cylinders are washing out and losing compression. That's one mechanic's theory. Also, the oil is black despite being changed recently. You can smell gas and there's still black carbon being emitted through the exhaust. We heard a light tapping from the engine now and then as well. We've changed the MAF, O2 sensors, etc to no avail.
Tyrannax is offline   Reply With Quote
Old 09-22-2015, 12:38 PM   #12
Registered Member

Regular
 
natestang07's Avatar
 
Join Date: Jun 2014
Location: Soap Lake
Region: Washington
Posts: 5,321
Quote:
Originally Posted by Tyrannax View Post
Yes, we think it has to be compensating because it's been running rich. I'm using bama's strategy tune they provided with my x-charger.

So, it shows lean on the codes, but is actually running rich.

I'm not sure if the mechanics modified the settings or not. I know one of them used the wrong tuner at one time despite my warning not to use the one in the trunk (it was sitting on my seat when I got the car back), but since then the real tune has been added on.

Apparently the cylinders are washing out and losing compression. That's one mechanic's theory. Also, the oil is black despite being changed recently. You can smell gas and there's still black carbon being emitted through the exhaust. We heard a light tapping from the engine now and then as well. We've changed the MAF, O2 sensors, etc to no avail.
Getting a new tune has never popped up in conversation with them?
natestang07 is offline   Reply With Quote
Old 09-22-2015, 03:55 PM   #13
Registered Member
Regular
 
Tyrannax's Avatar
 
Join Date: Oct 2012
Region: Texas
Posts: 93
No, but if you think that's worth a shot I'll contact Bama and get a new tune before we pull the computer.

Thanks for the help by the way. I really appreciate it.
__________________
Affectionately "The Red Raptor"

Ford Racing CIA, X-Pipe, GT500 Takeoffs, Bama Tuned, X-Charger and Intercooler.
Tyrannax is offline   Reply With Quote
Old 09-22-2015, 03:59 PM   #14
Registered Member

Regular
 
natestang07's Avatar
 
Join Date: Jun 2014
Location: Soap Lake
Region: Washington
Posts: 5,321
Maybe run some datalogs and whatnot.
natestang07 is offline   Reply With Quote
Old 09-22-2015, 06:01 PM   #15
Registered Member
Regular
 
Tyrannax's Avatar
 
Join Date: Oct 2012
Region: Texas
Posts: 93
Okay. I'm going to ask Bama for a new tune. I'll try that and see if the car starts acting right.

I'll update once I know something.
__________________
Affectionately "The Red Raptor"

Ford Racing CIA, X-Pipe, GT500 Takeoffs, Bama Tuned, X-Charger and Intercooler.
Tyrannax is offline   Reply With Quote
Old 09-25-2015, 02:18 PM   #16
Registered Member
Regular
 
Panther140's Avatar
 
Join Date: Sep 2014
Location: xxx
Region: Other
Posts: 1,473
Quote:
Originally Posted by Tyrannax View Post
Yes, we think it has to be compensating because it's been running rich. I'm using bama's strategy tune they provided with my x-charger.

So, it shows lean on the codes, but is actually running rich.

I'm not sure if the mechanics modified the settings or not. I know one of them used the wrong tuner at one time despite my warning not to use the one in the trunk (it was sitting on my seat when I got the car back), but since then the real tune has been added on.

Apparently the cylinders are washing out and losing compression. That's one mechanic's theory. Also, the oil is black despite being changed recently. You can smell gas and there's still black carbon being emitted through the exhaust. We heard a light tapping from the engine now and then as well. We've changed the MAF, O2 sensors, etc to no avail.
1- You drove through how much water? How do you think your O2 sensors liked that at highway speed?

2- You can smell gas coming from the exhaust, or was that in the oil? I did not understand that comment about gas smell.

3- Have you actually done a compression and leakdown test?





4- Did the oil get changed before or after the car got this bath?

5- Data-Log it, honestly. Its a good idea to be doing that anyways considering it is boosted.
Panther140 is offline   Reply With Quote
Old 09-25-2015, 03:10 PM   #17
Registered Member
Regular
 
Join Date: Jun 2015
Location: HARTWELL LAKE AREA
Region: South Carolina
Posts: 435
[QUOTE=Panther140;2295946]1- You drove through how much water? How do you think your O2 sensors liked that at highway speed?

2- You can smell gas coming from the exhaust, or was that in the oil? I did not understand that comment about gas smell.

3- Have you actually done a compression and leakdown test



IF YOU SMELL GAS IN OIL YOU BETTER CHANGE IT BEFORE RUNNING ANYMORE, YOU WILL BLOW THE RODS OUT THE SIDE OF BLOCK,GAS DOESN,T LUBE VERY GOOD
ALLYDRIVER1 is offline   Reply With Quote
Old 09-25-2015, 03:34 PM   #18
Registered Member
Regular
 
Panther140's Avatar
 
Join Date: Sep 2014
Location: xxx
Region: Other
Posts: 1,473
Cylinder wash isn't that bad for your engine.


Diluting your oil with gasoline is pretty bad though. Gasoline is a solvent for oil, because it is a lighter molecule of the same thing
Panther140 is offline   Reply With Quote
Old 09-27-2015, 10:27 PM   #19
Registered Member
Regular
 
Tyrannax's Avatar
 
Join Date: Oct 2012
Region: Texas
Posts: 93
1.O2 sensors have been changed. This was just a severely heavy downpour, but it was enough to cause electrical problems.
2.Smell is coming from exhaust.
3.It has had a compression test. #4 cylinder has low compression after it's been running a while. I'm hoping the cylinders are just washed out (dumping fuel in) due to the car running too rich. I'm not sure when the test was taken- after it been running or when it just started. The car starts up great. After 20-30 minutes, the car starts to run pretty rough. This is what I was told. I am choosing not to test drive it in this condition.
4. Oil was changed after these issues started (and subsequently after we saw the oil), but the mechanics test drove it several times before this.
5.I'm not sure what that is. The tuner will do this I take it?

I'll be receiving a new tune within a few days. I'm not sure why the tune would have been erased, but it's worth a shot.

After I get the tune, I plan to add engine oil into each cylinder through the spark plug openings before starting it up.

Any thoughts? I really appreciate the help guys.
__________________
Affectionately "The Red Raptor"

Ford Racing CIA, X-Pipe, GT500 Takeoffs, Bama Tuned, X-Charger and Intercooler.
Tyrannax is offline   Reply With Quote
Old 09-28-2015, 01:25 PM   #20
Registered Member
Regular
 
Panther140's Avatar
 
Join Date: Sep 2014
Location: xxx
Region: Other
Posts: 1,473
Quote:
Originally Posted by Tyrannax View Post
1.O2 sensors have been changed. This was just a severely heavy downpour, but it was enough to cause electrical problems.
2.Smell is coming from exhaust.
3.It has had a compression test. #4 cylinder has low compression after it's been running a while. I'm hoping the cylinders are just washed out (dumping fuel in) due to the car running too rich. I'm not sure when the test was taken- after it been running or when it just started. The car starts up great. After 20-30 minutes, the car starts to run pretty rough. This is what I was told. I am choosing not to test drive it in this condition.
4. Oil was changed after these issues started (and subsequently after we saw the oil), but the mechanics test drove it several times before this.
5.I'm not sure what that is. The tuner will do this I take it?

I'll be receiving a new tune within a few days. I'm not sure why the tune would have been erased, but it's worth a shot.

After I get the tune, I plan to add engine oil into each cylinder through the spark plug openings before starting it up.

Any thoughts? I really appreciate the help guys.
1- I think your ECU is not getting the right readings from the O2 sensor. Sensor could be good, but wires shorted somewhere.

2- That's probably just from being rich, then. Are you catless as well?

3- low compression on 1 cylinder shouldn't cause this big of an issue, but its still good to know

4- Glad the oil got changed!!

5- Data log is when everything the computer should know is recorded. It will tell the timing, RPM, cam phasing, O2 sensor readings, throttle position, airflow readings, and manifold pressure. When you have all of that data, its really easy to figure out what the problem is.


The reason your car starts up great is because it will run on a pre-determined fuel and ignition map when it is cold. When the coolant and O2 sensors warm up, the car then enters closed-loop operation.


In closed loop, the car will adjust timing and fuel trim based on the readings it is getting from the various sensors. Your o2 sensor has to warm up before it will work in any capacity. The car does not rely on that reading until the sensor warms up. Then it starts adjusting things. How long that takes will vary depending on operating conditions like ambient temp and how much the engine is working.
Panther140 is offline   Reply With Quote
Old 09-28-2015, 02:48 PM   #21
Registered Member
Regular
 
WJBertrand's Avatar
 
Join Date: Nov 2013
Location: Ventura
Region: California
Posts: 517
Put the stock tune back in and go from there? At least that would hopefully stop any further damage from what sounds like too much raw fuel being dumped in there.
__________________
-Jeff-
Ventura, CA
2013 GT Premium Brembo
MGW, Blow Fish, AM Hood Struts
Tinted, Borla Touring AB, ProCal Tune
Full Shelby/Kicker Audio Upgrade
WJBertrand is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > Ford Mustang | Wrenching, Care and General Topics > General Mustang Discussion

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Running Lean Her98StangV6 Pre-2005 V6 Mustang 50 09-08-2015 06:11 PM
Bank 1 and bank 2 running lean. Rich04 1996-2004 Mustang GT 19 04-23-2013 08:20 PM
Running lean ColeJohnson 1996-2004 Mustang GT 20 01-29-2012 07:00 PM
1998 4.6 running lean on bank 1 and 2 eddie1 1996-2004 Mustang GT 22 11-28-2009 05:54 PM
Running Too Lean... MyStangStanks Pre-2005 V6 Mustang 11 10-16-2006 06:29 PM

» Like Us On Facebook



03:32 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.