EGR Delete Codes

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Apr 5, 2018 | 07:35 PM

#16

navistarnut

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From: NW IA

Quote:

Originally Posted by arayray94

I cleared the codes, I am going to run it around a bit to let it go through the cycle and see if the codes come back. I know the stock exhaust was chocking it bad. It's like a whole new animal now.

So this had stock exhaust before?

Did it still have the cat conv and muffler?

Apr 5, 2018 | 07:57 PM

#17

arayray94

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Quote:

Originally Posted by navistarnut

So this had stock exhaust before?

Did it still have the cat conv and muffler?

Yes, full stock exhaust at 180k.

Apr 6, 2018 | 05:49 PM

#18

arayray94

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Codes came back. I will be cleaning the maf next to see if that will eliminate the problem.

Apr 7, 2018 | 02:43 PM

#19

BLADE35

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From: Saratoga Springs,UT

P006A MAP - Mass or Volume Air Flow Correlation (Bank 1)

Apr 7, 2018 | 02:56 PM

#20

BLADE35

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From: Saratoga Springs,UT

hope the clean thing works
if not you need a gauge to test MAF and MAP digital values

Apr 7, 2018 | 03:23 PM

#21

wedge542

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Testing maf. Part 2 -How to Test the Ford Mass Air Flow (MAF) Sensor

Apr 7, 2018 | 03:36 PM

#22

diesel_dan

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Joined: Jul 2004

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From: Foothills, CA

Quote:

Originally Posted by arayray94

After putting a 4in turbo back exhaust on over the weekend, the truck is pushing 29-30 pounds of boost. This is overboosting correct? Could this narrow it down to the MAF sensor?

Best way to clean the MAF? Or replace it?

You have some true experts helping you here, but I just want to throw out that after I had a bunch of work done on the truck, including cleaning turbo, I saw boost numbers up to 32. Then Slowly the VGT did its re-learn and the top number came down to where I now see a max of about 27-28. VGT re-learn will cause high boost for a while too (also had turbo f^rt during this time, lasted maybe 200 miles)...

I'll step back on the sidelines now and let these fine gentlemen continue to help you....

Scott

Apr 9, 2018 | 09:43 AM

#23

arayray94

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I could have swore I read a thread that said to monitor the BARO/MAP/MAF & VGT so I did. At idle, BOOST 0 (obviously), VGT 58, BARO 14.2, MAP 14, MAF 33.6 g/s. Cruising at 70, BOOST 11, VGT 49.2, BARO 14.2, MAP 25, MAF 180 g/s

I don't know if this is of any help or not. I could have swore I read this was a way to diag it before.

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Apr 9, 2018 | 06:13 PM

#24

arayray94

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I looked back in my pictures on my phone and I did have the P132B & P0401 back in July before my truck went down over the winter for some work. However, I did not have the MAF code. I cleaned my turbo in September of last year and everything seemed fine, no damage.

Apr 11, 2018 | 09:22 PM

#25

arayray94

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bump back up

Apr 11, 2018 | 11:32 PM

#26

BLADE35

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From: Saratoga Springs,UT

I looked and I only have MAFVolts not g/s

Can you post MAFV

Testing needs done with EOT @185* vehicle in park or neutral
Values taken @
KOEO
IDLE
2500RPM

Driving values leaves room for error because of load So best to do it park to start out and get a good baseline of you numbers

Apr 13, 2018 | 06:28 AM

#27

arayray94

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Quote:

Originally Posted by BLADE35

My CTS2 only has g/s. Is there a formula for Torque Pro to get voltage? By default it is showing g/s as well.

Apr 13, 2018 | 07:35 AM

#28

bismic

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MAF values (apprx)

cranking
15 g/s

low idle
21-22 g/s (EGR off)
32 g/s (EGR open)
35-38 g/s cold (mine)

high idle
around 40 g/s
75-78 g/s cold (mine)

cruise
130-135 g/s 1650 rpm
60-65 mph, flat road

Hard Accel
370 - 400 g/s
393 g/s WOT - mine