P0068 code on tuned vortech help please - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Frs32907 · 01-22-2014, 08:06 PM

Car ran great then one morning hot this code can anyone offer a suggestion for this happening?

Nomed Alucard · 01-22-2014, 08:09 PM

P0068 Scion DTC Code Definition:
Manifold Absolute Pressure/Mass Air Flow Sensor – Throttle Position Correlation

This is just google search, might be wrong but that pulled up.

Frs32907 · 01-22-2014, 08:11 PM

Does that mean the msp sensor is bad? Or something with the tune ?

King Tut · 01-23-2014, 12:46 PM

Have you cleared it and seen if it comes back?

DJCarbine · 01-23-2014, 12:53 PM

What tune are you running?
No leaks/loose hoseclamps?

Do you have an aftermarket MAP sensor? Is it scaled properly?

Seems that the DTC is finding a difference in the speed density calculation and the expected MAF values.... clear it and doublecheck your hoseclamps and verify the MAP sensor scaling if possible/needed in the tune

Frs32907 · 01-23-2014, 06:03 PM

Quote:

Originally Posted by DJCarbine

What tune are you running?
No leaks/loose hoseclamps?

Do you have an aftermarket MAP sensor? Is it scaled properly?

Seems that the DTC is finding a difference in the speed density calculation and the expected MAF values.... clear it and doublecheck your hoseclamps and verify the MAP sensor scaling if possible/needed in the tune

Im using the 2.5 bar didnt get the issue before tune now getting the code randomly doesnt seem to do it after i let the car get to teml though i think. Im switching the map sensor to a 3 bar this weekend to see if that fixes it. Hopefully its just a bad config or the sensor is bad.

Frs32907 · 01-23-2014, 06:04 PM

Ive cleared it twice already tut

King Tut · 01-23-2014, 06:06 PM

Quote:

Originally Posted by Frs32907

Im using the 2.5 bar didnt get the issue before tune now getting the code randomly doesnt seem to do it after i let the car get to teml though i think. Im switching the map sensor to a 3 bar this weekend to see if that fixes it. Hopefully its just a bad config or the sensor is bad.

Switching MAP sensors will still require a change to the MAP sensor scaling in your ROM.

Frs32907 · 01-23-2014, 06:09 PM

Yea i know just going to the 3 bar and scale it for that. The tuner had issues getting all the scaling for thr 2.5 i think his base tune might have been more ideal for a 3 bar but i dont know. Just hope this fixes it. Worst case ill have them check for leaks as well

Frs32907 · 01-23-2014, 06:10 PM

It is wierd though only does it when the car starts and drives less than a mile certain times i would think a vaccum leak or something would throw a flag all the time

jamesm · 01-23-2014, 06:35 PM

I used to see that when I had a shit tune from a local tuner. Retuned the car with proper maf/injector scaling and haven't seen it since.

Frs32907 · 01-23-2014, 06:52 PM

So the injector scaling might be off?

charged86 · 01-27-2014, 08:48 AM

did this get resolved? did you check the vacum hoses under the throttle body?

Ryan86 · 01-27-2014, 08:58 AM

i got the CEL with the Bosch MAP 2.5 bar sensor on my Sprintex kit.

I Put the OEM map sensor back on cleared the CEL and never came back on.
Faulty Map Sensor

Verify with your tuner, as in most cases this is tuning related, Faulty Sensor or a leak issue

01-22-2014, 08:06 PM	#1
Frs32907 Senior Member Join Date: Jul 2013 Drives: Asphalt grey, manual Fr-S Location: Palm bay Posts: 229 Thanks: 1 Thanked 20 Times in 15 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	P0068 code on tuned vortech help please Car ran great then one morning hot this code can anyone offer a suggestion for this happening?

01-23-2014, 12:46 PM	#4
King Tut NASA SpecE30 Racer Join Date: May 2012 Drives: 2006 Honda S2000 Location: Gulf Breeze, FL Posts: 7,279 Thanks: 607 Thanked 5,759 Times in 3,055 Posts Mentioned: 274 Post(s) Tagged: 10 Thread(s)	Have you cleared it and seen if it comes back? __________________ - King Tut Street/Track Car: 2006 Honda S2000 TT3 \|\| Race Car: 1987 BMW 325is SpecE30 \|\| Tow Vehicle: 2014 RAM 1500 EcoDiesel Sold Cars: 2012 BMW M3 \|\| 2013 Subaru BRZ \|\| 2012 Porsche Cayman R \|\| 2009 Chevrolet Z06 \|\| 2009 BMW M3 \|\| 2004 BMW M3 \|\| 2004 Nissan 350Z

01-23-2014, 12:53 PM	#5
DJCarbine Thupercharged Join Date: Mar 2013 Drives: 2013 FR-S Location: La Grange Park, IL. Posts: 1,501 Thanks: 116 Thanked 751 Times in 439 Posts Mentioned: 23 Post(s) Tagged: 0 Thread(s)	What tune are you running? No leaks/loose hoseclamps? Do you have an aftermarket MAP sensor? Is it scaled properly? Seems that the DTC is finding a difference in the speed density calculation and the expected MAF values.... clear it and doublecheck your hoseclamps and verify the MAP sensor scaling if possible/needed in the tune __________________ 2013 FRS Vortech V3 11psi Revworks UEL - PLM Overpipe - MOTIV catted frontpipe - Invidia Q300 2019 Series.Grey STI - Stage1+ SF

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01-22-2014, 08:11 PM	#3
Frs32907 Senior Member Join Date: Jul 2013 Drives: Asphalt grey, manual Fr-S Location: Palm bay Posts: 229 Thanks: 1 Thanked 20 Times in 15 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Does that mean the msp sensor is bad? Or something with the tune ?

01-23-2014, 06:04 PM	#7
Frs32907 Senior Member Join Date: Jul 2013 Drives: Asphalt grey, manual Fr-S Location: Palm bay Posts: 229 Thanks: 1 Thanked 20 Times in 15 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Ive cleared it twice already tut

01-23-2014, 06:09 PM	#9
Frs32907 Senior Member Join Date: Jul 2013 Drives: Asphalt grey, manual Fr-S Location: Palm bay Posts: 229 Thanks: 1 Thanked 20 Times in 15 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Yea i know just going to the 3 bar and scale it for that. The tuner had issues getting all the scaling for thr 2.5 i think his base tune might have been more ideal for a 3 bar but i dont know. Just hope this fixes it. Worst case ill have them check for leaks as well

01-23-2014, 06:10 PM	#10
Frs32907 Senior Member Join Date: Jul 2013 Drives: Asphalt grey, manual Fr-S Location: Palm bay Posts: 229 Thanks: 1 Thanked 20 Times in 15 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	It is wierd though only does it when the car starts and drives less than a mile certain times i would think a vaccum leak or something would throw a flag all the time

01-23-2014, 06:35 PM	#11
jamesm Banned Join Date: Mar 2013 Drives: 2013 FR-S Location: Orlando, FL Posts: 2,929 Thanks: 1,166 Thanked 2,293 Times in 1,180 Posts Mentioned: 313 Post(s) Tagged: 4 Thread(s)	I used to see that when I had a shit tune from a local tuner. Retuned the car with proper maf/injector scaling and haven't seen it since.

01-23-2014, 06:52 PM	#12
Frs32907 Senior Member Join Date: Jul 2013 Drives: Asphalt grey, manual Fr-S Location: Palm bay Posts: 229 Thanks: 1 Thanked 20 Times in 15 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	So the injector scaling might be off?

01-27-2014, 08:48 AM	#13
charged86 Senior Member Join Date: Mar 2013 Drives: whiteout gt86 2015 IS350fsport Location: northern kentucky. cincy Posts: 1,931 Thanks: 2,154 Thanked 697 Times in 437 Posts Mentioned: 42 Post(s) Tagged: 0 Thread(s)	did this get resolved? did you check the vacum hoses under the throttle body?

01-27-2014, 08:58 AM	#14
Ryan86 Road Warrior Join Date: Nov 2012 Drives: Toyota 86 Satin Pearl White Location: Durban, South Africa Posts: 1,651 Thanks: 181 Thanked 544 Times in 359 Posts Mentioned: 59 Post(s) Tagged: 0 Thread(s)	i got the CEL with the Bosch MAP 2.5 bar sensor on my Sprintex kit. I Put the OEM map sensor back on cleared the CEL and never came back on. Faulty Map Sensor Verify with your tuner, as in most cases this is tuning related, Faulty Sensor or a leak issue

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