PO1514 and PO103, are these based off the tune? Twin Turbo C5
Hi all
I originally scheduled a tune at Vengeance but I postponed because I thought I was having clutch slipping issues. I bled the clutch and now it seems to be holding, did a few 6th gear full throttle rolls and was rock solid. Now, when achieving max boost or close to it, I get a PO1514 code and the car goes into reduced power mode. This happens pretty much every time now when I get on the throttle and rev it up to redline. The car has a standing PO103 code on it as well where it lights up service vehicle soon in the DIC. The car is a twin turbo c5. Not sure who did the previous tune on it. Are these items both tune related and are they easy fixes? I'm planning to call Vengeance and re-schedule the tune but if there's something I can do in the mean time, or someone close to Savannah, GA.. I'd appreciate any insight. |
Originally Posted by camaroguy72
(Post 1591130932)
Now, when achieving max boost or close to it, I get a PO1514 code and the car goes into reduced power mode. This happens pretty much every time now when I get on the throttle and rev it up to redline.
The car has a standing PO103 code on it as well where it lights up service vehicle soon in the DIC. The car is a twin turbo c5. Not sure who did the previous tune on it. Are these items both tune related and are they easy fixes? I'm planning to call Vengeance and re-schedule the tune but if there's something I can do in the mean time, or someone close to Savannah, GA.. I'd appreciate any insight. |
Looks like your airflow is going off the scale of what the MAF is setup for. Vengeance should have no problem fixing this.
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Originally Posted by CamminC5
(Post 1591132494)
Looks like your airflow is going off the scale of what the MAF is setup for. Vengeance should have no problem fixing this.
MAF scale in that kind of setup is already maxed without even seeing the logs. MIL in the tune is probably just unchecked or otherwise wrongly configured depending on tuning sw. No MAF anymore in that car I think. But the real problem is too much Cylinder Airmass (grams/cyl) and thus the need for scaling. |
Appointment made for tomorrow at Vengeance. It's a 4.5 hour drive, but at least the car will be sorted out. Gets annoying to get on the gas only to have it shut down on you!
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Originally Posted by Pekka_Perkeles
(Post 1591132718)
I'd say no and yes.
MAF scale in that kind of setup is already maxed without even seeing the logs. MIL in the tune is probably just unchecked or otherwise wrongly configured depending on tuning sw. No MAF anymore in that car I think. But the real problem is too much Cylinder Airmass (grams/cyl) and thus the need for scaling. Good luck and let us know how it goes. |
Originally Posted by CamminC5
(Post 1591133128)
I don't assume the MAF is maxed or that the car doesn't have a MAF. Easier to start with rescale than throwing parts and money at it. Either way Vengeance is more than capable of fixing the issue.
Good luck and let us know how it goes. The car does have a MAF.. whether it is doing anything but letting air pass through it is another thing. Will find out tomorrow and report back! |
My F1C Procharged 427 did the same thing until the MAF was scaled. It was embarrassing to have it fall on its face, especially when a nasty sounding Mustang was in the other lane.
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Originally Posted by camaroguy72
(Post 1591133135)
The car does have a MAF.. whether it is doing anything but letting air pass through it is another thing.
Originally Posted by camaroguy72
(Post 1591133135)
Will find out tomorrow and report back!
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Looks like it was related to the tune. Whoever tuned it also locked the ecu up, so the guy at vengeance started with a new ecu
Plugged in everything for a base tune after inputting the different variables , drove it around and calibrated the maf and whatever else. Made 512 on the dyno at the wheels with clutch slip at the top end. But runs amazing now and the car is actually enjoyable ! |
Glad it was an easy fix!! And your happy.
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Originally Posted by CamminC5
(Post 1591158276)
Glad it was an easy fix!! And your happy.
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