P1514 and PO103, are these based off the tune? Twin Turbo C5
12-17-2015, 09:42 AM
#1
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P1514 and PO103, are these based off the tune? Twin Turbo C5
I posted this in forced induction before I realized this would be a better place.
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.
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.
12-18-2015, 10:43 PM
#2
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St. Jude Donor '13-'14-'15
A P1514 code will put your car in limp mode---It is very common on modded engines of over apprx 75-100 HP over stock----It is an easy fix----What triggers the code is that the actual airflow has exceeded the predicted airflow----
Your tuner can go to the "predicted airflow table" (C6101 in EFILIVE) and add like 33% to the entire table---should ne enough if not add more---No more code
If you simply delete the code in the diagnostics this won't fix it---it will still go into limp mode but there won't be a check engine light
Your tuner can go to the "predicted airflow table" (C6101 in EFILIVE) and add like 33% to the entire table---should ne enough if not add more---No more code
If you simply delete the code in the diagnostics this won't fix it---it will still go into limp mode but there won't be a check engine light
12-19-2015, 11:35 PM
#3
Safety Car
I'd assume this is also a speed density tune.
In this case the MAF code is not only normal, but required to let the PCM know there is no MAF present.
The check engine light for this code can be turned off.
Ron
In this case the MAF code is not only normal, but required to let the PCM know there is no MAF present.
The check engine light for this code can be turned off.
Ron
12-19-2015, 11:48 PM
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St. Jude Donor '13-'14-'15
A MAF code is typically a P0101- P0103----But a MAF/TB correlation code is directly associated with the "predicted airflow table" Regardless if it's a open/closed loop tune--or an open loop tune or a speed density tune----
12-20-2015, 09:47 AM
#5
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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 !
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 !