997.1TT rough idle, P1522 Delivery of left fuel pump too low, help needed
#1
08-12-2018 | 01:46 AM
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997.1TT rough idle, P1522 Delivery of left fuel pump too low, help needed
Hi,
My 997.1TT runs rough idle at times, sometimes even stalls. Sometimes takes a moment for idle speed to stabilize after lifting throttle. Other than that the car pulls strong. ECU has been flashed, exhaust modified. Other than that stock. No fault codes except P1522, and that doesn't come back immediately.
I've looked at multiple correction of mixture adaptation values, they are 1,0000 and 1,0000 (B). Engine roughness values for cyl1, cyl 2, cyl 6 are negative values (-0,27 to -0,72), and cyl 3, cyl 4, cyl 5 are positive values (0,36 to 0,54).
Any ideas? Am I looking at any meaningful values, or should I look at some other values? If so, which ones?
Any help much appreciated! Thanks!
My 997.1TT runs rough idle at times, sometimes even stalls. Sometimes takes a moment for idle speed to stabilize after lifting throttle. Other than that the car pulls strong. ECU has been flashed, exhaust modified. Other than that stock. No fault codes except P1522, and that doesn't come back immediately.
I've looked at multiple correction of mixture adaptation values, they are 1,0000 and 1,0000 (B). Engine roughness values for cyl1, cyl 2, cyl 6 are negative values (-0,27 to -0,72), and cyl 3, cyl 4, cyl 5 are positive values (0,36 to 0,54).
Any ideas? Am I looking at any meaningful values, or should I look at some other values? If so, which ones?
Any help much appreciated! Thanks!
#2
08-12-2018 | 07:29 AM
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Joined: Dec 2013
Posts: 581
From: Southeast
Rep Power: 126
https://www.6speedonline.com/forums/...p-too-low.html
Durametric has the wrong code description for that. Google your code number and see above.
Durametric has the wrong code description for that. Google your code number and see above.
#3
08-30-2018 | 02:38 AM
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Registered User
Joined: Aug 2018
Posts: 2
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https://www.6speedonline.com/forums/...p-too-low.html
Durametric has the wrong code description for that. Google your code number and see above.
Durametric has the wrong code description for that. Google your code number and see above.
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