P1514 Code Help
Thread Starter
Burning Brakes
Joined: Sep 2001
Posts: 1,005
Likes: 6
From: Denver, NC
P1514 Code Help
I have a car that I just replaced my A4 in. Set up is LSX 440 with 400 shot when drag racing. I just replaced the transmission and while it was out also replaced leaking seals in rear engine cover. Other than tranny problems the engine ran fine with no codes before my recent work done on it. Completed all work and now it starts momentarily then dies and reduced engine power message comes on. I have speed density tune so no MAF. TB looks fine all connections look good. Any ideas on this one?
Safety Car
Joined: Aug 2011
Posts: 4,449
Likes: 409
From: Portland OR
I would check the wiring.
I imagine you had to tilt the engine to get the trans out and you might have damaged some wiring.
Gnd sat the back of the drivers side head, ground on the block by the starter especially. The TAC module grounds are in that area.
Ron
I imagine you had to tilt the engine to get the trans out and you might have damaged some wiring.
Gnd sat the back of the drivers side head, ground on the block by the starter especially. The TAC module grounds are in that area.
Ron
Thread Starter
Burning Brakes
Joined: Sep 2001
Posts: 1,005
Likes: 6
From: Denver, NC
Burning Brakes
Joined: Jul 2006
Posts: 763
Likes: 45
From: Long Grove IL
If you have no MAF, it would appear that you would need to disable this in the PCM..
Originally Posted by GM
Conditions for Setting the DTC
• The PCM detects that the difference between the actual airflow (MAF) and the Speed Density calculated airflow is greater than expected.
• All of the above conditions met for less than 1 second.
• The PCM detects that the difference between the actual airflow (MAF) and the Speed Density calculated airflow is greater than expected.
• All of the above conditions met for less than 1 second.
Thread Starter
Burning Brakes
Joined: Sep 2001
Posts: 1,005
Likes: 6
From: Denver, NC
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