Problem... too lean while idleling
12-20-2009, 02:03 PM
#1
Thread Starter
Join Date: Mar 2008
Location:
Posts: 36
Problem... too lean while idleling
So the car just started doing this recently... I keep getting DTC code P0174 (system too lean) and the car idles a little rough every so often... But it only happens when the car is at an idle and never seems to happen on a cold start, only on a start after the car has been driven for a bit... Dosent happen while the car is being driven...
So im wondering what could be causing this? Could it be in the tune?
So im wondering what could be causing this? Could it be in the tune?
12-20-2009, 02:28 PM
#2
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
P0174 is the bank 2 equivalent of P0171, click here to see the possible causes.
Since it is only apparently affecting one bank I would first check for exhaust leaks in the manifold, or near the O2 front sensor on bank 2.
Since it is only apparently affecting one bank I would first check for exhaust leaks in the manifold, or near the O2 front sensor on bank 2.
Thread
Thread Starter
Forum
Replies
Last Post
stangin1996gt
4.6L (1996-2004 Modular) Mustang
0
09-21-2015 11:01 AM
