I know these codes indicate a lean system, on both banks. My question is, what would cause these to set only every few weeks? At first I thought it had something to do with altitude, as it happened while visiting the nearby mountains.(6000') But then I got the same codes even at my normal, home elevation (2000')
Each time, I just clear the code and everything is fine. Also: they cause no drivability issues.
Anybody got any idea?
Thanks
On Sat, 08 May 2004 19:21:56 GMT, Phillip said while waiving his hands wildly:
Sorry. Vehicle is: '96 Yukon, 5.7l vortec, 4x4
]I know these codes indicate a lean system, on both ]banks. My question is, what would cause these to ]set only every few weeks? At first I thought it ]had something to do with altitude, as it happened ]while visiting the nearby mountains.(6000') But ]then I got the same codes even at my normal, home ]elevation (2000') ] ]Each time, I just clear the code and everything is ]fine. Also: they cause no drivability issues. ] ]Anybody got any idea? ] ]Thanks
fuel pump is on its way out, or filter is full of dirt
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