Rough idle, idle hangs and lean codes.... solved.
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Le Mans Master
Joined: Feb 2006
Posts: 5,267
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From: Phoenix AZ
Rough idle, idle hangs and lean codes.... solved.
It’s been a while since I posted, but I finally solved a 6-7 year old problem I have had.
Issue was rough idle (worse when cold and in closed loop) , idle would hang coming to a stop (would stop at under 2 mph on HUD) , crappy low speed low rpm driveability, throwing lean codes all the time P1071 P1074.
Stupid freakin injector orings were hard as a rock at the manifold. Found by spraying propane while watching O2 sensors not switching that were flatlined low, when hit with propane O2 sensor would bump. Also reset the LTFT’s with the Tech2.
$20 in orings and she purrs like a kitten now.
Issue was rough idle (worse when cold and in closed loop) , idle would hang coming to a stop (would stop at under 2 mph on HUD) , crappy low speed low rpm driveability, throwing lean codes all the time P1071 P1074.
Stupid freakin injector orings were hard as a rock at the manifold. Found by spraying propane while watching O2 sensors not switching that were flatlined low, when hit with propane O2 sensor would bump. Also reset the LTFT’s with the Tech2.
$20 in orings and she purrs like a kitten now.
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