2003 Cavalier 2.2L P0171 P0340 P1133
#1
2003 Cavalier 2.2L P0171 P0340 P1133
I have a 2003 Chevy Cavalier with 90,000.00 miles and I get the following codes p0171 p0340 p1133 When i put the car in drive the entire car shakes.... What could be the issue
I know P0171 System too Lean (Bank 1)
P0340 - Camshaft Position Sensor 'A' Circuit Malfunction
p1333 HO2S-11 (Bank 1 Sensor 1) Insufficient Switching
Could the oxygen sensor be causing all these codes?
I notice this vehicle does not have a camshaft position sensor but i get the code for it.
Any ideas?
I know P0171 System too Lean (Bank 1)
P0340 - Camshaft Position Sensor 'A' Circuit Malfunction
p1333 HO2S-11 (Bank 1 Sensor 1) Insufficient Switching
Could the oxygen sensor be causing all these codes?
I notice this vehicle does not have a camshaft position sensor but i get the code for it.
Any ideas?
#2
The PCM cannot manage the fuel with missing or irregular CMP sensor input. On the L61 Ecotec the ICM synthesizes the CAMOUT signal from the way the spark plugs fire and thus the culprit is probably one or more of the ICM, ignition coils, and spark plugs. Fix P0340 and I think P0171 and P1133 will go away.
#3
I replaced the ignition control module and its still doing the same thing. Although I am only getting code P0171
Whenever I drive and come to a stop (idling) the RPMs will move from the .5 to 1 back and forth and the engine would shake.
Also is it true this vehicle does not have a Mass Air Flow sensor?
Could it be the O2 sensor? If so which one? The front?
Whenever I drive and come to a stop (idling) the RPMs will move from the .5 to 1 back and forth and the engine would shake.
Also is it true this vehicle does not have a Mass Air Flow sensor?
Could it be the O2 sensor? If so which one? The front?
Last edited by umoms; December 9th, 2011 at 4:36 PM.
#6
I was asking if you had pulled the plugs and inspected them. Replaced the spark plugs "4 months ago," then but with what? The wasted spark ignition on the L61 doesn't like fancy/exotic spark plug configurations. It's best to use the correct ACDelco plugs for the application.
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#8
Okay, then. The PCM constantly adjusts the short term fuel trim (more or less than the programmed norm) based on the upstream O2 sensor once in the closed loop. It then figures the long term fuel trim by keeping track of the short term fuel trim values. When the long term fuel trim exceeds some value (~23%, i.e., it had to add that much fuel), it sets P0171. So, the O2 sensor is out of calibration (any exhaust leak around the sensor?), the MAP sensor is out of calibration, fuel injectors are clogged up, or the fuel pressure is low, perhaps. Just for giggles, post the freeze frame data and see if anything jumps out?
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