...cadillac deville northstar engine the car is idling rough and when mashing the accelerator down to floor car will shutoff i replace mas in air cleaner hose no change Check for vacuum leaks around the ...
...2000 cad deville have? There will be two primary O2 sensors, one on each exhaust manifold (one for each bank of cylinders in the engine). There will also be one behind each catalytic converter (used ...
...This link has pictures but has a lot of steps I didn't need to do: ...
...po420 P0420 Error Code: Catalyst System Efficiency Below Threshold (Bank 1)\ This means that your bank 1 catalytic converter is not doing its job, or the O2 sensor system monitoring it has an
...O2 sensor or the O2 sensor before the catalytic convertor. Sensor 2 refers to the downstream O2 sensor or the sensor located after the Catalytic convertor. I hope that helps, let me know if you have ...
...2000 Cadillac deville with the code of p0420. . NO it will not . code po420 refers to cat converter system , bank 1--efficiency below threshold===causes cat converter---wiring--HO2S 2 Have the cat ...
o2 sensor for bank 1. Possible causes are many. First look at the sensor readings. You should see a fluctuation of voltage readings. If the sensor is not fluctuating it should set another code with it
Question about 2000 DeVille
...Cadillac Deville 2000 has. I find 3 and replace them but still I have P0155 code for B2S1? Need help! Which engine ? Some have four and always double check the connections as they can set the codes . ...
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