Question about 2002 Cadillac Deville
2002 Cadillac deville DHS. Before take the smork test the battery became weak. When battery weak engine service soon light came on.There was two cords. Cam position sensor and Crank position sensor. When I fixed the battery I erase the cords. Then after drive 100 ml I went to get smork test. Test was rejected. I drive more 150ml to complete the drive cercle. I went take smork test same thing happned. Then I thought the problem is sensors I replaced the sensors. and drive 85 ml and went to test still drive cercle is not completed. please tell me what is this problem? What I have to do?
Whatever is causing the timing adjust itself at the wrong time. It could be anything from a vacuum leak, to a coolant sensor to electrical problem. By reading all the LIVE READINGS from the sensors & getting an emissions reading will help u narrow down the problem. It doesn't sound like a DIY fix. Equipment needed
Posted on Apr 20, 2017
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Posted on Jan 02, 2017
4.6 the twocrankshaft position sensors are located on the front of the block just above and to the left of the oil filter. not hard to replace.
Posted on May 19, 2009
crankshaft sensor is and the hormonic balance pulley and cam sesoor should b and the front of the motor toward the top. But to b sure u should get a book for u vehical
Posted on Mar 09, 2010
SOURCE: I have a 2002 cadillac
P0174 System Too Lean (Bank #2)
P0171 System Too Lean (Bank #1)
System to lean means that a fuel injector or injectors may be plugged up, or the oxygen sensor is sensing too lean of a condition.
How many miles do you have on this engine?
Have the O2 sensors ever been changed?
When was the last time you had a tune up?
Posted on Dec 18, 2010
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