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code p0016

 
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  #1 (permalink)  
Old 16 Feb 2010, 01:00 pm
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Default code p0016

Just had this come up on my 2003 pt gt has anyone had this problem?
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Old 16 Feb 2010, 01:13 pm
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Default Re: code p0016 this is what i know so far

What does that mean?

The crankshaft position sensor (CKP) and Camshaft position sensor (CMP) work in harmony to control the spark/fuel delivery and timing. They both consist of a reluctor, or tone, ring which passes over a magnetic sensor, which generates a voltage, indicating position.
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The crankshaft sensor is part of the primary ignition system and functions as the "trigger". It detects the position of the crankshaft relays that information on to the PCM or the ignition module (depending on the vehicle) to control spark timing. The Camshaft position sensor detects the position of the camshafts and relays the information to the PCM. The PCM uses the CMP signal to identify the beginning of the injector sequence. What ties these two shafts and their sensors together is the timing belt or chain. The cam and crank should be precisely timed together. If the PCM detects that the Crank and Cam signals are out of time by a specific number of degrees, this P0016 code will set.
Symptoms

Symptoms of a P0016 will or may include:

* Malfunction Indicator Lamp (MIL) illumination
* The engine may run but with reduced performance
* The engine may crank but not start
* The engine may exhibit a rattle near the harmonic balancer indicating the tone ring is damaged
* The engine may start and run, but poorly

Causes

Causes may include:

* Timing chain stretched, or timing belt skipped a tooth due to wear
* Misalignment of timing belt/chain
* Tone ring on crankshaft slipped/broken
* Tone ring on camshaft slipped/broken
* Bad crank sensor
* Bad cam sensor
* Damaged wiring to crank/cam sensor
* Timing belt/chain tensioner damaged

Possible Solutions

1. First, visually inspect the cam and crank sensors and their harnesses for damage. If you notice broken/frayed wires, repair and recheck.
2. If you have access to a scope, check the cam and crank patterns. If a pattern is missing, suspect a bad sensor or a slipping tone ring. Remove the cam gear and the crankshaft harmonic balancer and inspect the tone rings for proper alignment and make sure they're not loose or damaged or that they haven't sheared the key that aligns them. If they are properly installed, replace the sensor.
3. If the signal appears normal, then check the timing chain/belt for proper alignment. If it's misaligned, check for a damaged tensioner that may have allowed the chain/belt to slip a tooth or several teeth. Also check that the belt/chain isn't stretched. Repair and recheck.
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Old 25 Nov 2011, 11:58 pm
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Default Re: code p0016

Well this is my last attempt on trying to get my pt cruiser running again, timing belt snapped. I replaced the timing belt, water pump and tensioner. Also replaced the crank sensor. The code P0016 keeps on coming on, i have checked the timing numerous times and it is always dead on. I dont know what to do now. Sometimes it will idle and sometimes it wont, if it does its usually over 1500 rpm. Please some one help. Has anyone ever had this problem?
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Old 26 Nov 2011, 07:04 am
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Default Re: code p0016

hovchov,

The code your getting is for the Crank OR Cam sensor. You replaced the timing belt and the Crankshaft sensor, now you have to check or replace the Camshaft sensor. The code says that either one could be bad.
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Old 26 Nov 2011, 09:40 am
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Default Re: code p0016

Before replacing the camshaft sensor, is there anyway to test it to know if it is bad?
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Old 26 Nov 2011, 11:17 am
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Default Re: code p0016

Not that I know of.
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  #7 (permalink)  
Old 27 Nov 2011, 03:34 pm
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Default Re: code p0016

Just replaced the camshaft sensor and the same code comes back as soon as the engine starts. Now it does not idle at all.
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Old 27 Nov 2011, 04:30 pm
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Default Re: code p0016

Have to ask, where did you buy the sensor?
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Old 27 Nov 2011, 06:39 pm
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Default Re: code p0016

Autozone
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  #10 (permalink)  
Old 27 Nov 2011, 06:56 pm
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Join Date: Sep 2001
Posts: 27,743
Default Re: code p0016

Not good. Our PT's don't like after market electrical parts. They might be good for awhile but sooner or later they will stop functioning because of the poorly made guts inside. They may look the same but the quality isn't there.
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