P0010 and P0020 code on Lumina Ls 2006

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#1
Need some advice guys: the car have higher mileage so I remove the actuator and clean the filter in both bank 1&2 cozy it has oil sludge build up... and check the resistance of 2 actuator it was 7.5 ohms same with the new actuator spare that I have...I check also the harness bank 1 and 2 and there is no broken wire...I change oil also ... After I clear the code and road test the car ... Check engine light appear and it was the same code.... could it be the PCM?


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#2
A 2006 Chevrolet LUMINA ? US sales ended In @2002?
So give some details - which engine, platform or country where located

BUT its unlikely the PCM is the problem.
Engine oil pressure, sludge/varnish, other codes are the first things to look at.
 
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#3
Hi kevs its Chevrolet Lumina Ls 06,V6 alloy tech engine.
Built in Australia.i do the change oil already,the oil pressure is ok and clean the both actuators bank 1 and 2 and the resistance reading of actuators are 7.5 ohms same reading with my spare actuator


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A 2006 Chevrolet LUMINA ? US sales ended In @2002?
So give some details - which engine, platform or country where located

BUT its unlikely the PCM is the problem.
Engine oil pressure, sludge/varnish, other codes are the first things to look at.
I'm still working on it,but as you said the PCM is the rare issue...that's last thing to be check I think...


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#7
A 2006 Chevrolet LUMINA ? US sales ended In @2002?
So give some details - which engine, platform or country where located

BUT its unlikely the PCM is the problem.
Engine oil pressure, sludge/varnish, other codes are the first things to look at.
IMG_4087.JPG IMG_4090.JPG




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#8
I will get back later BUT for now.....
Add I bottle of 'risolone' an oil detergent -
The spare solenoid - this was a NEW OEM part? spec is 7-12 Ω
any other codes....

>>>>>>>>Is there 12v at B1 and B2 intake solenoids KOEO?
 

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#9
I will get back later BUT for now.....
Add I bottle of 'risolone' an oil detergent -
The spare solenoid - this was a NEW OEM part? spec is 7-12 Ω
any other codes....

>>>>>>>>Is there 12v at B1 and B2 intake solenoids KOEO?
Yes it was new OEM, and the ohms reading is 7.5.
KOEO B1 Harness B2 Harness
white - violet white - orangeblack
(-) (+)00.00 - (+)2.57 (+)00.00 - (+)2.56
(+) (-)00.04 - (-)9.28 (-)00.01 - (-) 9.29


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#10
I do not have a diagram for this Chevrolet SO using cross reference application, wires will be different color. BUT
3 wires?
I believe this solenoid has 2 wires.... 3wires* could this be the CMP sensor?

white - violet white - orangeblack


LEGEND
1 Camshaft Position (CMP) Sensor – Exhaust Bank 1
2 Camshaft Position (CMP) Actuator Solenoid - Exhaust Bank 1
3 Camshaft Position (CMP) Actuator Solenoid – Intake Bank 1
4 Camshaft Position (CMP) Sensor – Intake Bank 1
5 Camshaft Position (CMP) Sensor – Intake Bank 2
6 Camshaft Position (CMP) Actuator Solenoid – Intake Bank 2
7 Camshaft Position (CMP) Actuator Solenoid – Exhaust Bank 2
8 Camshaft Position (CMP) Sensor – Exhaust Bank 2
 

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#11
I do not have a diagram for this Chevrolet SO using cross reference application, wires will be different color. BUT
3 wires?
I believe this solenoid has 2 wires.... 3wires* could this be the CMP sensor?

white - violet white - orangeblack


LEGEND
1 Camshaft Position (CMP) Sensor – Exhaust Bank 1
2 Camshaft Position (CMP) Actuator Solenoid - Exhaust Bank 1
3 Camshaft Position (CMP) Actuator Solenoid – Intake Bank 1
4 Camshaft Position (CMP) Sensor – Intake Bank 1
5 Camshaft Position (CMP) Sensor – Intake Bank 2
6 Camshaft Position (CMP) Actuator Solenoid – Intake Bank 2
7 Camshaft Position (CMP) Actuator Solenoid – Exhaust Bank 2
8 Camshaft Position (CMP) Sensor – Exhaust Bank 2
Yes it has 2 wires bank 1 CMP actuator solenoid it's white and violet.
And in bank 2 CMP actuator solenoid it's white and orange/black.
Today I install new actuator OEM,but when test drive it the same code that I've got... At rpm 1500 base upon the freeze frame data.... Do you think the ECM is the issue?


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#12
Your PCM is not seeing voltage on these 2 solenoids.
KOEO and connector unplugged what is V on terminal 1? - wiggle shake connector and harness as you test.
1) Your 4 solenoids should have 2 wires 1 wire will be same color on all 4 this is power and expected to be @battery voltage....
answer will determine next step.
 

billr

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#13
"KOEO B1 Harness B2 Harness
white - violet white - orangeblack
(-) (+)00.00 - (+)2.57 (+)00.00 - (+)2.56
(+) (-)00.04 - (-)9.28 (-)00.01 - (-) 9.29"

It has taken me a while to get any clue what we have here, having no schematic is a real problem. However, am I correct in understanding that the above readings are resistance (ohms) with the meter probes tried "reversed" for each type of reading? Are the solenoids disconnected from the harness, but the harness still connected to the PCM? If so, then those resistance readings are probably meaningless. I expect there is an "open collector" driver for each of those solenoids and you need to read voltages at those wires with the solenoid (or some other load) connected. I gotta ask... KOEO means "Key-on, Engine-off" in your part of the world, correct?

Kev2, confirm you had a recent typo, there are only two solenoids here, not 4.
 
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#14
This is A GM LY7 and the variants, why I do not have wiring diagram and colors.
the vehicle has 4 solenoids, 2 wires each , 1 a common source 12v power.
The code is for 2 solenoids, both of the intakes, PCM not seeing expected voltage.

SO KOEO, connector unplugged, terminal 1 the white wire* should have 12v YES / NO ?


*Based on your description of wire colors I am choosing white as power if terminal 1 location confirms hunch
 

billr

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#15
I would sure like the OP to confirm whether this has a total of two actuator solenoids or four. I'm reading "two" from what is in reply #5, and the OP has posted pictures of two. I realize similar-sounding Chevy engines for the N. American market had four actuators, but this is actually Holden engine built for S. Africa and the Middle East. It may be different.

OP, kev2 and I are saying the same thing: you need to have the solenoids connected and check voltage from ground to each wire. One wire on each solenoid should have battery voltage (about 12V) all the time. The other wire will have battery voltage until the engine is running, then will pulse to ground as the valve timing is being varied. That pulsing to ground may not happen at all at idle, the engine probably has to be revved-up a bit, and maybe under load, to see the solenoids being modulated.

With a problem on both banks 1 & 2, I think kev2 and I are hoping this is *simply* a matter of no power to the solenoids; that steady 12V that is easy to check at KOEO.