Check engine light ...P0018
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542 Posts
your still under warrenty right...when does our warrenty expire anyway
It's inconvenient, but at least there's a recorded fault code.
I hesitate to say diagnosis because there are likely a number of failures that can generate that fault code. (it's saying that the sensor either failed or is providing an unexpected output)
I don't think you'll have a prblm with interference - chain driven cam shafts, so you'd have to have jumped the chain on the sprocket -very remotely possible, but not likely withless than 20 times your current mileage. Still, you should bring it in as soon as possible, and if the check engine lamp flashes -stop the engine as soon as it is safe to do so.
As for flawless- it's machinery. Nothing has 100% reliability. We would like to think it can be done, but the reality is that none of us could afford any of what we have if we were to pursue 100% reliability to the best of our technology -and we still wouldn't get it. That's little comfort when you're the poor guy that's got the bad one, believe me I know. (1 in a million odds of dying is 100% to the guy that dies.)
Good luck
I hesitate to say diagnosis because there are likely a number of failures that can generate that fault code. (it's saying that the sensor either failed or is providing an unexpected output)
I don't think you'll have a prblm with interference - chain driven cam shafts, so you'd have to have jumped the chain on the sprocket -very remotely possible, but not likely withless than 20 times your current mileage. Still, you should bring it in as soon as possible, and if the check engine lamp flashes -stop the engine as soon as it is safe to do so.
As for flawless- it's machinery. Nothing has 100% reliability. We would like to think it can be done, but the reality is that none of us could afford any of what we have if we were to pursue 100% reliability to the best of our technology -and we still wouldn't get it. That's little comfort when you're the poor guy that's got the bad one, believe me I know. (1 in a million odds of dying is 100% to the guy that dies.)
Good luck
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3,359 Posts
If you have the scangauge (not scangauge 2, not sure if that's different) you push the bottom, middle button. That should bring up 4 options like gauge, scan, more... I think. Been a while since I needed to check. There should be something that says "scan" I think. Either way, hit that bottom, middle button and explore the menus.deff808 said:
Looks like it may be related to the VVTi and its actuator.
From the SVC Manual Diagnostic section for P0018:
P0018 Deviations in crankshaft and camshaft position sensor2 signals
(2 trip detection logic)
• Mechanical system (Timing chain has jumped tooth or
chain stretched)
From the SVC Manual Diagnostic section for P0018:
P0018 Deviations in crankshaft and camshaft position sensor2 signals
(2 trip detection logic)
• Mechanical system (Timing chain has jumped tooth or
chain stretched)
MONITOR DESCRIPTION
The ECM optimizes the valve timing by using the VVT (Variable Valve Timing) system to control the intake
camshaft. The VVT system includes the ECM, the Oil Control Valve (OCV) and the VVT controller.
The ECM sends a target duty-cycle control signal to the OCV. This control signal regulates the oil
pressure supplied to the VVT controller. The VVT controller can advance or retard the intake camshaft.
The ECM calibrates the intake valve timing by setting the intake camshaft to the most retarded angle while
the engine is idling. The ECM closes the OCV to retard the cam. The ECM stores this value as the VVT
learning value. When the difference between the target and actual intake valve timings is 5
camshaft. The VVT system includes the ECM, the Oil Control Valve (OCV) and the VVT controller.
The ECM sends a target duty-cycle control signal to the OCV. This control signal regulates the oil
pressure supplied to the VVT controller. The VVT controller can advance or retard the intake camshaft.
The ECM calibrates the intake valve timing by setting the intake camshaft to the most retarded angle while
the engine is idling. The ECM closes the OCV to retard the cam. The ECM stores this value as the VVT
learning value. When the difference between the target and actual intake valve timings is 5
°CA
(Crankshaft Angle) or less, the ECM stores it.
If the VVT learning value matches the following conditions, the ECM determines the existence of a
malfunction in the VVT system, and sets the DTC.
• VVT learning value: Less than 22.5
(Crankshaft Angle) or less, the ECM stores it.
If the VVT learning value matches the following conditions, the ECM determines the existence of a
malfunction in the VVT system, and sets the DTC.
• VVT learning value: Less than 22.5
°CA, or more than 45.2°CA.
• Above condition continues for 18 seconds or more.
This DTC indicates that the intake camshaft has been installed toward the crankshaft at an incorrect
angle, caused by factors such as the timing chain having jumped a tooth.
This monitor begins to run after the engine has idled for 5 minutes.
• Above condition continues for 18 seconds or more.
This DTC indicates that the intake camshaft has been installed toward the crankshaft at an incorrect
angle, caused by factors such as the timing chain having jumped a tooth.
This monitor begins to run after the engine has idled for 5 minutes.
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103 Posts
My trip to the dealer didn't make me happy ....
This morning ( -34C) and check engine light wasn't lit.
They claimed that there was nothing stored in the memory.
I know for fact that this is BS since just before I left the truck there
I checked again and the code was stored in memory (I did not remove it)
removed scangauge and handed over the key.
Should I be worried ?
The only thing I noticed that day when the light came on was
that the truck was slightly shaking when in was in drive and stopped with break applied.
I thought that the idle speed was touch high since it was fairly cold.
Life sucks today :disappoin
This morning ( -34C) and check engine light wasn't lit.
They claimed that there was nothing stored in the memory.
I know for fact that this is BS since just before I left the truck there
I checked again and the code was stored in memory (I did not remove it)
removed scangauge and handed over the key.
Should I be worried ?
The only thing I noticed that day when the light came on was
that the truck was slightly shaking when in was in drive and stopped with break applied.
I thought that the idle speed was touch high since it was fairly cold.
Life sucks today :disappoin
Your still in warrenty, did you get a reciept for todays work or something that shows you have tried to address the issue? Keep alll your ducks in a row so if something does happen you have documentation showing you have have tried to fix a problem. Good luck and just drive the truck and enjoy it. I mean it is going to happen if it happens.lifeisfun said:
Your still in warrenty, did you get a reciept for todays work or something that shows you have tried to address the issue? Keep alll your ducks in a row so if something does happen you have documentation showing you have have tried to fix a problem. Good luck and just drive the truck and enjoy it. I mean it is going to happen if it happens.lifeisfun said:
Your still in warrenty, did you get a reciept for todays work or something that shows you have tried to address the issue? Keep alll your ducks in a row so if something does happen you have documentation showing you have have tried to fix a problem. Good luck and just drive the truck and enjoy it. I mean it is going to happen if it happens.lifeisfun said:
lifeisfun said:
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