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they brought me this car to work on it has the code p0011 having to do with the bank one timing valve, another mechanic already worked on it ans has replaced the timing solenoid on bank 1 and cam sensor on bank 1 also.
have you guys encountered this issue before?
and what else should i check?im thinking its a timing issue but before i remove the timing cover does anybody have any suggestions?
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Nissan DTC P0011: Camshaft “A” variable timing control – Bank 1 – performance
This code refers to the VVT (variable valve timing) or VCT (variable camshaft timing) components and the car’s PCM (powertrain control module, also called an ECM). That consists of a few different components but the P0011 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is above a set limit (over-advanced), the engine light will be illluminated and the code will be set.
Potential Symptoms
Most likely a P0011 DTC will result in one of the following: hard starting, poor idle, and/or stalling. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.Causes
– Incorrect camshaft timing
– Wiring problems (harness/wiring) in intake timing control valve control solenoid system
– Continuous oil flow to VCT piston chamber
– Failed timing valve control solenoid (stuck open)Possible Solutions
This DTC code is a result of a mechanical fault of the VCT unit or related components, so there is no need for electrical diagnosis. Refer to vehicle specific repair manual to perform component tests for the VCT unit.Even though the passage I quoted says there’s no need for electrical diagnosis, I would still check out the wiring to the solenoid for good measure. Then I would check the timing of the camshaft to make sure it hasn’t jumped a tooth or that a tensioner or guide hasn’t gone bad. It’s more than likely going to need a timing set installed.
If it’s anything like Mazda’s P0006 or P0012, then the vehicle needs a timing chain with all components and a VVT actuator. Don’t you guys have a technical assistance hotline?
Oh I see. You aren’t with a dealership. If you work for a dealership and have a car that is especially tricky to diagnose, you call the manufacturer’s engineers for assistance, often referred to as “Tech Hotline.”
[quote=”MazdaMiata” post=144282]Oh I see. You aren’t with a dealership. If you work for a dealership and have a car that is especially tricky to diagnose, you call the manufacturer’s engineers for assistance, often referred to as “Tech Hotline.”[/quote]
yeah I don’t have the luxury …
Anyways, if it was simply a sensor problem it would show up under a later code series such as a p03xx for ignition timing. If you have access to the equipment to properly time the engine, I would go ahead and remove timing and valve covers and see if the system is lined up currently. I’d put money on it being a mechanical timing issue since it falls under a p00xx code classification. Also, what is vehicle mileage and condition of the oil? I know on a Mazda 3.0 v6 right after 100,000 miles the PCV will malfunction and burn oil causing an actuator failure and coincidentally tripping a p0011. This should be enough information to diagnose the problem so good luck.
yeah thats my next step to remove the chain cover and look into it, the only thing that I keep thinking about is that IF it had jumped a tooth the code would have been set AS SOON as I turn the engine on but thats not the case it will turn on the SES light after maybe 1-2 hrs of driving.
but I guess I really have NO other choice but to look in there.First, They will rarely jump teeth, just the chain stretches. Second, its not a continuous monitor. Takes 2 drive cycles and if the timing is right at the threshhold of the code trip parameters then it would make sense to take an hour or two.
[quote=”MazdaMiata” post=144290]First, They will rarely jump teeth, just the chain stretches. Second, its not a continuous monitor. Takes 2 drive cycles and if the timing is right at the threshhold of the code trip parameters then it would make sense to take an hour or two.[/quote]
oh i see I though the sensor was been monitored at all times. That makes sense now.
i think i’ve had old nissan stanza that wouldn’t start, did spark, fuel, air. all checked out, none of timing mark lined up…anymore…
yep, estimate was given for new sprockets, all timing chains…not knowing if head already f-up valves or not…if jumped teeth….it would worse than just throwing codes…i work on gm stuff…usually, if jumped teeth, usually bent valve first…even at idle…
good luck…have fun with it…good old working at indy shop…
[quote=”shospeed” post=144216]they brought me this car to work on it has the code p0011 having to do with the bank one timing valve, another mechanic already worked on it ans has replaced the timing solenoid on bank 1 and cam sensor on bank 1 also.
have you guys encountered this issue before?
and what else should i check?im thinking its a timing issue but before i remove the timing cover does anybody have any suggestions?[/quote]
Among other things, you will want to investigate for oiling issues. Wrong oil weight, low oil, low oil pressure will all cause that code as well. Is there deposits on the oil dipstick, towards the top? Usually darker brown to black in color, and stained onto the dipstick? That can indicate poor maintenance of the engine, and likely to have sludging in the engine and possibly restricted or blocked oil galleys. That is the most common problem I have found. Then if left like that long enough, cam phaser failure is likely.
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