ix cams po11 code
 

so i have installed a set of gsc stage 1 cams on my IX and i keep getting code p011 which is timing over advance bank 1 .... but i know my timing is dead on bc i pulled everything off down to the timing belt and found the problem fixed it. It runs fine sounds fine .... went out for a drive about 20 minutes everything is fine stop at a friends house turn the car off for about 5 mins leave go to go home get down the road a mile or two and bam check engine code drive home pull the codes .... p011 twice one hard code and soft (pending) code.... my ? is what could cause this??



yes i have a tune for the cams from mellon and am still working with him on this problem just looking for some insight on the problem

Mivec map over 28.8?

what do u mean ?


by over 28.8 ?

In the Mivec map (VVT in ecuflash), are any of the numbers in there over 30?

nope 28.8 is the highest number in there

ttt

ttt

DTC No. DTC Detection Conditions Trouble Areas
P0011
Advanced cam timing:
With warm engine and engine speed of between 550 rpm
and 4,000 rpm, all conditions (a), (b) and (c) met
(1 trip detection logic):
(a) Difference between target and actual intake valve
timings more than 5°CA (Crankshaft Angle)
(b) Current intake valve timing fixed (timing changes
less than 1°CA in 1 second)
(c) Variations in VVT controller timing more than
19°CA of maximum delayed timing (advanced)
• Valve timing
• Oil control valve (OCV)
• OCV filter
• Camshaft timing gear assembly
• ECM

sure you didn't jump a tooth??? go back and recheck.

I would think that ur cam timing is off, pull her apart and check again!

who else has a check engine light on after cams install?

thanks but not like i understand half of that basically that means timing is off some where

idk how it would of happened

in the process

I've been working with Troy on this and it's probably important to add some history.

I tuned the car before the cams were installed, no issues.

Troy installed new cams, loaded my new ROM and the problems started.

I verified the ROM I used was correct...It's a base ROM I've used on countless cars with the same mods/boost/octane etc.. to get us started before dialing in the fuel/timing etc.. In fact it's the same ROM he had before just with updated fuel/timing maps..so I'm very confident that there isn't a problem with the tune.

I also suspect that one of the cams is out of time but suggested that he create this thread to get more people to help because I'm out of ideas...I do most of my own work but I'm not really a mechanic, just a tuner :lol:

He sent me a log of the car doing a pull and it looks terrific..nothing odd about it. It might need some tweaking to perfect the tune but I'm hesitant to move forward until the CEL issue is resolved. Wrapping a tune around a problem isn't a good idea because when the real issue is fixed later the tune is going to be way out of whack which could be dangerous.

there's got to be a simple solution to the problem...hopefully someone can help us figure it out.

The ECM optimizes the intake valve timing 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. If
the difference between the target and actual intake valve timings is large, and changes in actual intake valve timing are small, the ECM interprets this as the VVT controller stuck malfunction and sets a DTC.

You may have inadvertently clogged the OCV filter located on the back of the head passenger side if I remember correctly. Without looking I couldnt tell you. Use correct build up oil when installing new cams. Rtv in the oil system when putting valve cover back together. Im just throwing things out there to help narrow it down.

timings dead on....only thing i can do now is pull the intake cam out and check that again so thats what im about to do....