Error code 130716 Vanos, exhaust: control error, camshaft is stuck

[JasonMKV]

Hey guys,

My car has 56,000 miles on it and on stage 2 right now (BM3). Recently I got this code on track and it did cut my power right after it showed up, I cannot feel the turbo with this code on. I am using 0w20 and some people say I need to get the exhaust solenoid or the actuator checked. Anybody have ever had experience with this code or have any thoughts on it? Without power, there is no point to go to the track, even though the car drives smoothly on the street.

PS: When I start the car, the idle is not stable sometimes.

Update: I put the car back to stock power and running without showing this code on the track. Tested on Homestead and Sebring. I will keep you guys updated. Also, I got myself a Miata, it is funny that I said there is no point to go to the track without enough power in the car. People do change

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[zrk]

Exhaust cam bolt. If you're not sure what you're doing bring it to the dealer/shop.

 

[JasonMKV]

Exhaust cam bolt. If you're not sure what you're doing bring it to the dealer/shop.

Have you had this issue before?

 

[zrk]

Have you had this issue before?

I have fix this issue on other cars before. I have not ran into it on my car.

 

[JasonMKV]

I have fix this issue on other cars before. I have not ran into it on my car.

Thanks for the information.

 

[JaredFloyd]

Resurrecting this thread. I had the same issue on track. I'm using EcuTek. Very repeatable on track. I swapped vanos solenoids and problem was still on exhaust cam. I then replaced both central valves and exhaust cam position sensor. Still going into limp mode and throwing the same DTC 130716. Started data logging vanos parameters and intake cam position directly matches target angle but exhaust cam position deviates significantly from target values. At low loads, exhaust cam position matches target (so vanos is functional on the exhaust cam) but at track pace it varies by as much as 30 degrees. The exhaust cam control valve duty cycle is jumping around (likely trying to force alignment - assuming closed loop feedback). Images attached of low load alignment and race pace deviation. Bad cam sprocket? Blockage in oil passage leading to central valve? Other suggestions?

 

[JasonMKV]

Resurrecting this thread. I had the same issue on track. I'm using EcuTek. Very repeatable on track. I swapped vanos solenoids and problem was still on exhaust cam. I then replaced both central valves and exhaust cam position sensor. Still going into limp mode and throwing the same DTC 130716. Started data logging vanos parameters and intake cam position directly matches target angle but exhaust cam position deviates significantly from target values. At low loads, exhaust cam position matches target (so vanos is functional on the exhaust cam) but at track pace it varies by as much as 30 degrees. The exhaust cam control valve duty cycle is jumping around (likely trying to force alignment - assuming closed loop feedback). Images attached of low load alignment and race pace deviation. Bad cam sprocket? Blockage in oil passage leading to central valve? Other suggestions?

Very Interesting and I am very sorry for your bad experience on the track. Trust me, I am still dealing with this issue at this moment. One thing I noticed, when my oil temp got close to 280 degrees on the track, the limp mode would kick in. I was wondering if this has anything to do with fuel reserve. I was thinking about to go back to stock tune and see if this code would ever come back again on the track. Really a pain in the ass.

 

[razorlab]

One thing I noticed, when my oil temp got close to 280 degrees on the track, the limp mode would kick in.

Do also notice your oil pressure changing then?

 

[JasonMKV]

Do also notice your oil pressure changing then?

I am not sure about this. How can I check it.

 

[JaredFloyd]

Some additional data (before I replaced the central valves). Note some of this info including videos and data screen shots can be found here: https://sectoronedesign.wordpress.c...time-attack-ridge-motorsports-park-july-2023/

When this first happened... On the third lap, I hit the downhill compression after Turn 7 and the car went into limp mode with limited hp. No check light or warnings on the dash. I cleared the code (DTC 130716, VANOS, exhaust: Control fault, camshaft jammed) and went out for session two and the car pulled power in the same location on track. Because it happened at the exact same location, I was suspecting something to do with the huge compression or right turn at the bottom of the hill. Logged oil pressure looked fine with no dips. I tried adding an extra 0.75 qt of oil just in case for session 3 with no change. I then replaced the oil with fresh Motul X-cessgen2 5w-40 and tried it again in the last session on Saturday. Still going into limp mode at T7. T7 is after a very long medium speed left hander. Conditions at T6 (min speed): oil temp 226F, IAT: 104F, RPM: 4471, oil pressure: 73 psi (5.00 bar). Conditions at T7 bottom of hill (min speed): oil temp 232F, IAT: 106 F, RPM: 3710, oil pressure: 67 psi (4.62 bar). Oil pressure vs RPM is similar to unloaded conditions.
I swapped vanos solenoids to determine if the issue was solenoid or valve related. I also disconnected and reconnected every connector related to the vanos sensors and solenoids. I reconnected the ECU connectors and inspected the wiring to make sure everything was supported (theory being the large compression was causing a loose wire to pull on a connection creating an intermittent failure). Took the car out for the second session and hit limp mode in the same spot with the same trouble code. Conclusion – not solenoid related and probably not wiring related. Most likely the exhaust cam central valve, which was the likely culprit all along based on internet research. It just didn’t make sense to me why it would happen at the same location on track every time if it was the valve. I reset the code and decided to take it easy at T7 and see if I can complete a slow lap without hitting limp mode. I made it past T7 with full power but hit limp mode at T11.

 

[JaredFloyd]

Do also notice your oil pressure changing then?

I'm seeing significant cam position variation with oil temp at 230 F. I'm not suggesting 230 F is triggering this issue, just noting reasonable oil temps when this is observed.

 

[ABQautoxer]

Some additional data (before I replaced the central valves). Note some of this info including videos and data screen shots can be found here: https://sectoronedesign.wordpress.c...time-attack-ridge-motorsports-park-july-2023/

When this first happened... On the third lap, I hit the downhill compression after Turn 7 and the car went into limp mode with limited hp. No check light or warnings on the dash. I cleared the code (DTC 130716, VANOS, exhaust: Control fault, camshaft jammed) and went out for session two and the car pulled power in the same location on track. Because it happened at the exact same location, I was suspecting something to do with the huge compression or right turn at the bottom of the hill. Logged oil pressure looked fine with no dips. I tried adding an extra 0.75 qt of oil just in case for session 3 with no change. I then replaced the oil with fresh Motul X-cessgen2 5w-40 and tried it again in the last session on Saturday. Still going into limp mode at T7. T7 is after a very long medium speed left hander. Conditions at T6 (min speed): oil temp 226F, IAT: 104F, RPM: 4471, oil pressure: 73 psi (5.00 bar). Conditions at T7 bottom of hill (min speed): oil temp 232F, IAT: 106 F, RPM: 3710, oil pressure: 67 psi (4.62 bar). Oil pressure vs RPM is similar to unloaded conditions.
I swapped vanos solenoids to determine if the issue was solenoid or valve related. I also disconnected and reconnected every connector related to the vanos sensors and solenoids. I reconnected the ECU connectors and inspected the wiring to make sure everything was supported (theory being the large compression was causing a loose wire to pull on a connection creating an intermittent failure). Took the car out for the second session and hit limp mode in the same spot with the same trouble code. Conclusion – not solenoid related and probably not wiring related. Most likely the exhaust cam central valve, which was the likely culprit all along based on internet research. It just didn’t make sense to me why it would happen at the same location on track every time if it was the valve. I reset the code and decided to take it easy at T7 and see if I can complete a slow lap without hitting limp mode. I made it past T7 with full power but hit limp mode at T11.

I saw on your blog you ended up replacing the bolt and saw no improvement. I'm getting this code and curious if its also a false alarm. Any other information on this?

 

[JasonMKV]

I saw on your blog you ended up replacing the bolt and saw no improvement. I'm getting this code and curious if its also a false alarm. Any other information on this?

I went to the dealer and got an update on the ecu (Newest version, released in 2022). That update removed my stage 2 BM3 tune and the car is running stock without showing that code on the track. Oil temp is still high (280 degrees). However, no limp mode anymore. I am happy with this result. Got the car tested in both Homestead and Sebring. With only high oil temp, no significant power loss. I highly suspect that the tune is too much for this car to handle on the track. The Supra GT4 is $220K on the market with 430HP. That car is expensive for a reason. I do not think it is gonna be a cheap fix, but I do hope everybody who has this problem can find a way to get it solved and enjoy stage 2 power on the track.

 

[Tsuki8]

I went to the dealer and got an update on the ecu (Newest version, released in 2022).

Able to check and post back the iStep version they updated to? (Unfortunately not easy)
Be interesting where the current numbers are.
Will be another data point for others coming across the same error.
One of the sites has been at 4.39.34 - S18T-22-11-553 (November 2022) for awhile.

 

[JasonMKV]

Able to check and post back the iStep version they updated to? (Unfortunately not easy)
Be interesting where the current numbers are.
Will be another data point for others coming across the same error.
One of the sites has been at 4.39.34 - S18T-22-11-553 (November 2022) for awhile.

Previous ID# S18T - 21 -07 -519
Actual ID # S18T -22-07- 530

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