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Title: Vag Com Channel 91 Post by: turbo944s2 on October 20, 2018, 05:36:53 PM Hey guys,
Is this acceptable? or should the Cam adjustment B1 spec and Cam adjustment B1 act numbers be the same no exceptions?
Title: Re: Vag Com Channel 91 Post by: gman86 on October 21, 2018, 01:41:42 AM Hey guys, Is this acceptable? or should the Cam adjustment B1 spec and Cam adjustment B1 act numbers be the same no exceptions?
Those numbers are perfect. Title: Re: Vag Com Channel 91 Post by: turbo944s2 on January 07, 2019, 07:12:30 AM Found that my cam adjuster/ timing chain was off by 1 tooth. Hopefully I can get this corrected soon. UGH
Title: Re: Vag Com Channel 91 Post by: gman86 on January 07, 2019, 08:45:48 PM Found that my cam adjuster/ timing chain was off by 1 tooth. Hopefully I can get this corrected soon. UGH No way is your chain off. Those logs you posted are perfect. Title: Re: Vag Com Channel 91 Post by: turbo944s2 on January 08, 2019, 08:18:50 AM As the rpm increased it appears as if the car is pulling timing as the Requested vs Actual are about 7 degrees off(Retarded). I replaced the VVT solenoid, the rings and the problem still remains. The timing mark was set on the crank at the T instead of the arrow. I used my adjustable cam gear to fix it, then it threw a correlation code. Lined up the marks again, pulled the valve cover, noticed the intake cams relationship to the exhaust cam is off. I don't have a picture but when I looked really closely I could see it clear as day.
Title: Re: Vag Com Channel 91 Post by: gman86 on January 08, 2019, 04:05:19 PM As the rpm increased it appears as if the car is pulling timing as the Requested vs Actual are about 7 degrees off(Retarded). I replaced the VVT solenoid, the rings and the problem still remains. The timing mark was set on the crank at the T instead of the arrow. I used my adjustable cam gear to fix it, then it threw a correlation code. Lined up the marks again, pulled the valve cover, noticed the intake cams relationship to the exhaust cam is off. I don't have a picture but when I looked really closely I could see it clear as day. If you're losing cam spec as the revs increase, then it's an oil pressure issue. 5.9% adjustment with actual and spec being +/- 0.5 on idle is perfect. If you were a tooth out, the spec vs actual would be miles out and the adjustment would be double digits. Title: Re: Vag Com Channel 91 Post by: turbo944s2 on January 08, 2019, 04:20:47 PM I have over 100psi at 3000 rpm also those logs were before I realigned the timing marks and got a correlation code. I'll take a picture before i do the job. Im happy I didn't bend my ferrea valves.....
Sent from my SM-J327P using Tapatalk Title: Re: Vag Com Channel 91 Post by: turbo944s2 on March 02, 2019, 06:22:07 PM If you're losing cam spec as the revs increase, then it's an oil pressure issue. 5.9% adjustment with actual and spec being +/- 0.5 on idle is perfect. If you were a tooth out, the spec vs actual would be miles out and the adjustment would be double digits. Gman, I have replaced the 3 rings, the control valve and reset the cam timing in the back of the head. I have checked the oil pressure I have over 90 psi at 3000 rpm. No cam correlation codes, no adjuster slow response codes. The car is bucking at part throttle between 3000- 5000 RPM. I made a log to show the timing drifting as load is applied. Any suggestions? |