- Joined
- Jun 28, 2001
Getting a cam sync fault whan I cold start it. Idles like crap around 500 rpm till coolant gets to 160+ then it smooths out and I can restart it with no fault.
Cam Sync Fault
- Thread starter sackracing
- Start date
forcefed3.8's
Buckeye Bullet
- Joined
- May 26, 2002
What are you using for an ignition?
- Joined
- Jun 28, 2001
coilpack
- Joined
- Jun 28, 2001
sync btdc is in the 90s, jumps to high 80s and low 100s
sync flag toggling between 1 and 0
sync flag toggling between 1 and 0
95 would mean your cam sensor is set at 25*, so something is moving it around, normally mine will vary by 1-2* at the most. check the cam sensor isnt moving around
- Joined
- Jun 28, 2001
Should I move it?
- Joined
- Jun 28, 2001
95 is in the yellow. Goes green in the 80s.
- Joined
- Jun 28, 2001
I'm at 12 on the crank reference angle, verified with timing light.
- Joined
- Jun 28, 2001
I'll pull it out tomorrow and check. The sensor itself is tight, I just checked that.
- Joined
- Jun 28, 2001
Sync seems to wanna be around 95, jumps to down to 86 and up to 103
- Joined
- Jun 28, 2001
It's all new stuff
- Joined
- Jun 28, 2001
Edit
since the cam phasing that the xfi is reporting is just a comparison between the crank sensor and the cam sensor, if the reading is jumping around it must be an issue with either the cam sensor or the crank sensor.
It might make sense to pull the balancer and verify it was torqued properly and not shifting around.
Bob
It might make sense to pull the balancer and verify it was torqued properly and not shifting around.
Bob
- Joined
- Jun 28, 2001
We just torqued the balancer, it is for sure tight. Need to check cam sensor and crank sensor tho.
