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I have repaired the intake arm on my intake but haven’t been able to remember where this vacuum line goes. Any suggestion? Vacuum line marked in yellow. Where does it go?
I know this is of utterly zero help to you in your present predicament, but it'll help for next time you're more than a few bolts deep in an engine:
Take more pictures. Every step of the way, every assembly that gets removed, every vacuum line, every wiring harness.
once buttoned up the ca, and attached the rogue vacuum line to the MAP sensor I scanned for codes, and I got the following P0106 (pending), P1916, and P0521(that I had also before fixing the manifold actuator. I did erase the codes but quickly came back after a short drive. Do I have to go through a longer drive cycle? A quick search online shows P0106 and P1916 related to the manifold pressure, so I assume it was the wrong reading while the vacuum line was disconnected, but why are those still popping up?
Pending MAP code is likely due to having the vacuum line disconnected. Make sure you didn't miss or mixup any vacuum connections. The P0521, indicates a tumble flap issue... one thing to check is do the vacuum actuators work, which can be done with a hand vacuum pump.
The repair linkage is really a temporary solution, did the tumble mechanism feel smooth and freely "rotate"?
I replaced all three vacuum actuators and used new hoses. The flaps were working fine, just the pivoting arm was broken in the usual spot. The car has 70k miles, that is why I just repaired it.
The P0521 returning indicates the mechanism is still not moving as expected.... could be a new issue from taking things apart or bad new components. Again, double check that all the vacuum lines are connected and connected correctly. Check the new actuators with a hand vac pump, see that they move.
Does your scanner support bi-directional communication? You can actuate the mechanism, watch to see it move and see the sensor detect the change.
The P0521 returning indicates the mechanism is still not moving as expected.... could be a new issue from taking things apart or bad new components. Again, double check that all the vacuum lines are connected and connected correctly. Check the new actuators with a hand vac pump, see that they move.
Does your scanner support bi-directional communication? You can actuate the mechanism, watch to see it move and see the sensor detect the change.
double checked all connections and everything appears to be ok. I still have codes popping out. I’m going to start thinking about a new intake. I’m using torque to scan for codes so no two way communication.
I did not realized that the two codes were not active but stored in the car’s memory. I used a different scanner and found no trace of them, so all good. The repair went well
I did not realized that the two codes were not active but stored in the car’s memory. I used a different scanner and found no trace of them, so all good. The repair went well
Does anyone happen to know where this vacuum line goes in the m272 engine? I did intake manifold and this is the only line I forgot to take a picture of before I took it apart
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