I cleaned the throttle body on my 2000 Mazda MPV after getting a P0507 code. When I reinstalled the air intake boot, I was surprised to find that there was no hose connected to the small port marked in blue in the picture. There is only one hose, marked in red, which fits the larger port marked in green.
I stopped by a local Mazda dealer and asked about it. They told me that there should definitely be a hose connected to the small port. I came home and searched the area several times, but I still cannot find any extra loose hose.
There is also an upper port on the air intake boot. I then noticed that the OEM GY01-13-220B intake boot uses a single 90-degree elbow at this upper port, pointing toward the front of the engine. However, my current fitting is a T-connector (last picture marked pink). One branch goes forward toward the middle/front of the engine, while the other branch goes backward toward the middle/rear of the engine.
I previously had some work done at a local garage, but I do not remember exactly what was done in this area. I am wondering whether the current setup may have been modified or misconfigured at some point. What concerns me most is that leaving the small blue port completely open does not seem correct.
My current plan is to:
1. Replace the T-connector on the upper port with the OEM-style 90-degree elbow.
2. Keep the hose that currently runs toward the front of the engine connected to that upper elbow.
3. Take the hose that currently runs toward the rear of the engine from the T-connector and connect it instead to the small blue port on the intake boot.
Does this sound correct?
If anyone is familiar with the 2000 Mazda MPV 2.5L V6 and can confirm where these hoses are supposed to connect, I would really appreciate your help before I change anything.
Thank you very much.
I stopped by a local Mazda dealer and asked about it. They told me that there should definitely be a hose connected to the small port. I came home and searched the area several times, but I still cannot find any extra loose hose.
There is also an upper port on the air intake boot. I then noticed that the OEM GY01-13-220B intake boot uses a single 90-degree elbow at this upper port, pointing toward the front of the engine. However, my current fitting is a T-connector (last picture marked pink). One branch goes forward toward the middle/front of the engine, while the other branch goes backward toward the middle/rear of the engine.
I previously had some work done at a local garage, but I do not remember exactly what was done in this area. I am wondering whether the current setup may have been modified or misconfigured at some point. What concerns me most is that leaving the small blue port completely open does not seem correct.
My current plan is to:
1. Replace the T-connector on the upper port with the OEM-style 90-degree elbow.
2. Keep the hose that currently runs toward the front of the engine connected to that upper elbow.
3. Take the hose that currently runs toward the rear of the engine from the T-connector and connect it instead to the small blue port on the intake boot.
Does this sound correct?
If anyone is familiar with the 2000 Mazda MPV 2.5L V6 and can confirm where these hoses are supposed to connect, I would really appreciate your help before I change anything.
Thank you very much.
Images (Click to enlarge)
Aug 7, 2026 at 8:51 PM