If so, how much did it cost? New air filter oil change. When replacing it, you have to remove the entire intake manifold so watch out for the coolant bypass hose plug it before hand. The car runs rough at both high and low rpm Has anyone had this problem before and found a fix? Likewise, the vacuum hose on the bottom of the bypass solenoid had began to dry rot which made the tubing crumbly, this preventing a perfect seal. Idle is smooth and car runs well. I appreciate the images and easy to follow step by step. Start by carefully unplugging the three pin harness. If you look at the diagram, it has the chamber attached to the long part runner valve.
I fixed it last year and it seemed to fix the problem. Here at Advance Auto Parts, we work with only top reliable Intake Manifold Runner Valve product and part brands so you can shop with complete confidence. It came as an assembly with the sensor attached to the runner value and chamber. I will be sure to reset the computer again tomorrow and then take some vacuum readings. If you look at the diagram, it has the chamber attached to the long part runner valve. Remove these bolts and set them to the side carefully.
So you were verifying that is the correct part I'm after? When replacing it, you have to remove the entire intake manifold so watch out for the coolant bypass hose plug it before hand. Lift up on the intake manifold cover, and make sure to take care around the intake piping. Low diagrams pay close attention. The code keeps coming back. After resetting the computer, the car drove perfectly and behaved well for the first trip. As well, I also checked the voltage from the black and yellow wire on the imrc solenoid valve 2 pin connector to ground and it showed 11.
After stopping, turning the car off, and then turning it back on, the code has returned. This fixed the rough idle. If you have a power signal, move onto the ground signal. Remove the throttle cover A. I will update once I get the solenoid in place. It came as an assembly with the sensor attached to the runner value and chamber.
Now I am at the point since finding your instructions to follow the steps you provided. I have attached the information below from the diagnostic if it may help to understand if the issue is a result of air flow. I hope this helps others who are having this problem. Hi Gary, thanks for reading! Remove the engine wire harness connectors and wire harness clamps from the intake manifold. Could you please describe in better detail how to test the valve position sensor and the solenoid? Is that all that hard? Now you can replace only the part, instead of the entire Intake Manifold. Therefore, you must remove the entire manifold assembly.
Shop online, find the best price on the right product, and have it shipped right to your door. Remove the upper bracket and cushion mounting bolts A , then remove the bulkhead B. Therefore, you must remove the entire manifold assembly. Thanks, Justin Hi Ken, I applied vacuum to the bypass solenoid valve and it held vacuum. I beleive during a starter replacement the wires were stretched.
Hello there, thanks for using 2CarPros. Try Seafoam through the brake booster line. It is all one piece chamber and runners. Turn the ignition switch off. In order to do this you will need to open your hood and remove the intake manifold cover to expose the valve and wiring. Some of our top Intake Manifold Runner Valve product brands are , and. I have read all the forums and replaced both the rotary valve assembly and the solenoid as well.
Hi, Great news, I have fixed my p1078 code. Fully open the throttle link and cruise control link by hand, then remove the throttle cable B and cruise control actuator cable C from the links. Tech was saying it would be rather simple just one bolt and a couple of hoses. Is there vacuum with the engine at idle? I will be testing vacuum and voltage at 5 rpm shortly. I ensured that the tiny metal square inside the manifold lined up with the channel on the end of the spool valve.
The last thing to check is the signal wire, which runs to your engine computer. I fixed it last year and it seemed to fix the problem. I have visually inspected the vacuum tubing for cracks but have not discovered anything unless there are recommendations to find hairline cracks. This allows for a low throttle and high throttle operation that increases intake velocity and low speed engine responsiveness. This has effectively solved my p1078 code! I cannot find on the web which ecm pins I should be looking at. The runner valve with the chamber must slide out towards passenger side out of the intake manifold. I am beginning to think the valve was positioned incorrectly however, as I did not have a vacuum pump to rotate it to the correct position and rotated it by hand instead.