What does code p1518 mean?

Answer 1

Code "P1518 IMRC stuck open" this is one of many codes could mean different things for different auto makers.

IMRC is the intake runner manifold control. They are the secondary butterflys in your intake manifold, sort of like the secondary butterflys on an old 4 barrel carburetor. It should only open at high throttle, 3000 rpm or so. They are showing stuck OPEN all the time.

This code is associated with throttle control in Ford Windstars. One or more of the following actions will need to be performed to fix this situation.

1. The (IMRC) is part of the the intake manifold and will either need to be cleaned or replaced. Excess Carbon is a primary factor in this sensors failure.

2. There may be other contributing factors to causing this sensor to fail. In some models the sensor is attached to vacuum lines. If these lines are leaking (broken or brittle) these lines will leak and cause the sensor to stick open resulting in a (P1518) code. Replacing the vacuum lines, cleaning or replacing the sensor is required to clear this code.

3. On other models there are bushing clips that hold butterfly linkage in place. These bushings can be obtained at parts stores such as OReilys Auto Parts. The O'Reilly part number is 47099. The package says Vacuum Retainers/Bushings.

The vehicle will have to be driven after this repair is made to clear the code from the vehicles computer. This is typically anywhere from 60 to 120 miles.To jump start the reset you can unhook the battery from the vehicle for about 30-45 minutes. If the code does not return immediately (within 10 -15 miles) you are on the right track.

If an inspection is pending the removal of the code from your cars computer, you may have to travel 60-120 miles before this code will permanently clear.