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Eccentric Shaft Position Sensor (ESPS) B1-27.

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Old 05-14-2006, 01:35 PM
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Eccentric Shaft Position Sensor (ESPS) B1-27.

Does anyone know how to get at this sensor? I can just barely touch it let alone pull it off. According to TSB 01-004/05, this sensor must be removed to supress spark plug operation.

My car flooded so I took out the plugs and cleaned them with a toothbrush and gasoline. The procedure of holding the gas pedal to the floor didn't work for me, but I only tried it a couple of times.

I actually turned over the engine with the plugs out and the sensor still plugged in. This means that the plug voltage did not have a clear path to ground. Could this have done any damage. I assume not, since it must be taken into account that the plug wire could come off the plug during normal operation.

While I have the plugs out I think I will also check the compression with a maximum reading mechanical compression gauge. I know that a proper compression test would measure all three lobes but without the proper equipment, this at least will give the maximum pressure in each rotor, a result which should provide a necessary but insufficient condition of acceptance.

I replaced the oil, and I may squirt some into the plug holes to improve compression during starting.

Even if you know how to get at this sensor plug, do you know how to squeeze it so that it releases from the sensor?

In the fuse box, there is a fuse called 'engine'. Do you know if removing this will suppress the spark? Removing the 'Ignition' relay kills the whole engine.
Old 10-15-2006, 08:08 PM
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My car flooded yesterday, and I thought to myself how am I supposed to get the connector off. I worked at it work a while, and could not get to it from above.

However, with the drivers side front wheel off, and the car jacked up the spark plugs and the eccecntric shaft connector are very easy to get to.

For the shaft sensor connector, from underneath you have a completely unobstructed view of the connector and it took very little effort the get it off.

I felt like such an idiot for not taking a better look from underneath the car before.

I just finished cranking the engine over to expell the fuel, cleaned my plugs and added the oil to the two intake ports. Unfortunately, my battery is weak and I am waiting to re-install the spark plugs while the battery charges.

I will post again with results. Good Luck!!
Old 10-17-2006, 12:15 PM
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Thanks a lot RotaryIT. I knew that taking the front wheel off greatly facilitated work on the spark plugs, but never thought of getting to that connector by that route.
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