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Onefast99gsx · 07-22-2005

The manifold differential pressure sensor is located directly on top of the 2g maifold. You can't miss it. It's there by itself. Check the wiring to it and make sure it's connected. If it is, take the connector off and reseat it.

One of the ECM codes could be triggered by the other, thus one particular problem could throw mulitple codes.

Anyway, Check that sensor.

07-22-2005	#2
Onefast99gsx Join Date: Sep 2004 Location: Wisconsin Posts: 1,411	Re: Engine codes: P1400,P0170 The manifold differential pressure sensor is located directly on top of the 2g maifold. You can't miss it. It's there by itself. Check the wiring to it and make sure it's connected. If it is, take the connector off and reseat it. One of the ECM codes could be triggered by the other, thus one particular problem could throw mulitple codes. Anyway, Check that sensor.