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Oil in Map Sensor


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The MAP sensor in 94 sits in the intake manifold with the fuel pressure regulator and fuel rail. Direct vacuum acts on it. It is normal for oil to get on to the MAP and it will not affect its performance.

Are you having any driveability issues?

Is your on-board diagnostic system setting any trouble codes?

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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The MAP sensor in 94 sits in the intake manifold with the fuel pressure regulator and fuel rail. Direct vacuum acts on it. It is normal for oil to get on to the MAP and it will not affect its performance.

Are you having any driveability issues?

Is your on-board diagnostic system setting any trouble codes?

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Thank you for your prompt reply. I thought that I have oil leak and have to replace some seal or gasket.

Yes, I had codes 32 and 71. engine was shutting down. Oil was going through the water connector inside the pins in the MAP sensor and cosing engine to stall and even stop. I cleaned the sensor connections and applied silicon to stopped oil from getting in. For now, engine runs okay. is there better way fix the problem?

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