Ford Sierra/Sapphire/RS500 Cosworth This forum is for discussion of all things pertaining to the Ford Sierra Cosworth.

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09-08-2016, 01:34 PM

#1

jimhc

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testing

I'm having a problem with over fueling badly. I have changed the wts with 2 new sensors still no difference. I'm wondering how do you check to see if a 3 bar map sensor is working properly?

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09-08-2016, 05:47 PM

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cossie2

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are you sure that the eprom is written for 3 bar map sensor..if so try again replacing the blue water temp sensor..
MAP SENSOR CHECK: Check for DC voltage of approx 1.8 to 2.5V between pins 11 and 15 with ign on..

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09-08-2016, 05:57 PM

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costina

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Fuel pressure check also check fpr is not leaking into plenum.

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