Hi every1 hope u can help I need to know what ohms the temperture sensor for the ecu is when cold then after idle/driving for 3mins then fully warm I don't no if hitich is diff to Bosch if so I need readings from a Bosch system mine when cold I.e thismorning was 3.06k ohms then after 3 mins of idling is was reading 2.58k ohms as my lumpy running at idle is not there 1st thing but starts then the sensor starts to read slightly warm engine hope that makes sense .
ecu temperture sensor
- Thread starter geoffdown
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sorry engine coolant for the ecu:thumb2
ok did a test to day and when the sensor is reading around 3k ohms engine is not lumpy at all but as soon as the temp rises its lumpy when coming back down to idle so looking at ur details it looks like the ecu is not reading the data from the coolant sensor feels like the ecu is either over fueling or trying to adjust the timing so it stutters only when rev range is between 900- 1150 rpm.
no it starts off round 3.06k ohms and when it gets to below 3k starts to play up i have unpluged the sensor and pluged in 1sensor which is the old 1 not in the engine just loose so it wont get as hot quickly as the sensor still in the engine and the engine doesnt go lumpy till over 2mins where it would go lumpy from cold after 30 sec so i dont think its the temp sensor if that makes sense:doh
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does it get down to a couple of hundred ohms or so when the engine is at or near normal temp?
Because if its still reading over 1K or so at normal temp that's not good.
The fuel temp sensor also plays a significant part in this too, making the ecu think the fuel is colder than it really is was an old trick to get more fuel in!
Because if its still reading over 1K or so at normal temp that's not good.
The fuel temp sensor also plays a significant part in this too, making the ecu think the fuel is colder than it really is was an old trick to get more fuel in!
