2008 hpdi series 2 high idle

[djaxslam]

Idles high at 1100 all the time. Used to do it off and on now all the time

 

[boscoe99]

If the ECU detects an anomaly from any of its inputs it will cause the RPM to increase.

 

[djaxslam]

If the ECU detects an anomaly from any of its inputs it will cause the RPM to increase.

Do you know the fix?
Thanks

 

[QBhoy]

even when warmed up and in gear ?

 

[djaxslam]

even when warmed up and in gear ?

Yes

 

[boscoe99]

Do you know the fix?
Thanks

If it is a malfunctioning sensor the fix is to replace the defective sensor.

 

[djaxslam]

Thanks

 

[99yam40]

time to hook it up to YDS to see what the ECU does not like.