Greetings all
I have been having the following issue for quite some time now with my 1989 240 equipped with lh 2.4:
After a highway run the car idles too high: around 1500rpm
I get the following codes:
3-1-1 speedometer signal absent
2-3-1 adaptive fuel trim too lean or too rich in part-load range
I am familiar with the fact that if you have no speedo signal the car will idle high but I do have a speedo signal... I know how fast I'm going...
Tried different clusters and I still have the same issue
Could it be an ECU problem?
Thank you for your help
I have been having the following issue for quite some time now with my 1989 240 equipped with lh 2.4:
After a highway run the car idles too high: around 1500rpm
I get the following codes:
3-1-1 speedometer signal absent
2-3-1 adaptive fuel trim too lean or too rich in part-load range
I am familiar with the fact that if you have no speedo signal the car will idle high but I do have a speedo signal... I know how fast I'm going...
Tried different clusters and I still have the same issue
Could it be an ECU problem?
Thank you for your help