Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revisionLast revisionBoth sides next revision | ||
articles:cis-e_fuel_adjustment [2021/09/07 05:49] – [Adjusting EHA Valve] john5788 | articles:cis-e_fuel_adjustment [2021/12/04 03:14] – john5788 | ||
---|---|---|---|
Line 34: | Line 34: | ||
At this point, the control unit should be in the diagnostic mode for outputting the fuel trim as an on/off ratio. After this, when the engine is started, the CHECK ENGINE LIGHT should be illuminated. | At this point, the control unit should be in the diagnostic mode for outputting the fuel trim as an on/off ratio. After this, when the engine is started, the CHECK ENGINE LIGHT should be illuminated. | ||
- | ==== Notes and Exceptions ==== | + | **Note:** Some ECUs do not require being put into a diagnostic |
- | + | ||
- | | + | |
- | * 1993 190E 2.6 - This ECU does not need to be switched into a special mode. The on/off ratio will be available | + | |
===== Reading the on/off ratio ===== | ===== Reading the on/off ratio ===== | ||
Line 104: | Line 101: | ||
==== Adjusting Fuel Distributor Screw ==== | ==== Adjusting Fuel Distributor Screw ==== | ||
- | If there is a steel plug present, it needs to be drilled out first. | + | If there is a steel plug present, it needs to be drilled out first. Engine must be idling for this adjustment. |
< | < |