Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision | ||
parts:0000703962 [2020/11/16 08:41] – [Adjustments] john5788 | parts:0000703962 [2021/12/26 07:42] (current) – [Adjustments] john5788 | ||
---|---|---|---|
Line 2: | Line 2: | ||
< | < | ||
<col sm=" | <col sm=" | ||
- | <panel type=" | + | <panel type=" |
< | < | ||
<image shape=" | <image shape=" | ||
Line 12: | Line 12: | ||
</ | </ | ||
</ | </ | ||
+ | |||
+ | ===== Description ===== | ||
+ | |||
+ | The EHA (Electro-Hydraulic-Actuator) is an electrical valve that controls the pressure on fuel distributor. The duty cycle of the EHA valve is determined by the O2 sensor. The EHA valve is only used on vehicles with the KE-JETRONIC fuel injection system. | ||
A bit of background on the EHA's function: it is an electronically controlled servo (controlled from the CIS-E main computer) that uses a variable current to make the last, minute adjustments to the fuel flowing into the fuel distributor and then into the combustion chambers. It does this by maintaining an appropriate differential pressure between the upper and lower chambers of the CIS-E fuel distributor. Essentially, | A bit of background on the EHA's function: it is an electronically controlled servo (controlled from the CIS-E main computer) that uses a variable current to make the last, minute adjustments to the fuel flowing into the fuel distributor and then into the combustion chambers. It does this by maintaining an appropriate differential pressure between the upper and lower chambers of the CIS-E fuel distributor. Essentially, | ||
Line 56: | Line 60: | ||
</ | </ | ||
</ | </ | ||
+ | |||
+ | See also: [[articles: | ||
+ | |||
===== Troubleshooting ===== | ===== Troubleshooting ===== | ||
There are 2 small o-rings that seal the EHA valve to the fuel distributor. As these wear out from old age, fuel pressure may leak from this area and cause issues such as difficulty starting, incorrect fuel mixtures, etc... These can be easily sourced online by searching **2430210041** online and replaced. More often than not, these o-rings go bad before the EHA itself goes bad. | There are 2 small o-rings that seal the EHA valve to the fuel distributor. As these wear out from old age, fuel pressure may leak from this area and cause issues such as difficulty starting, incorrect fuel mixtures, etc... These can be easily sourced online by searching **2430210041** online and replaced. More often than not, these o-rings go bad before the EHA itself goes bad. |