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  #1  
Old 01-04-2014, 05:25 PM
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190d 2.5- Is EGR relay needed?

I took it out because my EGR is disabled (blocked off vacuum) and my #10 fuse kept on blowing, leading me to no tach, cruise control, power mirror, etc. It seems as if removing that relay has stopped the fuse from going but is it vital to any other function of the vehicle besides the EGR?

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Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.
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Old 01-04-2014, 07:19 PM
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If the IP has an ELR actuator, it's needed for idle speed control. Also cruise and AC.

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87 300D
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Old 01-05-2014, 10:17 AM
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Quote:
Originally Posted by w123fanman View Post
I took it out because my EGR is disabled (blocked off vacuum) and my #10 fuse kept on blowing, leading me to no tach, cruise control, power mirror, etc. It seems as if removing that relay has stopped the fuse from going but is it vital to any other function of the vehicle besides the EGR?
Where is the relay?
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Old 01-05-2014, 11:38 AM
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Quote:
Originally Posted by ichris93 View Post
Where is the relay?
It is behind the battery with the Klima relay and all.
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Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.
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Old 01-05-2014, 11:54 AM
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I believe that 2.5 also used the EDS computer to control boost, so yes, it is needed.

-J
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  #6  
Old 01-05-2014, 01:29 PM
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The '87 190D 2.5 turbo came with a proper pressure actuator.

Sixto
87 300D
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Old 01-05-2014, 02:33 PM
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I should clarify, my car is the NA, not the turbo unfortunately.
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Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.
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  #8  
Old 03-15-2014, 03:58 PM
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can the tach, a/c, and cruise not all get by with the diesel module & Klima alone?

I'm sure the EGR relay is getting hard to come by, and it could be causing his fuse blowing issues.

Also try swapping to a good known OVP.

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