Hey Guys,

So I have recently started having a somewhat shaky idle..smooth, but pretty lopey throughout the whole car. After thinking about it a while, I decided to check on my ELR because I remembered how much worse the idle got when I had it disconnected a while back to up my idle rpm.
Anyway, it seems the system is not working- when I take the two-prong connector off the IP, nothing changes. No effect with the ELR wheel either.

I did a pretty thorough electrical spray cleaning, but still nothing. It seems to be the worst when the engine is warm. It really isn't that bad, but I like to be on top of things, so...

Has anyone else dealt with this? Any quick fixes? I have heard of people saying that it can go bad, but never heard of anyone dealing with it. I might consider trying to buy a new wire connector to the IP since mine is as stiff as a board from being old. I took a glance at the wiring diagram in the FSM, but it looks like a mess and I wouldn't know where to even start past the IP, selector knob, and OVP (which is somewhat new, and the fuse is fine)

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Dan
2005 E320 CDI - 246k
1987 300SDL TD05-16g, Herlevi pump, Elbe manifold, 2.47 LSD - 213k
Past: 1987 300D - 264k

OVP Relay, ELR control box, actuator on pump are all possibilities. I had a bad OVP relay AND a bad ELR box. You can test the pump actuator by giving it 12 volts BRIEFLY. The idle should increase as soon as you put voltage to it.

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1987 W201 190D

I'm going to try to PM you the idle test procedure.

Er, make that I'll need your email, it's 7 pages in pdf.

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1987 300D (230,000 mi on a #14 head-watching the temp gauge and keeping the ghost in the machine)
Raleigh NC - Home of deep fried sushi!

Thanks guys.

Just to clear up any possible questions, I am 90% sure it is the ELR that is making my idle like a massage chair (although a subtle one).

I have new motor mounts, new injectors, new delivery valve seals..and everything was fine up until about a week or two ago. The only other thing I can think of is that maybe the timing is slightly off after swapping the injectors, but..I am still getting good mpg and no smoke, so I doubt it is off enough to cause a shake.

It's possible that the ELR is working when cold, and then not working when warm, but I'll need to check on this again to make sure it wasn't my imagination.

__________________
Dan
2005 E320 CDI - 246k
1987 300SDL TD05-16g, Herlevi pump, Elbe manifold, 2.47 LSD - 213k
Past: 1987 300D - 264k

Sean, got your email- thanks!

After skimming through the procedures, I suspect that either the ELR actuator in the IP is either bad, or not getting battery power. I'll keep the thread posted with what I find.

__________________
Dan
2005 E320 CDI - 246k
1987 300SDL TD05-16g, Herlevi pump, Elbe manifold, 2.47 LSD - 213k
Past: 1987 300D - 264k

Did you R/O with the actuator test-- apply batt voltage directly to the actuator (for a second or three, no longer) and see the idle go up?

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1987 300D (230,000 mi on a #14 head-watching the temp gauge and keeping the ghost in the machine)
Raleigh NC - Home of deep fried sushi!