Traz

New to me is a 95 E320 Wagon, the seller was asking $500, after he told me the harness was replaced, I got excited and immediately beat him down to $350.


At 327,XXX miles the thing runs great. Except the trans needed servicing really badly, flares between 2-3 and 3-4... I can live with that because I have a 722.6 to swap.


My main concern is high idle. The original ETA seems to be repaired because the insulator on the harness that is coming from it is definitely not a factory insulator, I swapped another ETA and got the same result.


So I made some slits into the harness close to the ECU and did the same to the opposite side closer to the ETA side and saw the shiny new wires inside. I can post pics tomorrow


Could it be that the ECU might be damaged, any input and consideration would be greatly appreciated.


Thanks

Plutoe

You sound like you know what your doing---have you looked at the documentation for that engine and attempted to adjust the idle?

Traz

The only adjustment that I know is possible is at the cable.. That already has a lot of free play in it.

Plutoe

Post your VIN!

Traz

Here goes...

Plutoe

Your engine is an HFM type 104.992---idle speed 700+-50.

Before you do any of the electronic idle speed diagnostics with your HHT make sure that you review the attached linkage adjustment doc----is it adjusted correctly--Yes or No

Traz

Thank you very much for the research and material Sir Plutoe.
When i installed the ETA i left the linkages disconnected, the idle was still high.
interestingly enough though, ive been thinking of disconnecting the linkages again and unplug the ETA harness to see what happens.

I have been in perplexing situations like this before and eventually an ahaa! moment surfaced. However this one seems to be quite the enigma

optimusprime m1

Would look for other preoblem before you make any adjustments
My guese would be vacuum pipe off some place ,sucking air in .
Give it a good check, if it ran low revs before the repair ,then it should do now .

Traz

I've only had the about 4 months, the idle havs always been on the high side.

im going to gove it another thorough once over...

i was told that the valve cover gaskets could cause that.. i do know that they are worn so i am going to replace them

optimusprime m1

Well if its any thing to go by,, my rocker box gasket leaks a little ,, and at the timming chain cover. And my idle is bang on .But first check all the vacuum hoses and small bore nylon pipes . The tranny also uses vacuum to help smoth out changing of the auto box in more ways than one. Is the vacuum pipe secure on the gearbox. Let us know .

Traz

You are correct my good man..

I changed all valve cover things and no change.
Yes my trans vac is good, because i thought the modulator was bad so I replaced the rubber fitting the goed between it and yge nylon line.

however; while replacing the valve cover stuff i noticed an open port on the intake manifold.. see pic.

I havent tried blocking it as yet, though it seems like something should be connected there. Picture is a lil dark. But the port is at the end of the screwdriver. It it located under the intake runners that is under the point where in intake duct crosses over the motor

optimusprime m1

I am pushed for time right now .Been on this forum , or another for the past 4 hours helping out . Need to pick up on this Sunday . Do you know what engine is in your car.Let me know so i can bring up info on the inlet or outlet pipe thats missing from there . Trev

Traz

Hi Trev, my engine is an HFM type 104.992.
Thanks.

optimusprime m1

Traz posted it on my other forum, so now i will need to wait for a reply . Trev

Traz

I tried the diy code reader on pin 14 of the diagnostic socket and got 2 pulses..

is this good bad or ugly?