Does anybody know where to buy a remanufactured Fuel Injection ECU for my 1987 190E 2.3-16 ??. The MB part number is 006 545 07 32, Bosh # 0 280 800 234

Thanks,
Octavio

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87 Euro 190E 2.5-16
91 SportEvo E30 M3

I bought one from Python, through NOPI Auto Parts. Python has a website. So does NOPI, but it has a lot of girls in bikinis on it and you probably don't want to look at that!

Thanks, I'll check it out.

Now, can anyone with a 2.3-16 confirm the part numbers of the ECU ??. ie, 006 545 07 32, Bosh # 0 280 800 234

Also, does anybody know what does the R17 CIS-E Resistance Trimming plug do ??. After seen what's posted on http://www.a-p-group.com/ashman/pdf/r17.pdf I'm not clear what it does.

I mean, I guess it changes the fuel maps, but after seen the explanation on the service manual, I'm not sure if it clears the fault codes ( I didn't even thought it could store fault codes ) or if it allows a change on the maps depending on the condition described on the table that you're trying to address. Anyone really knows ??, if so, does anybody has the description for the 2.3-16 ??. How does it really works ??

Thanks again,
Octavio.

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87 Euro 190E 2.5-16
91 SportEvo E30 M3

Actually its the R16 trimming plug on 16v, I forget what cars its called the R17. http://www.a-p-group.com/ashman/pdf/r16.pdf All this will do is adjust the timing from 0 retard to a couple of degrees retard. That's all it will do.

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1985 190E 2.3-16 Euro

No, no, no. I know what the R16/1 does, as you said, it changes the ignition maps, it does nothing about the fuel.

I'm really talking about the R17/1 plug which is right next to the OVP relay. R16/1 is right next to the EZL on top of the left wheel fender. R17/1 is connected between pins 22 and 7 ( ground ) of the ECU.

As you said r16.pdf explains the different ignition retards you get when changing the resistance. On the other hand. I'm trying to determine what does the explanation on r17.pdf means.

Thanks anyway,
Octavio.

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87 Euro 190E 2.5-16
91 SportEvo E30 M3

I m sorry I see what you mean now after reading the r17 explanation. I was under the impression however that mercedes cars don't have both...I thought that some cars had r17, some had r16, and they both did the same basic thing...adjusted ignition timing. Are you sure you have both? If you do have both in your car, I assume the r17 does the same but with respect to fuel?? Maybe not, but CIS-E (r17 trimming) is not only ignition while EZL (r16 trimming plug) is.

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1985 190E 2.3-16 Euro

You get it now, my car has both. Your car has probably a fixed 750 ohms R16/1 and a round plug for a R17/1 which is right next to the OPV relay.

You have a 1.3-16 valves, do you ??, could you please check your ECU number ??. Does your car has two or just one fuel pump ??

Thanks,
Octavio.

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87 Euro 190E 2.5-16
91 SportEvo E30 M3

Mine is a 190E 2.3 8valve (Belgium) and it seems to have both plugs also. The EZL plug is a knob with two fixed values, marked "S" and "N", and presumably controls the timing.
The other is near the CIS_E ECU, and has 7 positions, marked from "1" to "7", it is set to "1" from factory and has a tamperproof wire.

Is there any official info available for that resistor? It seems to be very often confused with R16.

Thanks!

The labels "S" and "N" are for the gasoline octane rating, Super and Normal. On Super the timming is a little more advanced, that will will give a couple of more HPs. You can try setting it to "S" and try to hear for detonation on the engine. If you don't hear anything unusual, you can leave it there. If you hear the engine pinging, you probably need to get a higher octane gas.

On the other plug, from the measures I've taken on the CIS system, the other plug controls some sort of a fuel correction factor. I have a couple of pages from an MB manual of a 300 (124)series and the various position are the to correct different behaviours on the engine.

From what I understand the higher the number on the plug, the higher the fuel mixture goes as a correction factor.

Send me an email account if you want me to send you the PDF file.

Octavio.

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87 Euro 190E 2.5-16
91 SportEvo E30 M3

Thanks!
Sure: email it at ssanmor@canal21.com Thanks!
What measurements did you do? Did you measure the EHA current or the duty-cycle indication? Did it vary with the setting?

Sergio

Octavio If you wouldnt mind I would love to see that pdf also my address is yal@hotmail.com

Thank you.