Like I said in a earlier comment, did you check the main vacuum hose under the intake? If you have good spark and you have fuel, either by delivery or priming it and it won't fire, a massive vacuum leak will cause this. Is this a 2.3?

the bat is at 13.2

2.6 vacuum ok

How did you check the bottom vacuum hose? Did you remove it along with the plastic nipple to check the condition?
Are the spark plugs wet after trying to start the engine?

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1993 190E 2.3
2001 SLK230
1971 LS5 (454) Corvette Convertible

after some free time today I pulled the no.2 injector an caped it with a water bottle(16oz) just because some one will ask.lol I had checked the pumps and ovp and was getting strong fuel flow and pump are working at prime and run setting. but when I checked the injector no fuel. I do not understand why I had no start up with starting fluid but I did not. I had Larry rebuild this fuel distributor last year, so I am at a loss as to the trouble.

Did you try lightly pressing down on the fuel distributor plate?

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1993 190E 2.3
2001 SLK230
1971 LS5 (454) Corvette Convertible

Well, if you have spark and you introduce fuel directly into the intake, bypassing the fuel management, it should fire. Unless you have no compression or a vac leak. Simple rule. Fuel, spark, compression and air, but not too much air and the engine will run. Maybe you should run a comp test. For something like this you need to start with the basics before guessing and throwing any parts at it. These 103s are pretty simple engines....Are you sure you're getting nice blue spark? Can you hear a nice tapping spark if you hold the plug suppressor just off the tip of the plug while cranking. Are you checking your spark at the plugs or at the coil? This has got to be something very simple. Check to see if your bridge at the end of the cam is broken to see if the rotor is spinning. they do break sometimes and will have spark off the coil, but it won't
make it to the plugs.........I'm really curious now..

You didn't mention this in the first post, but did your engine stop and not re-start while driving, or would it not start after sitting?

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1993 190E 2.3
2001 SLK230
1971 LS5 (454) Corvette Convertible

Ok folks i have finely recaptured my fuel test kit low and behold 3.4 bars and .4 bars so I ether have a badly contaminated fuel filter or bad pump. have another project so this will be on hold for today

So ok I bought the position sensor but it did not fire with the eather so I jumped to the conclusion that it was electrical. I did not have my fuel testing equipment, so all I did was check to see if the pumps worked.

I recently had a similar problem on my 190E 2.6. Testing and analysis pointed to the fuel accumulator. I tested it by disconnecting and plugging the hose on the backside that tees back into the supply hose from the tank and installing a test hose on the accumulator nipple.

Turning the ignition on energizes the fuel pumps for a second and when I did, fuel ran out the test hose indicating the accumulator had failed internally and was not holding pressure. So when the fuel pumps are energized, fuel is shorted back into the supply hose from the tank and the system will not build pressure. A friend with an '82 911SC had a similar problem a couple of years ago, and it was the accumulator.

Now, here's the rub. There is no available stock of the Bosch replacement part, 0 438 170 035, and Bosch USA does not expect to have any until the end of May. Mercedes does have stock, 000 476 06 21, and the list price, $287, is about double the price of the Bosch part from Pelican.

I did find an online dealer in Kansas City who offered the part for $190 plus shipping, but they had to order it from the Fontana warehouse. So it goes from Fontana to KC and back to me in SoCal. I hope to have the part by the end of next week.

Suggest you run the same test on your accumulator and go from there. The same acculuator was used on virtually all models with four and six-cylinder CIS-E engines from '84 to '93. I'm really suprised that Bosch ran out of this part in the USA. It may be the most common CIS part failure.

Duke

duke 2.6 I have a list of testing, after my fuel gauges got back to me my first test showed 3.4 bars .4 bars, so two new fuel pumps later I have 5.4 bars and 5 bars good to go still no fire in the hole. still more testing I took my spark plug tester to see how the spark looked, low and behold only one spark I then checked each spark plug and the same thing one spark only. As if it had a bad ballastresister so now I am looking at coil or ezl though I am going back to check the accumulator. but for now I am looking for answers and opinions.