190E (W201) 1982-1993: 190E 2.3, 190E 2.6, 190E 2.3-16, 190E 2.5-16, 190 D 2.2, 190 D 2.5, 190 D 2.5 TURBO, 190E 2.5-16 Evolution I, 190E 2.5-16 Evolution II

190e Sportline- It's killing me.

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Old Feb 22, 2015 | 11:01 PM
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pacothesquirrel's Avatar
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1993 190E 2.6 Mercedes-Benz
190e Sportline- It's killing me.

I absolutely love this car. We've been through everything. I got it for graduating from High School and have held on to it ever since. But now it's killing me. I'm having issues with the car starting and pulling. It has no pep anymore. I have to cross my fingers and preform some kind of insane ritual for it to even begin to crank. Once started, it's rough. REALLY rough. After letting it sit for about 5-10 minutes, it idles somewhat smooth. Normally I let it sit a while longer to "wake up" and then I try taking it easy. Going uphill I'm crawling at 35, and it's steadily choking. It's yet to cut off, but it just kept slowing down and sputtering. NOTE: I've always put premium in the car, from trusted fuel stations. Here's a list of things I've done.
All New and Tested:
Distributor & Rotor
Plugs/Wires
Cold Start Valve
Fuel Filter
OVP Relay
Battery
Voltage Regulator
Air Filter

Things I plan to do:
Injectors?
O2 Sensor?
Cutting the Catalytic Converter?

Any kind of help, ideas, or advice will be greatly appreciated. Trying to save some cash, I've spent my entire refund check on this car.
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Old Feb 26, 2015 | 07:34 PM
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DocWalla's Avatar
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From: Arizona
1991 190e 2.3
Clogged cat, bad o2 sensor, large vacuum leaks, oil in the breather hose will clogs lines to the fuel pressure regulator and icv. Maf sensor on the front of the air box bad. If short on cash and can't diag yourself, pay the 100$ flat rate diag fee at a shop, figure out what's wrong, fix it yourself if you have the ability to.
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