the ecu chip for the 190e 2.3

[mr benz]

The jett chip for the 190e 2.3 1987 is suppose to offer an increase 10-15 ponies of horsepower to the 8v engine.
Does anyone know if those chips really work?


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[Benzmac]

I would think that you might have to send in the ECM, the chips are soldered on to the board I think.

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Benzmac:
1981 280GE SWB
1987 16V
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

[mr benz]

Benzmac youre right , but does the chip offer any real horse power? I mean every lil bit counts.

[mbdoc]

Since there are seperate controls for fuel & ignition systems a "chip" does little or nothing on this type of car. Gains w/chips are made thru increasing fuel & timing, there are adjustments & "sensor" changes that can pick-up a few HPs.

[mr benz]

Well mb Doc what are those sensors and adjustments that i can do to pick up a few more ponies?

The cis-e brain in your car really only controls cold start,lamdia and idle speed. We have tryed for years to rework the brains with several chip companies and we have tested AMG braines as well on the dyno and we have found little or no change. One of our biggest hp pulls was with the brain disconnected.
You will get better gains with the sensors like MB Doc stated and playing with the ignition or building a stroker motor.
Rick

[mbdoc]

Add 400-500 ohm resistor to coolant temp sensor on lead to CIS-E computer & 1000-1200 resistor to EZL lead. This should help the car a bit. W/O doing exhaust system mods there isn't too much more to do.

[mr benz]

Thank you MB DOC.
Im going to do these things, i am going to
get a schematic, in order to locate these areas of the wiring system to replace the resistors. Can i obtain a schematic from the MB dealership.