190e 2.3 1987 5speed

Where is the resistor for the coolant sensor and the resistor for the ezl?
Where exactly are the these resitors cuz id like to go ahead and change them out to aquire a bit more hp?
Expalin in deatail so that i can find these resistors.
Thank You


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I think the coolant temp sensor is located in the t-stat housing.

Just what do you think your gonna do with it. I don't think the EZL uses temp corrected timing in 1987. I could be wrong though. Anything you do to the fuel system will be corrected for until until you exceed the adaptive limits. If you do that you will only succeed in burning more fuel.

The only way you can improve on MB's set-up would be with timing. (Short of major changes in the motor)

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Steve Brotherton
Owner 24 bay BSC
Bosch Master, ASE master L1
26 years MB technician

Under normal running conditions the computer will correct the fuel mixture for the best possible mixture (emission). However by adding resistance to sensors at full throttle the mixture will be richer & the ignition system will allow a bit (2-3deg) more timing. The 87 & later cars use a computer for timing & there ins't any way to change timing other than resistor changes.
We're talking minor changes 3-4hp max.

I need to find out where the resistor for the coolant sensor is inorder to replace it.