Trans dosnt want to shift out of 1st?!?

If you suspect your MLPS may be bad, here is some good info for testing.

Specs - MLPS Voltages and Resistances (Gear, Volt, Ohms):
Park, 3.97-4.85v, 3770-4607 ohms
Reverse, 3.25-3.96v, 1304-1593 ohms
Neutral, 2.55-3.11v, 660-807 ohms
Overdrive, 1.88-2.30v, 361-442 ohms
Second, 1.23-1.51v, 190-232 ohms
First, 0.61-0.75v, 78-95 ohms

For the backup lamps, the switch must make continuity between pins 2 (Pink/Orange wire) and pins 3 (Black/Pink wire).

For instance, my car was the following (which is a working MLPS):
P - 4.410v
R - 3.615v
N - 2.860v
D - 2.105v
2 - 1.390v
1 - 0.675v
 
I had the exact same problem on a 97 I had about 4 months ago. First thing I did was drop the pan and put a updated 1-2 accumulator in and changed filter, drained convertor and refilled with Mercon V. No change whatsoever. Then I bought a new mlps from Napa, think it was a standard motor parts brand. Car wouldn't even start with that mlps. Sent it back and took a known good one off of a parts car. No change either. I would say m maker is probably dead on with his diagnosis.
 

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