Hi Mark

I do some test on sunday with the crank sensor.

After I erase the code 7 and 27 I start the engine and let it run to engine temp and unplug the crank sensor from the EZl, the car stop.

Take my code reader and read the code from my diagnostic socket(16pin) no code at all, just code 1 (no fault).

I do that five time in a row just to make sure the ECU doesn't need more than 1 time fault to register.

Even after 5 times no code show

After replacing the EZL monday I erase the 2 code. No code yesterday night.

After stalling this morning code 7 and 27 show up again.

The duty cycle with the new EZL is +/- 38% engine warm at idle and +/- 50 % at 2000rpm. A Little bit to rich...

To the expert here, which part most often cause code 7 and code 27

Max