Arthur ... Yes ... I search everything to verify that I am doing things correctly. I found "Purge" in numerous places but none corresponding to a location or other terminology.

Well, I got a can of CRC MAF cleaner, removed the sensor and sprayed it down according to the directions. Again, no change.

I took your advice and checked the codes again. This time I got a code 23 on plug #8 that I believe indicates a misfire on coil #2 for cylinder 3/4.

I listened to the injectors click with a mechanic's stethoscope and they all sound the same with a nice audible click.

When I was changing the plugs, I checked the resistance of the coils; all were about 0.6 ohms. This seamed low but it was consistent across all three coils.

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Jim Villers
190SL, 230SL 5-speed, 95 E320 Wagon, 01 E320 Wagon, MGB, Boxster 'S', 190SL "Barn Find"