Originally Posted by andrewwynn

Two very separate problems. Unplugging the purge valve is just a shortcut to run in. Driving a distance does the same but the purge valve trick resets the computer and you can clear errors without driving in limp mode.

It sounds like you had/have an actual defect in the purge valve system but i had one that diagnostics pegged to the pump but it was momentary and fixed itself. If you smell gas you might have a faulty vapor canister vent or hose.

The Valvetronic is a very different problem. The sensor is built into the motor. If you are getting limit or other Valvetronic errors, and if you get very rough launches especially when cold, it's usually the Valvetronic motor.

You can unplug the motor and the card will use the backup throttle plate. It'll still be very jerky when cold but barely noticeable when warmed up.

I found a German made VT motor on eBay for about $230. It's quite a procedure to change since it's under 4 of 6 injectors which are under the valve cover.


–awr–

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