Why does your 1992 Dodge Shadow 2.2L TBI run so bad when it's cold and then run nice when it warms up?

A search from Ask.com 9. Gas mileage / rough running easy fix Vaughn Smith suggests that, when you replace your rotor ($6 at a dealer), you clean the Hall effect pickup (just under the rotor, you can't miss it!). This helped him quite a bit on three cars. Be careful to put it back the exact same way it was when you took it out! Also clean under and around it. You can also look in the FAQ's at allpar.com for more Ideas. Good Luck and Remember.
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