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You have changed ever sensor? That's expensive! I had a similar problem on my SL1 and it was the coolant sensor. The little pin inside (where the wires were attached) was broken off, so the problem exhibited different symptoms when it jiggled around (making contact whenever it wanted to!!!). So...sensors are good...maybe check the connectors? Sorry I cant be of more helpRon

Answera buddy had a 91 its was doing evedrything under the sun wouldn't shift rough idle turn off back fire everything turn out to be the computer $40 at local junk yard 15mins of work all fixed
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Q: Have a 95 Saturn sl2 what causes the car to do a little backfire then check engine light comes on starts to shake and lose power changed every sensor in it?
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