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    Iac??

    :banghead: :banghead: Merc Mtneer, 97, AWD, 5.0. The engine has an intermittent idle on starting, but at erratic intervals. Mostly when its cold. after it warms up, (not even to operating temp), you can turn it off and re-start and it idles along perfectly. Only mod is the headers for the...
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    1997 mtneer headers

    i have a 97 mtneer w/ 5.0 and bought the FRPP headers for it as the stock manifolds went to crap. now, after 6 mos and 10k miles, the ck. engine lite comes on intermittently. anybody got a clue how to fix it? the dealership said the pcm shows numerous codes and i just put brand new O2 sensors in.
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