Question about 1994 Volvo 940
Codes 121 and 512 what do they mean, in a 1995 volvo 850 no turbo
Are these codes read from the A2 - engine slot? if so:
121 - missing or faulty MAF signal
512 - long term fuel trim too rich
Posted on May 29, 2009
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Posted on Jan 02, 2017
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