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  1. GM Electrical Tech
    Hello. I have a 1989 Suburban. 5.7 2WD. Automatic transmission with OD 784K miles. Started out with throwing an intermittent code 32: EGR MAP fault.Changed all the related accessories. (EGR valve and solenoid. Map sensor, Water temp sensor, throttle position sensor) This did not fix the...
    code 32 ecm-b
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